Winform中跨窗体设置ZedGraph的属性并刷新曲线图

叁歲伎倆 2024-04-19 08:42 69阅读 0赞

## 场景 ##

在使用ZedGraph时，经常有图形选项功能，设置曲线图相关属性后，

点击保存会设置另一个窗体的属性并刷新图。

### 效果 ###

![20190916095728649.gif][]

## 实现 ##

在设置图形的选项的类中，声明委托和事件

//委托的定义
    public delegate void ReloadPanelDelegete();
    //事件声明
    public static event ReloadPanelDelegete reloadPanelEvent;

在当前窗体的确定按钮的点击事件中

将相关曲线图的Y轴以及X轴的相关属性存到xml配置文件中，然后调用方法

去刷新曲线图，使其重新加载。

private void confirmbButton_Click(object sender, EventArgs e)
            {
                #region 获取X轴的属性并赋值给XAxisModel
                //对X轴的属性配置文件进行保存
                //根据控件的 System.Windows.Forms.Control.Name 属性搜索控件并生成由所有匹配项组成的数组。
                //如果搜索所有子控件，则为 true；否则为 false。
                XAxisModel xAxisModel = new XAxisModel();
                //获取标题
                RadioGroup radioGroupX = this.Controls.Find("radioGroupX", true)[0] as RadioGroup;
                xAxisModel.Title = radioGroupX.Text;
                //获取下限
                TextEdit minTextEditX = this.Controls.Find("minTextEditX", true)[0] as TextEdit;
                xAxisModel.Min = Double.Parse(minTextEditX.Text);
                //获取上限
                TextEdit maxTextEditX = this.Controls.Find("maxTextEditX", true)[0] as TextEdit;
                xAxisModel.Max = Double.Parse(maxTextEditX.Text);
                //获取颜色
                ColorEdit colorEditX = this.Controls.Find("colorEditX", true)[0] as ColorEdit;
                xAxisModel.Color = colorEditX.Text;
                #endregion
    
                #region 将X轴的属性存到配置文件中
                Boolean isWriteX = ChartOptionHelper.setXAxisAttribute(xAxisModel);
                #endregion
    
                #region 获取Y轴属性并赋值给List<YAxisModel>
                List<YAxisModel> yAxisModelList = new List<YAxisModel>();
                for (int i = 1; i <= yAxisCount; i++)
                {
                    YAxisModel yAxisModel = new YAxisModel();
                    //获取标题
                    RadioGroup radioGroupY = this.Controls.Find("radioGroupY" + i, true)[0] as RadioGroup;
                    yAxisModel.Title = radioGroupY.Text;
                    //获取下限
                    TextEdit minTextEditY = this.Controls.Find("minTextEditY" + i, true)[0] as TextEdit;
                    yAxisModel.Min = Double.Parse(minTextEditY.Text);
                    //获取上限
                    TextEdit maxTextEditY = this.Controls.Find("maxTextEditY" + i, true)[0] as TextEdit;
                    yAxisModel.Max = Double.Parse(maxTextEditY.Text);
                    //获取颜色
                    ColorEdit colorEditY = this.Controls.Find("colorEditY" + i, true)[0] as ColorEdit;
                    yAxisModel.Color = colorEditY.Text;
                    yAxisModelList.Add(yAxisModel);
                }
                #endregion
    
                #region 将Y轴的属性存到配置文件中
                Boolean isWriteY = ChartOptionHelper.setYAxisAttribute(yAxisModelList);
                #endregion
    
                #region 弹出对话框并设置点击确定之后的事件
                if (isWriteX == true && isWriteY == true)
                {
                    if (this.Confirm("保存成功") == DialogResult.OK)
                    {
                        //将是否第一次打开软件的标识量改为0，,下次打开直接读取配置文件
                        Global.isFirstOpen = 0;
                        if (reloadPanelEvent != null)
                        {
                            reloadPanelEvent();
                        }
                        this.Dispose();
                    }
                }
                else
                {
                    DevExpress.XtraEditors.XtraMessageBox.Show("保存失败", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
                }
                #endregion
    
            }

然后在曲线图显示的窗体中订阅事件

Dialog.ChartOption.reloadPanelEvent += new Dialog.ChartOption.ReloadPanelDelegete(reloadPanel);

其中左边的类是上面图形选项的类，右边的类是窗体显示的类

然后在窗体显示的类中新建图上面ReloadPanelDelegete的参数同名的方法reloadPanel实现曲线图的刷新。

public void reloadPanel()
            {
                //声明pane对象
                GraphPane myPane = new GraphPane();
                //获取控件的Pane
                myPane = this.zedGraphControl1.GraphPane;
                #region 从配置文件中加载并设置X轴属性
                //获取X轴属性
                XAxisModel xAttribute = ChartOptionHelper.getXAxisAttribute(Global.RADIO_GROUP_YAXIS_FILEPATH_X);
                myPane.XAxis.Title.Text = xAttribute.Title;
                myPane.XAxis.Color = System.Drawing.ColorTranslator.FromHtml(xAttribute.Color);
                myPane.XAxis.Scale.Min = xAttribute.Min;
                myPane.XAxis.Scale.Max = xAttribute.Max;
                #endregion
              
