ChartControl控件绘制柱状图

article/2025/11/5 16:08:41

1、新建一个DevExpress窗体（不要用WinForm窗体）

2、拖入一个chartcontrol控件

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3、鼠标右键，点击run designer

添加两个series
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在这里插入图片描述

4、代码设置

数据库表结构，我的想法是统计办事员和售货员的人数
数据库查询语句

select job,count(empno) as total from emp where job='办事员' group by job;
select job,count(empno) as total from emp where job='售货员' group by job;

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Form1.cs代码设置:

using DevExpress.XtraCharts;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace DXApplication9
{public partial class Form1 : DevExpress.XtraEditors.XtraForm{public Form1(){InitializeComponent();Bind();}public void Bind(){//Series类就是向图标里填充数据的类Series s1 = this.chartControl1.Series[0];Series s2 = this.chartControl1.Series[1];using (SqlConnection con=new SqlConnection("Data Source=.;Initial Catalog=test_10_23;User ID=sa;Password=123456;Connection Timeout=10")){string sql = "select job,count(empno) as total from emp where job='办事员' group by job;";string sql1 = "select job,count(empno) as total from emp where job='售货员' group by job;";SqlDataAdapter sda=new SqlDataAdapter(sql,con);SqlDataAdapter sda1 = new SqlDataAdapter(sql1, con);DataSet ds = new DataSet();DataSet ds1 = new DataSet();sda.Fill(ds);sda1.Fill(ds1);s1.DataSource = ds.Tables[0];s2.DataSource = ds1.Tables[0];s1.ArgumentDataMember = "job";//横坐标s2.ArgumentDataMember = "job";s1.ValueDataMembers[0] = "total";//纵坐标s2.ValueDataMembers[0] = "total";s1.LegendText = "办事员";s2.LegendText = "售货员";}}}
}