DEV学习知识点

「爱情、让人受尽委屈。」 2022-05-29 10:07 315阅读 0赞

### 1. **导出pdf乱码** ###

DevExpress.Utils.AppearanceObject.DefaultFont = new System.Drawing.Font(“宋体”, 9);

## **GridControl** ##

### 2. **设置样式** ###

gridViewTest.Appearance.OddRow.BackColor = Color.Write; // 设置奇数行颜色

gridViewTest.OptionsView.EnableAppearanceOddRow = true; // 同时使用有效

gridViewTest.Appearance.EvenRow.BackColor = Color.Orange; // 设置偶数行颜色

gridViewTest.OptionsView.EnableAppearanceEvenRow = true; // 同时使用有效

// 设置每次选择一行并且不能被编辑

gridViewTest.FocusRectStyle = DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;

gridViewTest.OptionsBehavior.Editable = false;  // 列是否可编辑

gridViewTest.OptionsSelection.EnableAppearanceFocusedCell = false;

gridViewTest.IndicatorWidth = 40 ;

gridViewTest.OptionsCustomization.AllowColumnMoving = false; // 让各列头禁止移动

gridViewTest.OptionsCustomization.AllowSort = false; // 让各列头禁止排序

gridViewTest.OptionsCustomization.AllowColumnResizing = false; // 禁止各列头改变列宽

gridViewTest.OptionsBehavior.AutoExpandAllGroups = true; // 自动展开组

gridViewTest.OptionsCustomization.AllowFilter = true; // 是否允许列筛选

gridViewTest.OptionsCustomization.AllowGroup = true; // 是否允许列分组

gridViewTest.OptionsCustomization.AllowQuickHideColumns = true; // 是否允许列快速隐藏

gridViewTest.OptionsCustomization.AllowRowSizing= true; // 是否允许设置行高

gridViewTest.OptionsMenu.EnableColumnMenu = true; // 点击列头是否显示菜单

gridViewTest.OptionsMenu.EnableFooterMenu = true; // 点击脚面板是否显示菜单

gridViewTest.OptionsMenu.EnableGroupPanelMenu = true;// 点击组面板是否显示菜单

gridViewTest.OptionsSelection.EnableAppearanceFocusedCell = true; // 点击行时，是否显示列的样式

gridViewTest.OptionsSelection.EnableAppearanceFocusedRow = true; //点击行时，是否显示行的样式

gridViewTest.OptionsSelection.MultiSelect = true; // 是否允许多选

gridViewTest.OptionsSelection.MultliSelectMode = true; // 选中方式是行选还是列选

gridViewTest.OptionsView.AllowCellMerge = true; // 是否合并相同内容的单元格，（上下合并）

gridViewTest.OptionsView.AutoCalcPreviewLineCount = true; // 是否计算备注列行数

gridViewTest.OptionsView.ColumnAutoWidth = true; // 是否自动计算各个列宽度

gridViewTest.OptionsView.ShowColumnHeaders = true; // 是否显示列标题

gridViewTest.OptionsView.ShowFooter = true; // 是否显示脚面板

gridViewTest.OptionsView.ShowGroupPanel = true; // 是否显示组面板

gridViewTest.OptionsView.ShowIndicator = true; // 是否显示指示器

gridViewTest.OptionsView.ShowPreview = truel; // 是否显示备注

// 单击记录整行选中

gridViewTest.OptionsBehavior.EditorShowMode = Click;

### 3. **事件** ###

// 显示行号

gridViewTest\_CustomDrawRowIndicator(object sender,  DevExpress.XtraGrid. Views.Grid.RowIndicatorCustomDrawEventArgs e)\{

e.Appearance.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Far;

If(e.Info.IsRowIndicator)\{

If(e.RowHandle >= 0)\{

e.Info.DisplayText = (e.RowHandle + 1).ToString();

else if(e.RowHandle < 0 && e.RowHandle > -1000)\{

e.Info.Appearance.BackColor = System.Drawing.Color.AntiqueWhite;

e.Info.DisplayText = “G” + e.RowHandle.ToString();

// 行样式设置

gridViewTest\_RowCellStyle(object sender,  DevExpress.XtraGrid.Views.Grid. RowCellStyleEventArgs e )\{

If(e.RowHandle == gridViewTest.FocusedRowHandle)\{

e.Appearance.BackColor = Color.CadetBlue;

