GridView72般技巧

以你之姓@ 2022-04-01 15:04 186阅读 0赞

快速预览：  
GridView无代码分页排序  
GridView选中，编辑，取消，删除  
GridView正反双向排序  
GridView和下拉菜单DropDownList结合  
GridView和CheckBox结合  
鼠标移到GridView某一行时改变该行的背景色方法一  
鼠标移到GridView某一行时改变该行的背景色方法二  
GridView实现删除时弹出确认对话框  
GridView实现自动编号  
GridView实现自定义时间货币等字符串格式  
GridView实现用“...”代替超长字符串  
GridView一般换行与强制换行  
GridView显示隐藏某一列  
GridView弹出新页面/弹出新窗口  
GridView固定表头(不用javascript只用CSS，2行代码，很好用)  
GridView合并表头多重表头无错完美版（以合并3列3行举例）  
GridView突出显示某一单元格（例如金额低于多少，分数不及格等）  
GridView加入自动求和求平均值小计  
GridView数据导入Excel/Excel数据读入GridView

1.GridView无代码分页排序：

效果图：

1.AllowSorting设为True，aspx代码中是AllowSorting="True"；  
2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。  
3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。

2.GridView选中，编辑，取消，删除：

效果图：

后台代码：  
你可以使用sqlhelper,本文没用。代码如下：  
using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;

public partial class \_Default : System.Web.UI.Page  
\{

//清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet]  
SqlConnection sqlcon;  
SqlCommand sqlcom;  
string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
bind();  
\}  
\}  
protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
\{  
GridView1.EditIndex = e.NewEditIndex;  
bind();  
\}

//删除  
protected void GridView1\_RowDeleting(object sender, GridViewDeleteEventArgs e)  
\{  
string sqlstr = "delete from 表 where id='" + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcon = new SqlConnection(strCon);  
sqlcom = new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
bind();  
\}

//更新  
protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
string sqlstr = "update 表 set 字段1='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',字段2='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[2\].Controls\[0\])).Text.ToString().Trim() + "',字段3='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where id='"  
\+ GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcom=new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
GridView1.EditIndex = -1;  
bind();  
\}

//取消  
protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
\{  
GridView1.EditIndex = -1;  
bind();  
\}

//绑定  
public void bind()  
\{  
string sqlstr = "select \* from 表";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "表");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "id" \};//主键  
GridView1.DataBind();  
sqlcon.Close();  
\}  
\}

前台主要代码：  
... ...  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"  
ForeColor="\#333333" GridLines="None" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit">  
<FooterStyle BackColor="\#990000" Font-Bold="True" ForeColor="White" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
<asp:BoundField DataField="员工性别" HeaderText="性别" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>

3.GridView正反双向排序：  
效果图：点姓名各2次的排序，点其他也一样可以。

//清清月儿的博客[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet]  
SqlConnection sqlcon;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
ViewState\["SortOrder"\] = "身份证号码";  
ViewState\["OrderDire"\] = "ASC";  
bind();  
\}  
\}  
protected void GridView1\_Sorting(object sender, GridViewSortEventArgs e)  
\{  
string sPage = e.SortExpression;  
if (ViewState\["SortOrder"\].ToString() == sPage)  
\{  
if (ViewState\["OrderDire"\].ToString() == "Desc")  
ViewState\["OrderDire"\] = "ASC";  
else  
ViewState\["OrderDire"\] = "Desc";  
\}  
else  
\{  
ViewState\["SortOrder"\] = e.SortExpression;  
\}  
bind();  
\}

public void bind()  
\{  
  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
DataView view = myds.Tables\["飞狐工作室"\].DefaultView;  
string sort = (string)ViewState\["SortOrder"\] + " " + (string)ViewState\["OrderDire"\];  
view.Sort = sort;  
GridView1.DataSource = view;  
GridView1.DataBind();  
sqlcon.Close();  
\}  
\}

前台主要代码：  
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
CellPadding="3" Font-Size="9pt" OnSorting="GridView1\_Sorting" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
<asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>

