先链接数据库新建一个LinQ
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; namespace WindowsFormsApplication16 { public partial class Form1 : Form { private DataClasses1DataContext Context; public Form1() { InitializeComponent(); Context = new DataClasses1DataContext(); } private void Form1_Load(object sender, EventArgs e) { List<Car> list = Context.Car.Take(5).ToList(); //为图表指定数据源 chart1.DataSource = list; chart1.Series["Series1"].XValueMember = "Name"; chart1.Series["Series1"].YValueMembers = "Oil"; chart1.Series["Series2"].XValueMember = "Name"; chart1.Series["Series2"].YValueMembers = "powers"; chart1.Series["Series2"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.FastLine; } } }