                //获取配置文件加载的Y轴的list
                List<YAxisModel> yLoadList = ChartOptionHelper.getYAxisList(Global.RADIO_GROUP_YAXIS_FILEPATH);
                //用来存储标题不为空的list
                List<YAxisModel> yList = new List<YAxisModel>();
                foreach (YAxisModel yAxisModel in yLoadList)
                {
                    if (!yAxisModel.Title.Equals(""))
                    {
                        yList.Add(yAxisModel);
                    }
                }
                //根据数量生成Y轴
                //说明选择全是空标题
                if (yList.Count == 0)
                {
                    //设置X轴标题
                    myPane.XAxis.Title.Text = "时间";
                    //X轴线的颜色
                    myPane.XAxis.Color = Color.Black;
                    //设置第一条Y轴标题
                    myPane.YAxis.Title.Text = "Y1";
                    this.zedGraphControl1.Invalidate();
                }
                else if (yList.Count == 1)
                {
                    //设置第一条Y轴标题
                    myPane.YAxis.Title.Text = yList[0].Title;
                    myPane.YAxis.Scale.Min = yList[0].Min;
                    myPane.YAxis.Scale.Max = yList[0].Max;
                    myPane.YAxis.Color = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    myPane.Y2Axis.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    myPane.YAxis.Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    this.zedGraphControl1.Invalidate();
                }
                else if (yList.Count == 2)
                {
                    //设置第一条Y轴标题
                    myPane.YAxis.Title.Text = yList[0].Title;
                    myPane.YAxis.Scale.Min = yList[0].Min;
                    myPane.YAxis.Scale.Max = yList[0].Max;
                    myPane.YAxis.Color = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    myPane.YAxis.Color = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    myPane.Y2Axis.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    //第二条Y轴标题
                    myPane.Y2Axis.Title.Text = yList[1].Title;
                    //第二条Y轴下限
                    myPane.Y2Axis.Scale.Min = yList[1].Min;
                    //第二条Y轴上限
                    myPane.Y2Axis.Scale.Max = yList[1].Max;
                    //设置颜色
                    myPane.Y2Axis.Color = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //设置刻度线字体颜色
                    myPane.Y2Axis.Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //设置标题字体颜色
                    myPane.Y2Axis.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //标题大小
                    myPane.Y2Axis.Title.FontSpec.Size = Global.FONT_SIZE;
                    myPane.Y2Axis.Title.FontSpec.Family = Global.FONT_FAMILY;
                    myPane.Y2Axis.Title.FontSpec.IsBold = false;
                    //显示小刻度 是false则看不到效果
                    myPane.Y2Axis.MinorGrid.IsVisible = true;
                    //设置Y轴刻度线字体大小
                    myPane.Y2Axis.Scale.FontSpec.Size = Global.FONT_SIZE;
                    //让第二条Y轴显示
                    myPane.Y2Axis.IsVisible = true;
                    this.zedGraphControl1.Invalidate();
                }
                //否则就是新增第三条及以上
                else
                {
                    //设置第一条Y轴标题
                    myPane.YAxis.Title.Text = yList[0].Title;
                    myPane.YAxis.Scale.Min = yList[0].Min;
                    myPane.YAxis.Scale.Max = yList[0].Max;
                    myPane.YAxis.Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    myPane.YAxis.Color = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    //第二条Y轴标题
                    myPane.Y2Axis.Title.Text = yList[1].Title;
                    myPane.Y2Axis.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[0].Color);
                    //第二条Y轴下限
                    myPane.Y2Axis.Scale.Min = yList[1].Min;
                    //第二条Y轴上限
                    myPane.Y2Axis.Scale.Max = yList[1].Max;
                    //设置颜色
                    myPane.Y2Axis.Color = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //设置刻度线字体颜色
                    myPane.Y2Axis.Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //设置标题字体颜色
                    myPane.Y2Axis.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[1].Color);
                    //标题大小
                    myPane.Y2Axis.Title.FontSpec.Size = Global.FONT_SIZE;
                    myPane.Y2Axis.Title.FontSpec.Family = Global.FONT_FAMILY;
                    myPane.Y2Axis.Title.FontSpec.IsBold = false;
                    //显示小刻度 是false则看不到效果
