C# WinForm动态添加MSChart控件

2020-12-13 05:35

阅读：248

标签：winform blog http color 使用 os 数据 io

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 {
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 {
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;
}