c#绘制棒图和饼图

用Chart控件

（1）设计时，在Form1上布置一个Chart控件，2个RadioButton

（2）窗体代码Form1.cs如下

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Drawing;
using System.Windows.Forms.DataVisualization.Charting;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            chart1.Series[0].Points.AddXY(1, 10);
            chart1.Series[0].Points.AddXY(2, 80);
            chart1.Series[0].Points.AddXY(3, 55);
            chart1.Series[0].Points.AddXY(4, 70);
            chart1.Series[0].Points.AddXY(5, 92);
        }

        private void radioButton1_CheckedChanged(
                object sender, 
                EventArgs e)
        {
            if (radioButton1.Checked)
            {
                chart1.Series[0].ChartType = SeriesChartType.Column;
            }
            else
            {
                chart1.Series[0].ChartType = SeriesChartType.Pie;
            }
        }
    }
}

（3）运行