mschart控件的累计柱状图效果实现

private void Form1_Load(object sender, EventArgs e)
        {
            //定义一个表，并添加数据
            DataTable tbl = new DataTable();

            DataColumn c1 = new DataColumn("c1");
            DataColumn c2 = new DataColumn("c2");
            DataColumn c3 = new DataColumn("c3");
            tbl.Columns.Add(c1);
            tbl.Columns.Add(c2);
            tbl.Columns.Add(c3);

            DataRow r1 = tbl.NewRow();
            r1["c1"] = "china";
            r1["c2"] = 60;
            r1["c3"] = 20;
            tbl.Rows.Add(r1);

            DataRow r2 = tbl.NewRow();
            r2["c1"] = "america";
            r2["c2"] = 10;
            r2["c3"] = 5;
            tbl.Rows.Add(r2);
            


            Series series1 = new Series();
            series1.ChartType = SeriesChartType.StackedColumn;
            Chart1.Series.Add(series1);
            Series series2 = new Series();
            series2.ChartType = SeriesChartType.StackedColumn;
            Chart1.Series.Add(series2);

            Chart1.Series[0].Points.DataBind(tbl.DefaultView, "c1", "c2", "");
            Chart1.Series[1].Points.DataBind(tbl.DefaultView, "c1", "c3", "");

            Chart1.Series[0].Name = "Rank A";
            Chart1.Series[1].Name = "Rank B";

            Chart1.Series[0].IsValueShownAsLabel = true;
            Chart1.Series[1].IsValueShownAsLabel = true;
            Chart1.ChartAreas[0].Area3DStyle.Enable3D = true;



            /*删除下面，才能实现累计柱状图（如图1），否则效果（如图2）
            目前还没看懂关于Series对象方括号中的这个所谓的自定义属性*/

            //foreach (Series s in Chart1.Series)
            //{
            //    s["StackedGroupName"] = s.Name;
            //}
            
        }

图1  累计柱状图效果

图2