4.GridView和下拉菜单DropDownList结合：

效果图：

后台代码：  
using System;  
using System.Data;  
using System.Configuration;  
using System.Collections;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
public partial class Default4 : System.Web.UI.Page  
\{  
SqlConnection sqlcon;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
DropDownList ddl;  
if (!IsPostBack)  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataBind();  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
DataRowView mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
if (Convert.ToString(mydrv\["员工性别"\]).Trim() == "True")  
\{  
ddl = (DropDownList)GridView1.Rows\[i\].FindControl("DropDownList1");  
ddl.SelectedIndex = 0;  
\}  
if (Convert.ToString(mydrv\["员工性别"\]).Trim() == "False")  
\{  
ddl = (DropDownList)GridView1.Rows\[i\].FindControl("DropDownList1");  
ddl.SelectedIndex = 1;  
\}  
\}  
sqlcon.Close();  
\}  
\}  
public SqlDataReader ddlbind()  
\{  
string sqlstr = "select distinct 员工性别 from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);  
sqlcon.Open();  
return sqlcom.ExecuteReader();  
\}

前台主要代码：  
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
<asp:TemplateField HeaderText="员工性别">  
<ItemTemplate>  
<asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%\# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">  
</asp:DropDownList>  
</ItemTemplate>  
</asp:TemplateField>  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>

5.GridView和CheckBox结合：

效果图：

后台代码：

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page  
\{  
//清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet]  
SqlConnection sqlcon;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
bind();  
\}  
\}  
protected void CheckBox2\_CheckedChanged(object sender, EventArgs e)  
\{  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
if (CheckBox2.Checked == true)  
\{  
cbox.Checked = true;  
\}  
else  
\{  
cbox.Checked = false;  
\}  
\}  
\}  
protected void Button2\_Click(object sender, EventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
SqlCommand sqlcom;  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
if (cbox.Checked == true)  
\{

string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys\[i\].Value + "'";  
sqlcom = new SqlCommand(sqlstr, sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
\}  
\}  
bind();  
\}  
protected void Button1\_Click(object sender, EventArgs e)  
\{  
CheckBox2.Checked = false;  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
CheckBox cbox = (CheckBox)GridView1.Rows\[i\].FindControl("CheckBox1");  
cbox.Checked = false;  
\}  
\}  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "tb\_Member");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
\}  
\}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"  
CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px">  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:TemplateField>  
<ItemTemplate>  
<asp:CheckBox ID="CheckBox1" runat="server" />  
</ItemTemplate>  
</asp:TemplateField>  
<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>  
  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
<asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2\_CheckedChanged"  
Text="全选" />  
<asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1\_Click" />  
<asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2\_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一：

效果图：

做法：  
双击GridView的OnRowDataBound事件；  
在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
int i;  
//执行循环，保证每条数据都可以更新  
for (i = 0; i < GridView1.Rows.Count; i++)  
\{  
//首先判断是否是数据行  
if (e.Row.RowType == DataControlRowType.DataRow)  
\{  
//当鼠标停留时更改背景色  
e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='\#00A9FF'");  
//当鼠标移开时还原背景色  
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");  
\}  
\}

前台代码：  
<html xmlns="[http://www.w3.org/1999/xhtml][http_www.w3.org_1999_xhtml]" >  
<head runat="server">  
<title>实现鼠标划过改变GridView的行背景色 清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet] </title>  
</head>  
<body>  
<form id="form1" runat="server">  
<div>  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"  
DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
</Columns>  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"  
SelectCommand="SELECT top 5 \[身份证号码\], \[姓名\], \[员工性别\], \[家庭住址\], \[邮政编码\] FROM \[飞狐工作室\]" DataSourceMode="DataReader"></asp:SqlDataSource>  
  
</div>  
</form>  
</body>  
</html>

7.鼠标移到GridView某一行时改变该行的背景色方法二：

效果图：

做法：和上面的一样就是代码不同  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
//int i;  
执行循环，保证每条数据都可以更新  
//for (i = 0; i < GridView1.Rows.Count; i++)  
//\{  
// //首先判断是否是数据行  
// if (e.Row.RowType == DataControlRowType.DataRow)  
// \{  
// //当鼠标停留时更改背景色  
// e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='\#00A9FF'");  
// //当鼠标移开时还原背景色  
// e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");  
// \}  
//\}  
//如果是绑定数据行  
if (e.Row.RowType == DataControlRowType.DataRow)  
\{  
//鼠标经过时，行背景色变  
e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='\#E6F5FA'");  
//鼠标移出时，行背景色变  
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='\#FFFFFF'");  
\}

