捕捉DataGrid的双击事件

Option Strict Off
Option Explicit On
Imports Microsoft.VisualBasic
Imports System
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Namespace DataGridDoubleClick
Public Class Form1
Inherits Form
Private WithEvents dataGrid1 As DataGrid
Private WithEvents myDataSet As DataSet
Private gridMouseDownTime As DateTime
Private components As Container
Public Sub New()
MyBase.New()
InitializeComponent()
gridMouseDownTime = DateTime.Now
SetUp()
End Sub
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If (Not (components) Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
Private Sub SetUp()
MakeDataSet()
dataGrid1.SetDataBinding(myDataSet, "Customers")
AddCustomDataTableStyle()
End Sub
Private Sub MakeDataSet()
myDataSet = New DataSet("myDataSet")
Dim tCust As DataTable
tCust = New DataTable("Customers")
Dim cCustID As DataColumn
cCustID = New DataColumn("custID")
Dim cCustName As DataColumn
cCustName = New DataColumn("custName")
Dim cCurrent As DataColumn
cCurrent = New DataColumn("custCity")
tCust.Columns.Add(cCustID)
tCust.Columns.Add(cCustName)
tCust.Columns.Add(cCurrent)
myDataSet.Tables.Add(tCust)
Dim newRow1 As DataRow
Dim i As Integer
i = 1
Do While (i < 4)
newRow1 = tCust.NewRow
newRow1("custID") = i.ToString()
tCust.Rows.Add(newRow1)
i = (i + 1)
Loop
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"
End Sub
Private Sub AddCustomDataTableStyle()
Dim ts1 As DataGridTableStyle
ts1 = New DataGridTableStyle()
ts1.MappingName = "Customers"
ts1.AlternatingBackColor = Color.LightGray
Dim TextCol As DataGridTextBoxColumn
TextCol = New DataGridTextBoxColumn()
TextCol.MappingName = "custID"
TextCol.HeaderText = "序号"
TextCol.Width = 100
AddHandler TextCol.TextBox.MouseDown, New MouseEventHandler(AddressOf TextBoxMouseDownHandler)
AddHandler TextCol.TextBox.DoubleClick, New EventHandler(AddressOf TextBoxDoubleClickHandler)
ts1.GridColumnStyles.Add(TextCol)
TextCol = New DataGridTextBoxColumn()
TextCol.MappingName = "custName"
TextCol.HeaderText = "姓名"
TextCol.Width = 100
AddHandler TextCol.TextBox.MouseDown, New MouseEventHandler(AddressOf TextBoxMouseDownHandler)
AddHandler TextCol.TextBox.DoubleClick, New EventHandler(AddressOf TextBoxDoubleClickHandler)
ts1.GridColumnStyles.Add(TextCol)
TextCol = New DataGridTextBoxColumn()
TextCol.MappingName = "custCity"
TextCol.HeaderText = "地址"
TextCol.Width = 100
AddHandler TextCol.TextBox.MouseDown, New MouseEventHandler(AddressOf TextBoxMouseDownHandler)
AddHandler TextCol.TextBox.DoubleClick, New EventHandler(AddressOf TextBoxDoubleClickHandler)
ts1.GridColumnStyles.Add(TextCol)
dataGrid1.TableStyles.Add(ts1)
End Sub
Friend WithEvents Label1 As System.Windows.Forms.Label
Private Sub InitializeComponent()
Me.dataGrid1 = New System.Windows.Forms.DataGrid()
Me.Label1 = New System.Windows.Forms.Label()
CType(Me.dataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'dataGrid1
'
Me.dataGrid1.CaptionVisible = False
Me.dataGrid1.DataMember = ""
Me.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
Me.dataGrid1.Location = New System.Drawing.Point(12, 8)
Me.dataGrid1.Name = "dataGrid1"
Me.dataGrid1.Size = New System.Drawing.Size(368, 128)
Me.dataGrid1.TabIndex = 0
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(10, 149)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(370, 23)
Me.Label1.TabIndex = 1
Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(388, 189)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1, Me.dataGrid1})
Me.Name = "Form1"
Me.Text = "鼠标双击事件的例子"
CType(Me.dataGrid1, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
<STAThread()> _
Public Shared Sub Main()
Application.Run(New Form1())
End Sub
Private Sub TextBoxDoubleClickHandler(ByVal sender As Object, ByVal e As EventArgs)
MessageBox.Show("TrueDoubleClick")
End Sub
Private Sub TextBoxMouseDownHandler(ByVal sender As Object, ByVal e As MouseEventArgs)
If (DateTime.Now < gridMouseDownTime.AddMilliseconds(SystemInformation.DoubleClickTime)) Then
MessageBox.Show("GridDoubleClick：" + CType(sender, TextBox).Text)
End If
Label1.Text = "TextBoxMouseDownHandler "
End Sub
Private Sub dataGrid1_MouseDown(ByVal sender As System.Object, _
ByVal e As System.Windows.Forms.MouseEventArgs) Handles dataGrid1.MouseDown
gridMouseDownTime = DateTime.Now
Label1.Text = "dataGrid1_MouseDown "
End Sub
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Label1.Click
Label1.Text = ""
End Sub
Private Sub Form1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles MyBase.Click
Label1.Text = ""
End Sub
End Class
End Namespace