捕捉DataGrid的双击事件(C#版本)

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="";
}
}
}