8.GridView实现删除时弹出确认对话框：

效果图：

实现方法：  
双击GridView的OnRowDataBound事件；  
在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
//如果是绑定数据行  
if (e.Row.RowType == DataControlRowType.DataRow)  
\{  
if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)  
\{  
((LinkButton)e.Row.Cells\[6\].Controls\[0\]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\\"" + e.Row.Cells\[1\].Text + "\\"吗?')");  
\}  
\}

9.GridView实现自动编号：

效果图：

实现方法：  
双击GridView的OnRowDataBound事件；  
在后台的GridView1\_RowDataBound()方法添加代码，最后代码如下所示：  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
//如果是绑定数据行 //清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet]  
if (e.Row.RowType == DataControlRowType.DataRow)  
\{  
鼠标经过时，行背景色变  
//e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='\#E6F5FA'");  
鼠标移出时，行背景色变  
//e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='\#FFFFFF'");

当有编辑列时，避免出错，要加的RowState判断  
//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)  
//\{  
// ((LinkButton)e.Row.Cells\[6\].Controls\[0\]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\\"" + e.Row.Cells\[1\].Text + "\\"吗?')");  
//\}

\}  
if (e.Row.RowIndex != -1)  
\{  
int id = e.Row.RowIndex + 1;  
e.Row.Cells\[0\].Text = id.ToString();  
\}

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
<asp:BoundField DataField="员工性别" HeaderText="性别" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>

10.GridView实现自定义时间货币等字符串格式：

效果图：  
图1-未格式化前

图2-格式化后

解决方法：  
在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

将htmlencode设置为false即可

另外的解决方法为，使用模版列

前台代码：  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"  
DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound">  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
<asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />  
<asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />  
</Columns>  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"  
SelectCommand="SELECT top 5 \[出生日期\], \[起薪\], \[身份证号码\], \[姓名\], \[家庭住址\], \[邮政编码\] FROM \[飞狐工作室\]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式：  
\{0:C\} 货币；  
\{0:D4\}由0填充的4个字符宽的字段中显示整数；  
\{0:000.0\}四舍五入小数点保留第几位有效数字；  
\{0:N2\}小数点保留2位有效数字；\{0:N2\}% 小数点保留2位有效数字加百分号；  
\{0:D\}长日期；\{0:d\}短日期；\{0:yy-MM-dd\} 例如07-3-25；；\{0:yyyy-MM-dd\} 例如2007-3-25

11.GridView实现用“...”代替超长字符串：

效果图：

解决方法：数据绑定后过滤每一行即可  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
DataRowView mydrv;  
string gIntro;  
if (GridView1.PageIndex == 0)  
\{  
mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];//表名  
gIntro = Convert.ToString(mydrv\["家庭住址"\]);//所要处理的字段  
GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
\}  
else  
\{  
mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i + (5 \* GridView1.PageIndex)\];  
gIntro = Convert.ToString(mydrv\["家庭住址"\]);  
GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
\}  
\}

调用的方法：

public string SubStr(string sString, int nLeng)  
\{  
if (sString.Length <= nLeng)  
\{  
return sString;  
\}  
string sNewStr = sString.Substring(0, nLeng);  
sNewStr = sNewStr + "...";  
return sNewStr;  
\}

后台全部代码：  
using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;

public partial class \_Default : System.Web.UI.Page  
\{  
SqlConnection sqlcon;  
SqlCommand sqlcom;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
ViewState\["SortOrder"\] = "身份证号码";  
ViewState\["OrderDire"\] = "ASC";  
bind();  
\}  
\}  
protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
\{  
GridView1.EditIndex = e.NewEditIndex;  
bind();  
\}  
protected void GridView1\_RowDeleting(object sender, GridViewDeleteEventArgs e)  
\{  
string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcon = new SqlConnection(strCon);  
sqlcom = new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
bind();  
\}  
protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
string sqlstr = "update 飞狐工作室 set 姓名='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
\+ GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcom=new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
GridView1.EditIndex = -1;  
bind();  
\}  
protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
\{  
GridView1.EditIndex = -1;  
bind();  
\}  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
DataRowView mydrv;  
string gIntro;  
if (GridView1.PageIndex == 0)  
\{  
mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
gIntro = Convert.ToString(mydrv\["家庭住址"\]);  
GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
\}  
else  
\{  
mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i + (5 \* GridView1.PageIndex)\];  
gIntro = Convert.ToString(mydrv\["家庭住址"\]);  
GridView1.Rows\[i\].Cells\[3\].Text = SubStr(gIntro, 2);  
\}  
\}  
  
