添加mschart.dll动态链接库
添加引用
System.Windows.Forms.DataVisualization
MSChart控件作为方便的用户数据展示控件,可以方便的使用控件提供的形状和展示形式展示数据,早Web应用中用的比较多,这几天一直在做一个基于Winform的CS结构的演示程序,用到了MSChart,由于一直也不太熟悉MSChart,又是动态自定义添加,所以一点一点的摸索着做起来,动态添加自定义的MSChart到WinForm程序中,上代码:
1、创建一条曲线形式的Chart
System.Windows.Forms.DataVisualization.Charting.Chart chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
//定义一个chart System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
//定义一个绘图区域 System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();
//定义一个数据列 chartArea1.Name = "ChartArea1";
//其实没有必要,可以使用chart1。ChartAreas[0]就可以了 chart1.ChartAreas.Add(chartArea1);
//完成Chart和chartArea的关联 //System.Windows.Forms.DataVisualization.Charting.Legend legend1 = new System.Windows.Forms.DataVisualization.Charting.Legend(); //legend1.Name = "图标"; //chart1.Legends.Add(legend1); chart1.Name = "chart1"; series1.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Spline;
//设置线性 Random rd = new Random(); double[] num = new double[20];
for (int i = 0; i < 20; i++) { int valuey = rd.Next(20, 100); DataPoint point = new DataPoint((i + 1), valuey); series1.Points.Add(point); }
//产生点的坐标 //chart1.Titles[0].Text = ""; series1.ChartArea = "ChartArea1"; chartArea1.AxisX.Title = "日期"; chartArea1.AxisY.Title = "值"; chartArea1.AxisX.Interval = 1; chartArea1.AxisY.Interval = 5; chartArea1.AxisY.Minimum = 20; series1.Legend = "图标"; series1.Name = "Series1"; chart1.Text = "测试"; chart1.Size = new System.Drawing.Size(700, 500); //chart1.Location = new System.Drawing.Point(50,120); series1.Color = Color.Blue; chart1.Text = "ceshi"; //chart1.Titles[0].Text = "fff"; chart1.Series.Add(series1); //这一句很重要,缺少的话绘图区域将显示空白 //chart1.SizeChanged += new System.EventHandler(DoSizeChanged); //chart1.AllowDrop = true; chart1.BackColor = Color.FromArgb(243, 223, 193);
//设置chart背景颜色 chartArea1.BackColor = Color.FromArgb(243, 223, 193);
//设置c绘图区域背景颜色 series1.BorderWidth = 2; series1.IsValueShownAsLabel = true;
//是否显示Y的值
//this.groupBox9.Controls.Add(chart1); this.panel21.Controls.Add(chart1); chart1.Visible = true; //this.label10.Visible = true; //this.label10.Text = "【" + tn.Name + "】图"; chart1.Titles.Add("【" + tn.Name + "】图"); //为Chart1添加标题 chartArea1.AxisX.IsMarginVisible = true;
//是否显示X轴两端的空白
2、在上述chart的基础上添加一条线
Control[] controls = this.groupBox9.Controls.Find("chart1",true);
//找到已经有的Chart1 System.Windows.Forms.DataVisualization.Charting.Chart ch = (System.Windows.Forms.DataVisualization.Charting.Chart)controls[0]; System.Windows.Forms.DataVisualization.Charting.Series series2 = new System.Windows.Forms.DataVisualization.Charting.Series();
//新定义一个数据项 Random rd=new Random(); for (int i = 0; i < ch.Series[0].Points.Count; i++) { int valuey=rd.Next(20,100); DataPoint point = new DataPoint((i + 1), valuey); series2.Points.Add(point); } series2.Color = Color.FromArgb(rd.Next(100, 255), rd.Next(0, 150), rd.Next(0, 255)); series2.BorderWidth = 2; series2.ChartType = ((System.Windows.Forms.DataVisualization.Charting.Chart)this.panel21.Controls[0]).Series[0].ChartType;
//定义线性和原有的线条形状一致 series2.IsValueShownAsLabel = true; ch.Series.Add(series2);
//添加数据列
3、减少一条曲线
Control[] controls = this.groupBox9.Controls.Find("chart1", true); System.Windows.Forms.DataVisualization.Charting.Chart ch = (System.Windows.Forms.DataVisualization.Charting.Chart)controls[0]; if (ch.Series.Count>1) { //MessageBox.Show(this, "去掉一条线!", "信息提示"); int i = ch.Series.Count - 1; while (i>1) { if (ch.Series[i].Points.Count>0) { break; } i -=1; }
ch.Series[i].Points.Clear(); this.toolStripStatusLabel2.Text = "减少对比曲线完成!"; } else { MessageBox.Show(this, "绘图区域至少要有一条线!", "信息提示"); }
效果图:
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