DataGrid上的更新、删除问题？
我想在DataGrid上进行添加、更新、删除但没做出来，请大家帮我看看怎么回事。
我的代码如下：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb;
namespace 修理
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
OleDbConnection objConnection;
OleDbDataAdapter objCommand;
DataSet DataSet1;
private System.Windows.Forms.CheckedListBox checkedListBox1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.checkedListBox1 = new System.Windows.Forms.CheckedListBox();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(8, 8);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(120, 176);
this.dataGrid1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(128, 208);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "更新";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(360, 208);
this.button2.Name = "button2";
this.button2.TabIndex = 2;
this.button2.Text = "删除";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// checkedListBox1
//
this.checkedListBox1.CheckOnClick = true;
this.checkedListBox1.Location = new System.Drawing.Point(144, 8);
this.checkedListBox1.Name = "checkedListBox1";
this.checkedListBox1.Size = new System.Drawing.Size(120, 180);
this.checkedListBox1.TabIndex = 3;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(576, 261);
this.Controls.Add(this.checkedListBox1);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.dataGrid1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{
objCommand.Update(DataSet1,"返修表");
}
private void button2_Click(object sender, System.EventArgs e)
{
int n=dataGrid1.CurrentRowIndex;
DataSet1.Tables[0].Rows[n].Delete();
objCommand.Update(DataSet1,"返修表");
}
private void Form1_Load(object sender, System.EventArgs e)
{
string strConnect;
string strCommand;
DataSet1=new DataSet();
strConnect=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\Administrator\My Documents\Visual Studio Projects\修理\报修表.mdb;";
strConnect+="Persist Security Info=False";
strCommand="select * from 返修表";
objConnection=new OleDbConnection (strConnect);
objCommand=new OleDbDataAdapter(strCommand,objConnection);
objCommand.Fill(DataSet1,"返修表");
dataGrid1.DataSource=DataSet1.Tables["返修表"].DefaultView;
dataGrid1.SetDataBinding(DataSet1,"返修表");
}
}
}
问题点数：50、回复次数：3Top
1 楼zhzuo（秋枫）回复于 2005-04-04 13:28:44 得分 50
http://blog.csdn.net/zhzuo/archive/2004/08/06/67016.aspx
http://blog.csdn.net/zhzuo/archive/2004/08/06/67037.aspxTop
2 楼yosonlin（）回复于 2005-04-05 09:58:26 得分 0
先要用AcceptChanges 接受修改，再用update()
Top
3 楼smallMage（小马哥）回复于 2005-04-05 10:46:27 得分 0
dotnet.aspx.ccTop
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