sqlcon.Close();  
\}  
public string SubStr(string sString, int nLeng)  
\{  
if (sString.Length <= nLeng)  
\{  
return sString;  
\}  
string sNewStr = sString.Substring(0, nLeng);  
sNewStr = sNewStr + "...";  
return sNewStr;  
\}  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
//如果是绑定数据行  
if (e.Row.RowType == DataControlRowType.DataRow)  
\{  
鼠标经过时，行背景色变  
//e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='\#E6F5FA'");  
鼠标移出时，行背景色变  
//e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='\#FFFFFF'");

\}  
if (e.Row.RowIndex != -1)  
\{  
int id = e.Row.RowIndex + 1;  
e.Row.Cells\[0\].Text = id.ToString();  
\}

\}  
\}

11.GridView一般换行与强制换行：

效果图：

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" ItemStyle-Width="100" />  
gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。  
原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells\[2\].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性：  
protected void Page\_Load(object sender, EventArgs e)  
\{  
//正常换行  
GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");  
//下面这行是自动换行  
GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");  
if (!IsPostBack)  
\{  
bind();//调用数据绑定即可  
\}  
\}  
总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

12.GridView显示隐藏某一列：  
本方案为月儿独创，不同于网上其他方式，我觉得用一个CheckBox更人性化，这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！

效果图：  
图1-开始

图2-点击显示的CheckBox后

解决方案：  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
GridView1.Columns\[3\].Visible = false;//一开始隐藏  
CheckBox1.Checked = false;//如果不这样后面的代码会把他True  
\}

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：  
protected void CheckBox1\_CheckedChanged(object sender, EventArgs e)  
\{  
GridView1.Columns\[3\].Visible=! GridView1.Columns\[3\].Visible;  
Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns\[3\].Visible.ToString());  
\}

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

public partial class \_Default : System.Web.UI.Page  
\{  
SqlConnection sqlcon;  
SqlCommand sqlcom;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
ViewState\["SortOrder"\] = "身份证号码";  
ViewState\["OrderDire"\] = "ASC";  
bind();  
\}  
\}  
protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
\{  
GridView1.EditIndex = e.NewEditIndex;  
bind();  
\}  
protected void GridView1\_RowDeleting(object sender, GridViewDeleteEventArgs e)  
\{  
string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcon = new SqlConnection(strCon);  
sqlcom = new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
bind();  
\}  
protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
string sqlstr = "update 飞狐工作室 set 姓名='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
\+ GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcom=new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
GridView1.EditIndex = -1;  
bind();  
\}  
protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
\{  
GridView1.EditIndex = -1;  
bind();  
\}  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
GridView1.Columns\[3\].Visible = false;  
CheckBox1.Checked = false;  
\}  
protected void CheckBox1\_CheckedChanged(object sender, EventArgs e)  
\{  
GridView1.Columns\[3\].Visible=! GridView1.Columns\[3\].Visible;  
Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns\[3\].Visible.ToString());  
\}  
\}

前台代码：  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd][http_www.w3.org_TR_xhtml1_DTD_xhtml1-transitional.dtd]">

<html xmlns="[http://www.w3.org/1999/xhtml][http_www.w3.org_1999_xhtml]" >  
<head runat="server">  
<title>GridView显示隐藏列 清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet] </title>  
</head>  
<body style="font-size=12px">  
<form id="form1" runat="server">  
<div>  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="用户姓名" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"  
OnCheckedChanged="CheckBox1\_CheckedChanged" Text="显示隐藏家庭住址" /></div>  
</form>  
</body>  
</html>

13.GridView弹出新页面/弹出制定大小位置新窗口：

效果图：

方案一：简单的方法，新窗口不固定大小  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID=\{0\}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >  
</asp:HyperLinkField>  
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" />  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

方案二：精确控制弹出窗口大小位置  
<asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID=\{0\}',null,'width=300,height=200');window.Close();"  
DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考  
弹出窗口大全 [http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx][http_blog.csdn.net_21aspnet_archive_2004_10_25_150231.aspx] 即可！