// 鼠标滚轮事件

gridViewTest\_MouseWheel(object sender, MouseEventArgs e)\{

DevExpress.XtraGrid.Grid.GridView view = sender as DevExpress.XtraGrid.Grid.GridView;

view.CloseEditor();

If(e.Delta < 0)\{

view.MoveNext();

else if(e.Delta > 0)\{

view.MovePrev();

DevExpress.Utils.DXMouseEventArgs.GetMouseArgs(e).Handled = true;

// 导出文件

gridControlText.ExportToText(fileName + “\\\\test.txt”);

gridControlText.ExportToHtml(fileName + “\\\\test.html”);

gridControlText.ExportToPdf(fileName + “\\\\test.pdf”);

gridControlText.ExportToXls(fileName + “\\\\test.xls”);

gridControlText.ExportToCsv(fileName + “\\\\test.csv”);

// 自定义显示事件

gridViewTest\_CustomColumnDisplayText(object sender,  DevExpress.XtraGrid.Views.Base.CustomColumnDisplayTextEventArgs e)\{

If(e.Column.FieldName == “sex”)\{

Switch(e.Value.ToString().Trim())\{

Case “1”:

E.DisplayText = “男”;

Break;

Case “0”:

E.DisplayText = “女”;

Break;

### 4. **动态操作** ###

// 动态添加gridView

DevExpress.XtraGrid.Views.Grid.GridView gridViewTest = new DevExpress.XtraGrid.Views.Grid.GridView();

This.gridControlTest.ViewCollection.AddRange(new DevExpress.XtraGrid.Views.Base.BaseView\[\] \{gridViewTest\});

// 动态添加列

Foreach(var column in listColumns)\{

DevExpress.XtraGrid.Columns.GridColumn Col = new DevExpress.XtraGrid.Columns.GridColumn();

Col.FileName = column.FiledCode;

Col.Caption = column.FiledName ;

Col.Visible = false;

Col.VisibleIndex = gridViewTest.Columns.Count;

gridViewTest.Columns.Add(Col);

GridViewTest.GridControl = this.gridControlTest;

gridViewTest.Name = “test”;

gridControlTest.MainView = gridViewTest;

// 新增一条记录

gridViewTest.AddNewRow(); || 实现gridViewTest\_InitNewRow 事件

// 解决记录能获取但是没有显示的问题

gridViewTest.populateColumns();

// 解决行中选中不编辑问题

gridViewTest.OptionsBehavior.EnableShowMode = Click;

gridViewTest.OptionsBehavior.Editable = false;

// 如何禁用gridControl中单击弹出右键菜单

gridControlTest.OptionsMenu.EnableColumnMenu = true;

// 查询0记录时自定义字符提示

gridViewTest\_CustomDrawEmptyForeground(object sender,  CustomDrawEventArgs e)\{

If(this.\_flag)\{

If(this.gridViewTest.RowCount == 0)\{

String str = “没有查询到你所想要的数据”;

Font f = new Font(“宋体”, 10, FontStyle.Bold);

Rectangle r = new Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width -5, e.Bounds.Height - 5);

e.Graphics.DrawStrImg(str, r, f);

// 如何显示水平滚动条

This.gridViewTest.OptionsView.ColumnAutoWidth = false;

// 如何定位到第一条数据/记录

This.gridViewTest.MoveFirst();

// 如何定位到下一条数据/记录

This.gridViewTest.MoveNext();

// 如何定位到最后一条数据/记录

This.gridViewTest.MoveLast();

// 设置成一次选择一行，并且不能被编辑

This.gridViewTest.FocusRectStyle =

DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;

This.gridViewTest.OptionsBehavior.Editable = false;

This.gridViewTest.OptionsSelection.EnabledAppearaceFocusedCell = false;

// 如何显示行号

This.gridViewTest.IndicatorWidth = 40;

// 显示行号的序号

gridViewTest\_CustomDrawRowIndicator(object sender, RowIndicatorCustomDrawEventArgs e)\{

If(e.Info.IsRowIndicator && e.RowHandle >= 0)\{

E.Info.DisplayText = (e.RowHandle + 1).ToString();

### 5. **绑定** ###

// 绑定datatable

gridControlTest.DataSource = dt;

// 绑定dataset

gridControlTest.DataSource = ds;

gridControlTest.DataMember = “表名”;

## **Combobox** ##

comboboxTest.TextEditStyle = DisableTextEditor;

comboboxTest.Cursor = Hand;