                    myPane.Y2Axis.MinorGrid.IsVisible = true;
                    //设置Y轴刻度线字体大小
                    myPane.Y2Axis.Scale.FontSpec.Size = Global.FONT_SIZE;
                    //让第二条Y轴显示
                    myPane.Y2Axis.IsVisible = true;
                    #region 第一次加载其他的Y轴，要在Y轴的List中add进Y轴
                    //说明是第一次加载其他的Y轴，要在Y轴的List中add进Y轴
                    if (myPane.YAxisList.Count == 1)
                    {
                        //循环剩下的Y轴并显示
                        for (int i = 2; i < yList.Count; i++)
                        {
                            YAxis yAxisNew = new YAxis(yList[i].Title);
                            yAxisNew.Scale.Min = yList[i].Min;
                            yAxisNew.Scale.Max = yList[i].Max;
                            //设置Y轴颜色
                            yAxisNew.Color = System.Drawing.ColorTranslator.FromHtml(yList[i].Color);
                            //设置刻度线字体颜色
                            yAxisNew.Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[i].Color);
                            //设置标题字体颜色
                            yAxisNew.Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[i].Color);
                            yAxisNew.Type = AxisType.Text;
                            //显示小刻度 是false则看不到效果
                            yAxisNew.MinorGrid.IsVisible = true;
                            //关闭相反的tics，使y2 tics不会显示在y轴上
                            yAxisNew.MajorTic.IsInside = true;
                            yAxisNew.MinorTic.IsInside = true;
                            yAxisNew.MajorTic.IsOpposite = true;
                            yAxisNew.MinorTic.IsOpposite = true;
                            yAxisNew.Title.FontSpec.Family = Global.FONT_FAMILY;
                            yAxisNew.Title.FontSpec.Size = Global.FONT_SIZE;
                            yAxisNew.Title.FontSpec.IsBold = false;
                            //设置Y轴刻度线字体大小
                            yAxisNew.Scale.FontSpec.Size = Global.FONT_SIZE;
                            //添加到Y轴的list
                            myPane.YAxisList.Add(yAxisNew);
                        }
                    }
                    #endregion
                    else
                    {
                        //循环剩下的Y轴并显示
                        for (int i = 1; i < myPane.YAxisList.Count; i++)
                        {
                            myPane.YAxisList[i].Scale.Min = yList[i+1].Min;
                            myPane.YAxisList[i].Scale.Max = yList[i + 1].Max;
                            //设置Y轴颜色
                            myPane.YAxisList[i].Color = System.Drawing.ColorTranslator.FromHtml(yList[i+1].Color);
                            //设置刻度线字体颜色
                            myPane.YAxisList[i].Scale.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[i + 1].Color);
                            //设置标题字体颜色
                            myPane.YAxisList[i].Title.FontSpec.FontColor = System.Drawing.ColorTranslator.FromHtml(yList[i + 1].Color);
                            myPane.YAxisList[i].Type = AxisType.Text;
                            //显示小刻度 是false则看不到效果
                            myPane.YAxisList[i].MinorGrid.IsVisible = true;
                            //关闭相反的tics，使y2 tics不会显示在y轴上
                            myPane.YAxisList[i].MajorTic.IsInside = true;
                            myPane.YAxisList[i].MinorTic.IsInside = true;
                            myPane.YAxisList[i].MajorTic.IsOpposite = true;
                            myPane.YAxisList[i].MinorTic.IsOpposite = true;
                            myPane.YAxisList[i].Title.FontSpec.Family = Global.FONT_FAMILY;
                            myPane.YAxisList[i].Title.FontSpec.Size = Global.FONT_SIZE;
                            myPane.YAxisList[i].Title.FontSpec.IsBold = false;
                            //设置Y轴刻度线字体大小
                            myPane.YAxisList[i].Scale.FontSpec.Size = Global.FONT_SIZE;
                           
                        }
                    }
                    this.zedGraphControl1.Invalidate();
                }
            }

注：

1.mypane是ZedGraph的面板，其默认是有一条Y轴对象的，为myPane.YAxis

2.如果要显示第二条Y轴，ZedGraph是默认存在第二条Y轴的，为myPane.Y2Axis，不过就是默认不显示，要使其显示，需要

myPane.Y2Axis.IsVisible = true;

3.如果是三条以上Y轴的话，就要使用

myPane.YAxisList.Add(yAxisNew);

加入其Y轴的list。

4.这里的需求是首次打开默认加载一条Y轴，所以在首次加载时判断

myPane.YAxisList.Count == 1，其自己的List是否为1，为1则代表是首次加载，下次再设置并加载时，其list就不为1了。所以需要是设置，而不是再往list中新增了。

5.需要注意的是，如果显示4条Y轴的话，其myPane.YAxisList.Count为3，,一条是不算在内的。

6.刷新曲线图的代码

this.zedGraphControl1.Invalidate();

注：

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