14.GridView固定表头(不用javascript只用CSS!，很好用)：

效果图：

代码：  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd][http_www.w3.org_TR_xhtml1_DTD_xhtml1-transitional.dtd]">

<html xmlns="[http://www.w3.org/1999/xhtml][http_www.w3.org_1999_xhtml]" >  
<head runat="server">  
<title>GridView固定表头 清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet] </title>  
<style>  
.Freezing  
\{  
  
position:relative ;  
table-layout:fixed;  
top:expression(this.offsetParent.scrollTop);  
z-index: 10;  
\}

.Freezing th\{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;\}  
</style>  
</head>  
<body style="font-size=12px">  
<form id="form1" runat="server">  
<div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1\_RowDeleting" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1\_RowCreated" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" />  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>  
</asp:GridView>  
</div>

</form>  
</body>  
</html>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

15.GridView合并表头多重表头无错完美版（以合并3列3行举例）

效果图：

后台代码：  
using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.Data.SqlClient;  
using System.Drawing;  
public partial class \_Default : System.Web.UI.Page  
\{  
SqlConnection sqlcon;  
SqlCommand sqlcom;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
bind();  
  
\}  
\}  
protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
\{  
GridView1.EditIndex = e.NewEditIndex;  
bind();  
\}  
protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
string sqlstr = "update 飞狐工作室 set 姓名='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
\+ GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcom=new SqlCommand(sqlstr,sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
GridView1.EditIndex = -1;  
bind();  
\}  
protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
\{  
GridView1.EditIndex = -1;  
bind();  
\}  
public void bind()  
\{  
string sqlstr = "select top 10 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
\}

//这里就是解决方案  
protected void GridView1\_RowCreated(object sender, GridViewRowEventArgs e)  
\{  
switch (e.Row.RowType)  
\{  
case DataControlRowType.Header:  
//第一行表头  
TableCellCollection tcHeader = e.Row.Cells;  
tcHeader.Clear();  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[0\].Attributes.Add("rowspan", "3"); //跨Row  
tcHeader\[0\].Attributes.Add("bgcolor", "white");  
tcHeader\[0\].Text = "";  
tcHeader.Add(new TableHeaderCell());  
//tcHeader\[1\].Attributes.Add("bgcolor", "Red");  
tcHeader\[1\].Attributes.Add("colspan", "6"); //跨Column  
tcHeader\[1\].Text = "全部信息</th></tr><tr>";

//第二行表头  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[2\].Attributes.Add("bgcolor", "DarkSeaGreen");  
tcHeader\[2\].Text = "身份证号码";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[3\].Attributes.Add("bgcolor", "LightSteelBlue");  
tcHeader\[3\].Attributes.Add("colspan", "2");  
tcHeader\[3\].Text = "基本信息";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[4\].Attributes.Add("bgcolor", "DarkSeaGreen");  
tcHeader\[4\].Text = "福利";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[5\].Attributes.Add("bgcolor", "LightSteelBlue");  
tcHeader\[5\].Attributes.Add("colspan", "2");  
tcHeader\[5\].Text = "联系方式</th></tr><tr>";

//第三行表头  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[6\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[6\].Text = "身份证号码";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[7\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[7\].Text = "姓名";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[8\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[8\].Text = "出生日期";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[9\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[9\].Text = "薪水";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[10\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[10\].Text = "家庭住址";  
tcHeader.Add(new TableHeaderCell());  
tcHeader\[11\].Attributes.Add("bgcolor", "Khaki");  
tcHeader\[11\].Text = "邮政编码";  
break;  
\}  
\}  
\}

前台：  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd][http_www.w3.org_TR_xhtml1_DTD_xhtml1-transitional.dtd]">

<html xmlns="[http://www.w3.org/1999/xhtml][http_www.w3.org_1999_xhtml]" >  
<head runat="server">  
<title>GridView合并多重表头表头 清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet] </title>  
</head>  
<body >  
<form id="form1" runat="server">  
<div >  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1\_RowCreated" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" />  
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />  
<asp:BoundField DataField="起薪" HeaderText="起薪" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
</div>

</form>  
</body>  
</html>

16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

效果图：

解决方案：主要是绑定后过滤  
GridView1.DataBind();  
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)  
\{  
DataRowView mydrv = myds.Tables\["飞狐工作室"\].DefaultView\[i\];  
string score = Convert.ToString(mydrv\["起薪"\]);  
if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等  
\{  
GridView1.Rows\[i\].Cells\[4\].BackColor = System.Drawing.Color.Red;  
\}  
\}  
sqlcon.Close();

