mschart饼状图设置各区的颜色。

    protected void Page_Load(object sender, System.EventArgs e)
    {
        DataTable dt = createtable();
        Chart Chart1 = this.FindControl("Chart1") as Chart;
        Chart1.Series[0].Points.DataBindXY(dt.AsEnumerable().Select(x => x["mingcheng"]).ToList(), dt.AsEnumerable().Select(x => x["shuliang"]).ToList());
        Chart1.Series[0].ChartType = SeriesChartType.Pie;
        Chart1.Series[0].Points[0].Color = Color.Green;
        Chart1.Series[0].Points[1].Color = Color.Blue;
        Chart1.Series[0].Points[2].Color = Color.Yellow;
        Chart1.Series[0].Points[3].Color = Color.Red;

        Chart1.Series[0].ChartArea = "ChartArea1";
        Chart1.Series[0].XValueMember = "mingcheng";
        Chart1.Series[0].YValueMembers = "shuliang";


    }

我这里测试是可以的。你把你完整的代码贴出来看（如果有数据库的话，你把它分离掉），然后打包传百度云，我可以帮你看看。

完整代码下载：https://download.csdn.net/download/caozhy/10694629

 using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;

namespace Q701079
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string[] xValues = { "30%", "20%", "50%" };
            int[] yValues = {30, 20, 50 };
            chart1.Series[0].ChartType = SeriesChartType.Pie;
            chart1.Series[0].Points.DataBindXY(xValues, yValues);
            chart1.Series[0].Points[0].Color = Color.DarkBlue;
            chart1.Series[0].Points[1].Color = Color.Blue;
            chart1.Series[0].Points[2].Color = Color.Azure;
        }
    }
}