ComponentOne 控件套包中提供了丰富的图表类型,包括:曲线图、柱状图、条形图、饼图、雷达图等共计80余中2D和3D图表。用户可以通过图表设计器来设计图表样式,同时,可以通过代码来设置图表的所有属性,本文主要讲解如何通过代码来动态创建 C1Chart for WinForms 控件。
首先,创建一个WinForms应用程序,从工具箱中将C1Chart添加到窗体上,然后,在窗体代码中添加以下代码:
private void Form1_Load(object sender, System.EventArgs e){c1Chart1.UseAntiAliasedGraphics = true;ChartGroup cg = c1Chart1.ChartGroups.Group0;// 设置图表类型为圆环图cg.ChartType = Chart2DTypeEnum.Pie;// 圆环图的半径cg.Pie.InnerRadius = 30;// 创建图表系列ChartDataSeriesCollection cdsc = cg.ChartData.SeriesList;foreach(ChartDataSeries cds in cdsc){// 获取第一个系列的位置if(cds.Label == "series 0")cds.Offset = 30;if(cds.Length > 1)cds.PointData.Length = 1;// 饼图区域的透明度cds.FillStyle.Alpha = 50;// 工具提示显示的文本cds.TooltipText = "Slice {#ISERIES} ({%YVAL:0.00%})";// 为每个区域增加标签文本DataLabel dlab = cds.DataLabel;dlab.Compass = LabelCompassEnum.RadialText;dlab.Offset = -2;dlab.Text = "{%YVAL:0.00%}";dlab.Style.BackColor = Color.Transparent;dlab.Style.Border.BorderStyle = BorderStyleEnum.None;dlab.Visible = true;}View3D v = c1Chart1.ChartArea.PlotArea.View3D;v.Depth = 10;v.Elevation = 45;// 开启图表工具提示c1Chart1.ToolTip.Enabled = true;// 开启鼠标移动高亮显示cg.ChartData.HighLight.Activation = HighlightActivationEnum.MouseOver;// 设置图例c1Chart1.Legend.Visible = true;// 设置颜色和边线Style sty = c1Chart1.Style;sty.GradientStyle = GradientStyleEnum.HorizontalCenter;sty.BackColor = Color.White;sty.BackColor2 = Color.LightBlue;Border bord = sty.Border;bord.BorderStyle = BorderStyleEnum.None;bord.Rounding.All = 10;bord.Thickness = 3;bord.Color = Color.Blue;// 设置图列区域的样式sty = c1Chart1.Legend.Style;sty.BackColor = Color.Transparent;sty.GradientStyle = GradientStyleEnum.None;// 设置图表区域样式sty = c1Chart1.ChartArea.Style;sty.BackColor = Color.Transparent;sty.GradientStyle = GradientStyleEnum.None;Form1_Resize(null, null);}
源码下载:VS2010 + C1 Studio for WinForms 2013V1