全部后台代码：

public partial class Default7 : System.Web.UI.Page  
\{  
SqlConnection sqlcon;  
SqlCommand sqlcom;  
string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";  
protected void Page\_Load(object sender, EventArgs e)  
\{  
if (!IsPostBack)  
\{  
bind();

\{  
GridView1.Rows\[i\].Cells\[4\].BackColor = System.Drawing.Color.Red;  
\}  
\}  
sqlcon.Close();  
\}  
\}

前台代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd][http_www.w3.org_TR_xhtml1_DTD_xhtml1-transitional.dtd]">

<html xmlns="[http://www.w3.org/1999/xhtml][http_www.w3.org_1999_xhtml]" >  
<head id="Head1" runat="server">  
<title>GridView突出显示某一单元格 清清月儿[http://blog.csdn.net/21aspnet][http_blog.csdn.net_21aspnet] </title>  
</head>  
<body >  
<form id="form1" runat="server">  
<div >  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" />  
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />  
<asp:BoundField DataField="起薪" HeaderText="起薪" DataFormatString="\{0:C\}" HtmlEncode="false"/>  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
</div>

</form>  
</body>  
</html>

17.GridView加入自动求和求平均值小计

效果图：  
解决方案：  
private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
  
if (e.Row.RowIndex >= 0)  
\{  
sum += Convert.ToDouble(e.Row.Cells\[6\].Text);  
\}  
else if (e.Row.RowType == DataControlRowType.Footer)  
\{  
e.Row.Cells\[5\].Text = "总薪水为：";  
e.Row.Cells\[6\].Text = sum.ToString();  
e.Row.Cells\[3\].Text = "平均薪水为：";  
e.Row.Cells\[4\].Text = ((int)(sum / GridView1.Rows.Count)).ToString();  
  
\}  
\}

\}  
\}  
protected void GridView1\_RowEditing(object sender, GridViewEditEventArgs e)  
\{  
GridView1.EditIndex = e.NewEditIndex;  
bind();  
\}  
protected void GridView1\_RowUpdating(object sender, GridViewUpdateEventArgs e)  
\{  
sqlcon = new SqlConnection(strCon);  
string sqlstr = "update 飞狐工作室 set 姓名='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[1\].Controls\[0\])).Text.ToString().Trim() + "',家庭住址='"  
\+ ((TextBox)(GridView1.Rows\[e.RowIndex\].Cells\[3\].Controls\[0\])).Text.ToString().Trim() + "' where 身份证号码='"  
\+ GridView1.DataKeys\[e.RowIndex\].Value.ToString() + "'";  
sqlcom = new SqlCommand(sqlstr, sqlcon);  
sqlcon.Open();  
sqlcom.ExecuteNonQuery();  
sqlcon.Close();  
GridView1.EditIndex = -1;  
bind();  
\}  
protected void GridView1\_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)  
\{  
GridView1.EditIndex = -1;  
bind();  
\}  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
\}  
private double sum = 0;//取指定列的数据和  
protected void GridView1\_RowDataBound(object sender, GridViewRowEventArgs e)  
\{  
  
if (e.Row.RowIndex >= 0)  
\{  
sum += Convert.ToDouble(e.Row.Cells\[6\].Text);  
\}  
else if (e.Row.RowType == DataControlRowType.Footer)  
\{  
e.Row.Cells\[5\].Text = "总薪水为：";  
e.Row.Cells\[6\].Text = sum.ToString();  
e.Row.Cells\[3\].Text = "平均薪水为：";  
e.Row.Cells\[4\].Text = ((int)(sum / GridView1.Rows.Count)).ToString();  
  
\}  
\}  
\}  
前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1\_RowEditing"  
OnRowUpdating="GridView1\_RowUpdating" OnRowCancelingEdit="GridView1\_RowCancelingEdit" BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1\_RowDataBound" ShowFooter="True" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" />  
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
<asp:BoundField DataField="起薪" HeaderText="起薪" />  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>

