RDLC 实现柱形图

using Microsoft.Reporting.WinForms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

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

        }

        private void Form1_Load(object sender, EventArgs e)
        {

            //指定报表外的数据源
            DataTable table = new DataTable();
            table.Columns.Add("month", typeof(string));
            table.Columns.Add("num", typeof(int));
            table.Columns.Add("prices",typeof(int));
          
            table.Rows.Add("1", "200","100");
            //table.Rows.Add("1", "400");
            //table.Rows.Add("1", "100");
            //table.Rows.Add("1", "300");
            //table.Rows.Add("1", "200");
            table.Rows.Add("2", "300","150");
            //table.Rows.Add("2", "300");
            //table.Rows.Add("2", "300");
            //table.Rows.Add("2", "300");
            table.Rows.Add("3", "500","250");
            //table.Rows.Add("3", "500");
            //table.Rows.Add("3", "500");
            //table.Rows.Add("4", "100");
            //table.Rows.Add("4", "100");
            table.Rows.Add("4", "100","350");

            //添加数据源
            ReportDataSource rds = new ReportDataSource();
            rds.Name = "DataSet1";
            rds.Value = table;

            //向报表绑定数据源
            this.reportViewer1.LocalReport.DataSources.Add(rds);
            ///---向报表查看器指定显示的报表
            this.reportViewer1.LocalReport.ReportPath = @"..\..\Report1.rdlc";
            this.reportViewer1.RefreshReport();
           
        }

        private void reportViewer1_Load(object sender, EventArgs e)
        {
            
        }
    }
}