C# 实现统计图

using System;
using System.Collections.Generic;
using using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraCharts;

namespace WindowsApplication8
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private DataTable CreateChartData()
        {
            // Create an empty table.
            DataTable table = new DataTable("Table1");

            // Add three columns to the table.
            table.Columns.Add("Language", typeof(String));
            table.Columns.Add("Section", typeof(String));
            table.Columns.Add("Value", typeof(Decimal));

            // Add data rows to the table.
            table.Rows.Add(new object[] { "C#", "Section1", 10.123 });
            table.Rows.Add(new object[] { "JAVA", "Section2", 20 });
            table.Rows.Add(new object[] { "C++", "Section3", 20 });
            table.Rows.Add(new object[] { "F#", "Section4", 30 });
            table.Rows.Add(new object[] { "JAVASCRIPT", "Section5", 15 });
            table.Rows.Add(new object[] { "VB", "Section6", 25 });
            table.Rows.Add(new object[] { "", "Section7", 10.123 });
            table.Rows.Add(new object[] { "C", "Section8", 20 });
            table.Rows.Add(new object[] { "PHP", "Section9", 20 });
            table.Rows.Add(new object[] { "PB", "Section10", 30 });
            table.Rows.Add(new object[] { "VF", "Section11", 15 });

            return table;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Generate a data table and bind the chart to it.
            chartControl1.DataSource = CreateChartData();
            // Specify data members to bind the chart's series template.
            chartControl1.SeriesDataMember = "LANGUAGE";
            chartControl1.SeriesTemplate.ArgumentDataMember = "Section";
            chartControl1.SeriesTemplate.ValueDataMembers.AddRange(new string[] { "Value" });
            // Specify the template's series view
            chartControl1.SeriesTemplate.View = new StackedBarSeriesView();
            // Specify the template's name prefix.
            chartControl1.SeriesNameTemplate.BeginText = "LANGUAGE: ";
            // Dock the chart into its parent, and add it to the current form.
            chartControl1.Dock = DockStyle.Fill;

        }

    }
}