18.GridView数据导入Excel/Excel数据读入GridView

效果图：

解决方案：  
页面增加一个按钮，单击事件添加如下方法：  
protected void Button1\_Click(object sender, EventArgs e)  
\{  
Export("application/ms-excel", "学生成绩报表.xls");  
\}

private void Export(string FileType, string FileName)  
\{  
Response.Charset = "GB2312";  
Response.ContentEncoding = System.Text.Encoding.UTF7;  
Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());  
Response.ContentType = FileType;  
this.EnableViewState = false;  
StringWriter tw = new StringWriter();  
HtmlTextWriter hw = new HtmlTextWriter(tw);  
GridView1.RenderControl(hw);  
Response.Write(tw.ToString());  
Response.End();  
\}  
//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内  
public override void VerifyRenderingInServerForm(Control control)  
\{  
\}  
还有由于是文件操作所以要引入名称空间IO和Text

\}  
\}  
  
public void bind()  
\{  
string sqlstr = "select top 5 \* from 飞狐工作室";  
sqlcon = new SqlConnection(strCon);  
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);  
DataSet myds = new DataSet();  
sqlcon.Open();  
myda.Fill(myds, "飞狐工作室");  
GridView1.DataSource = myds;  
GridView1.DataKeyNames = new string\[\] \{ "身份证号码" \};  
GridView1.DataBind();  
sqlcon.Close();  
\}

protected void Button1\_Click(object sender, EventArgs e)  
\{  
Export("application/ms-excel", "学生成绩报表.xls");  
\}

private void Export(string FileType, string FileName)  
\{  
Response.Charset = "GB2312";  
Response.ContentEncoding = System.Text.Encoding.UTF7;  
Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());  
Response.ContentType = FileType;  
this.EnableViewState = false;  
StringWriter tw = new StringWriter();  
HtmlTextWriter hw = new HtmlTextWriter(tw);  
GridView1.RenderControl(hw);  
Response.Write(tw.ToString());  
Response.End();  
\}  
public override void VerifyRenderingInServerForm(Control control)  
\{  
\}  
  
\}

前台：  
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3"  
BackColor="White" BorderColor="\#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >  
<FooterStyle BackColor="White" ForeColor="\#000066" />  
<Columns>  
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />  
<asp:BoundField DataField="姓名" HeaderText="姓名" />  
<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />  
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />  
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />  
<asp:BoundField DataField="起薪" HeaderText="起薪" />  
  
</Columns>  
<RowStyle ForeColor="\#000066" />  
<SelectedRowStyle BackColor="\#669999" Font-Bold="True" ForeColor="White" />  
<PagerStyle BackColor="White" ForeColor="\#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>  
<HeaderStyle BackColor="\#006699" Font-Bold="True" ForeColor="White" />  
</asp:GridView>  
<asp:Button ID="Button1" runat="server" OnClick="Button1\_Click" Text="导出" />

读取Excel数据的代码：这个很简单的  
private DataSet CreateDataSource()  
\{  
string strCon;  
strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";  
OleDbConnection olecon = new OleDbConnection(strCon);  
OleDbDataAdapter myda = new OleDbDataAdapter("SELECT \* FROM \[Sheet1$\]", strCon);  
DataSet myds = new DataSet();  
myda.Fill(myds);  
return myds;  
\}  
protected void Button1\_Click(object sender, EventArgs e)  
\{  
GridView1.DataSource = CreateDataSource();  
GridView1.DataBind();  
\}

由于时间关系，这个文章先到此。有时间再写，其实还有很多技巧，不过我觉得如果能融汇贯通应该可以举一反三。

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本文来自CSDN博客，转载请标明出处：[http://blog.csdn.net/21aspnet/archive/2007/03/25/1540301.aspx][http_blog.csdn.net_21aspnet_archive_2007_03_25_1540301.aspx]

[http_blog.csdn.net_21aspnet]: http://blog.csdn.net/21aspnet
[http_www.w3.org_1999_xhtml]: http://www.w3.org/1999/xhtml
[http_www.w3.org_TR_xhtml1_DTD_xhtml1-transitional.dtd]: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
[http_blog.csdn.net_21aspnet_archive_2004_10_25_150231.aspx]: http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx
[www.21kaiyun.com]: http://www.21kaiyun.com
[http_blog.csdn.net_21aspnet_archive_2007_03_25_1540301.aspx]: http://blog.csdn.net/21aspnet/archive/2007/03/25/1540301.aspx