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 WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable("user");
DataColumn col = new DataColumn("id", typeof(int));
col.AutoIncrement = true;
dt.Columns.Add(col);
col = new DataColumn("user", typeof(string));
col.AllowDBNull = false;
dt.Columns.Add(col);
DataRow row = dt.NewRow();
row["user"] = "A";
dt.Rows.Add(row);
ds.Tables.Add(dt);
dataGridView1.DataSource = dt;
//为什么写这不行:dataGridView1.DataSource = ds;
}
}
}
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable("user");
DataColumn col = new DataColumn("id", typeof(int));
col.AutoIncrement = true;
dt.Columns.Add(col);
col = new DataColumn("user", typeof(string));
col.AllowDBNull = false;
dt.Columns.Add(col);
DataRow row = dt.NewRow();
row["user"] = "A";
dt.Rows.Add(row);
ds.Tables.Add(dt);
dataGridView1.DataSource = dt;
//为什么写这不行:dataGridView1.DataSource = ds;
}
}
}
使用DataSet作为数据源时候,需同时设置dataGridView控件的DataMember属性,这里你应该dataGridView1.DataSource = ds;
dataGridView1.DataMember = "user";
dataGridView1.DataMember = "user";
多出这行饿