我从数据读里面读数据,想用多个图标显示,但最后运行的时候就只有一个图标有数据,怎么解决?
Chart1.Series["Series1"].Points.DataBindXY(myReader, "OrderID", myReader, "Freight");
Chart2.Series["Series2"].Points.DataBindXY(myReader, "OrderID", myReader, "EmployeeID");
就是Chart1有数据。
Chart1.Series["Series1"].Points.DataBindXY(myReader, "OrderID", myReader, "Freight");
Chart2.Series["Series2"].Points.DataBindXY(myReader, "OrderID", myReader, "EmployeeID");
就是Chart1有数据。
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即Chart2.Series["Series2"].Points.DataBindXY(myReader, "OrderID", myReader, "EmployeeID"); 时数据以到末尾,无数据可读http://www.mybuffet.cn
chart1.Series["Series1"].XValueMember = "Name";
chart1.Series["Series1"].YValueMembers = "ID";
chart1.DataBind();2 Chart1.Series["Series1"].Points.DataBindXY(myReader, "Name", myReader, "ID");4 Chart1.Series["Series1"].Points.DataBind(myReader, "Name", "ID", "");
例如:
ChartArea ChartArea2 = new ChartArea("ChartArea2");
Chart1.ChartAreas.Add(ChartArea2);
Series Series2 = new Series("Series2");
Chart1.Series.Add(Series2);
Chart1.Series["Series2"].Points.DataBindXY(myReader, "OrderID", myReader, "EmployeeID");
Series2.ChartArea = "ChartArea2";