## **NavBarControl** ##

// 如何在每一个navBarGroup 中添加自己想要的控件

GroupStyle:  ControlContainer

// 如何设置navBarGroup有滚动条

SkinExplorerBarViewScrollStyle: ScrollBar

// 设置navBarGroup 的 PanelStyleName:SkinNavigationPane

## **ToolTipControl** ##

// 如何设置显示时间的长短

This.toolTipControlTest.AutoPopDelay = 2000;

// 如何显示提示

ToolTipControllerShowEventArgs t = this.toolTipControllerTest.CreateShowArgs();

This.toolTipControlTest.SetToolTip(this.sbtnYes, “请选择一条记录”);

This.toolTipControlTest.SetTitle(this.sbtnYes, “提示”);

This.ToolTipControlTest.SetToolTipIconType(this.sbtnYes, DevExpress.Utils.ToolTipIconType.

Excalamation);

This.toolTipControlTest.ShowBeak = true;

This.toolTipControlTest.ShowShadow = true;

This.ToolTIpControlTest.Rounded = true;

This.ToolTipControlTest.ShowHint(“请选择一条记录”,”提示”);

Args.ToolTip = “请选择一条记录”;

Args.Title = “提示”;

// 如何设置边框的颜色

This.toolTipControlTest.Appearance.BorderColor = Color.Red;

## **TextEdit** ##

如何设置TextEdit为多行，可拉伸

This.TextEditTest.Properties.AutoHeight = false;

## **LayoutControl** ##

// 设置layoutItem为隐藏

This.LayoutControlItemTest.Visibility = Never;

## **TreeList** ##

// 隐藏TreeList的列头

This.TreeListTest.OptionsView.ShowColumns = false;

// 如何让TreeList的每个节点高亮显示

treeListView\_CustomDrawNodeCell(object sender, DevExpress.XtraTreeList.CustomDrawNodeCellEventArgs e)\{

TreeList node = sender as TreeList;

If(e.Node == node.FocusedNode)\{

E.Graphics.FillRectangle(System.Brushes.Window, e.Bounds);

Rectangle r = new Rectangle(e.EditViewInfo.ContentRect.Left,

E.EditViewInfo.ContentRect.Top);

Convert.ToInt32(e.Graphics.MeasureString(e.CellText, treeListTest.Font).Width + 1);

E.Graphics.FillRectangle(System.Brushes.HighLight, r);

E.Graphics.DrawString(e.CellText, treeListTest.Font, System.Brushes.HighlightText, r);

E.handled = true;

## **pictureEdit** ##

// 禁用pictureEdit的右键菜单

This.pictureEditTest.Properties.ShowMenu = false;

## **//其他** ##

### 1. **gridControl** ###

// 改变grid的样式

DevExpress.XtraGrid.Design.XAppearances xpp;

Xpp = new DevExpress.XtraGrid.Design.XAppearances(System.Environment.GetFolderPath( Sysetem. Enviroment.SpecialFolder.System ) + “\\\\DevExpress.XtraGrid.Appearances.xml”);

Xpp.LoadScheme(“样式名字”, gridControlTest.MainView);

2. 选择单元设置和取所选的值

gridViewTest.OptionsSelection.MultiSelect = ceMultiSelect.Checked; // 多行选择

gridViewTest.OptionsSelection.MultiSelectMode = GridMultiSelectMode.CellSelect;

gridViewTest.OptionsSelection.MultiSelectMode = GridMultiSelectMode.RowSelect;

3. gridView的控制

// 取当前选中的值

String GetSelectedRows(GridView view)\{

String ret = “”;

Int index = -1;

If(view.OptionsSelection.MultiSelectMode == GridMultiSelectMode.RowSelect)\{

Foreach(int i in gridViewTest.GetSelectRows())\{

DataRow dr = gridViewTest.GetDataRow(i);

If(ret != “”) ret += “\\r\\n”;

String.format(ret, “Company Name:\{0\} (\#\{1\})”, row\[“CompanyName”\], i);

Else \{

Foreach(GridCell cell in view.GetSelectedCells())\{

If(rowIndex != cell.RowHandle)\{

If(ret != “”) ret += “\\r\\n”;

String.Format(ret, “Row \#\{0\}”, cell.RowHandle);

View.GetRowCellDisplayText(cell.RowHandle, cell.Column);

rowIndex = cell.RowHandle;

Return ret ;

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