捕捉DataGrid的双击事件(C#版本)

namespace DataGridDoubleClick
{
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private DataSet myDataSet;
DateTime gridMouseDownTime;
private System.Windows.Forms.Label label1;

private System.ComponentModel.Container components = null;

public Form1()
{
InitializeComponent();
gridMouseDownTime = DateTime.Now;
SetUp();
}

private void SetUp()
{
// 用2个Table和1和Relation创建DataSet
MakeDataSet();
// 数据绑定
dataGrid1.SetDataBinding(myDataSet, "Customers");

//添加样式
AddCustomDataTableStyle();
}

private void MakeDataSet()
{
// 创建DataSet.
myDataSet = new DataSet("myDataSet");

// 创建2个DataTables.
DataTable tCust = new DataTable("Customers");

// 创建两个列，并添加到第一个表
DataColumn cCustID = new DataColumn("custID");
DataColumn cCustName = new DataColumn("custName");
DataColumn cCurrent = new DataColumn("custCity");
tCust.Columns.Add(cCustID);
tCust.Columns.Add(cCustName);
tCust.Columns.Add(cCurrent);

// 把tables添加到DataSet.
myDataSet.Tables.Add(tCust);


/* 计算tables.对每个客户，创建DataRow变量 */
DataRow newRow1;

// 添加记录到 Customers Table.
for(int i = 1; i < 4; i++)
{
newRow1 = tCust.NewRow();
newRow1["custID"] = (100*i).ToString();
tCust.Rows.Add(newRow1);
}

tCust.Rows[0]["custName"] = "【孟宪会之精彩世界】";
tCust.Rows[1]["custName"] = "net_lover";
tCust.Rows[2]["custName"] = "http://xml.sz.luohuedu.net/";


tCust.Rows[0]["custCity"] = "北京";
tCust.Rows[1]["custCity"] = "上海";
tCust.Rows[2]["custCity"] = "河南";
}

private void AddCustomDataTableStyle()
{
DataGridTableStyle ts1 = new DataGridTableStyle();
ts1.MappingName = "Customers";
// 设置属性
ts1.AlternatingBackColor = Color.LightGray;

// 添加Textbox列样式，以便我们捕捉鼠标事件
DataGridTextBoxColumn TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custID";
TextCol.HeaderText = "序号";
TextCol.Width = 100;

//添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custName";
TextCol.HeaderText = "姓名";
TextCol.Width = 100;
//添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custCity";
TextCol.HeaderText = "地址";
TextCol.Width = 100;
//添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

dataGrid1.TableStyles.Add(ts1);

}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeComponent()
{
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.label1 = new System.Windows.Forms.Label();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.CaptionBackColor = System.Drawing.SystemColors.Info;
this.dataGrid1.CaptionForeColor = System.Drawing.SystemColors.WindowText;
this.dataGrid1.CaptionVisible = false;
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(11, 9);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(368, 144);
this.dataGrid1.TabIndex = 0;
this.dataGrid1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.dataGrid1_MouseDown);
//
// label1
//
this.label1.Location = new System.Drawing.Point(4, 166);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(383, 23);
this.label1.TabIndex = 1;
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.label1.Click += new System.EventHandler(this.Form1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(387, 201);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1,
this.dataGrid1});
this.Name = "Form1";
this.Text = "鼠标双击事件的例子";
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);

}
#endregion

[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void TextBoxDoubleClickHandler(object sender, EventArgs e)
{
MessageBox.Show("双击事件发生。鼠标双击到的值："+((TextBox)sender).Text.ToString());
}

private void TextBoxMouseDownHandler(object sender, MouseEventArgs e)
{
if(DateTime.Now < gridMouseDownTime.AddMilliseconds(SystemInformation.DoubleClickTime))
{
MessageBox.Show("双击事件发生。鼠标双击到的值："+((TextBox)sender).Text.ToString());
}
label1.Text = "TextBox 鼠标按下了。 ";
}

private void dataGrid1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
gridMouseDownTime = DateTime.Now;
label1.Text = "DataGrid1 鼠标按下了。 ";
}

private void Form1_Click(object sender, System.EventArgs e)
{
label1.Text="";
}
private void label1_Click(object sender, System.EventArgs e)
{
label1.Text="";
}
}
}