в 16:40, 26 мая 2010

2010-05-26T16:40:16Z

Admin: 1 версия

2010-05-26T12:51:24Z

1 версия

Новая страница

==CheckState.Checked==

<source lang="vbnet">

Imports System.Windows.Forms
public class CheckBoxSelectedState
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class

Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents checkBoxA As System.Windows.Forms.CheckBox
Friend WithEvents checkBoxB As System.Windows.Forms.CheckBox
Friend WithEvents btnStatus As System.Windows.Forms.Button
Friend WithEvents btnEnable As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.checkBoxA = New System.Windows.Forms.CheckBox()
Me.checkBoxB = New System.Windows.Forms.CheckBox()
Me.btnStatus = New System.Windows.Forms.Button()
Me.btnEnable = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
"checkBoxA
"
Me.checkBoxA.Checked = True
Me.checkBoxA.CheckState = System.Windows.Forms.CheckState.Checked
Me.checkBoxA.Location = New System.Drawing.Point(48, 72)
Me.checkBoxA.Name = "checkBoxA"
Me.checkBoxA.Size = New System.Drawing.Size(200, 24)
Me.checkBoxA.TabIndex = 0
Me.checkBoxA.Text = "CheckBox A"
"
"checkBoxB
"
Me.checkBoxB.AutoCheck = False
Me.checkBoxB.Checked = True
Me.checkBoxB.CheckState = System.Windows.Forms.CheckState.Indeterminate
Me.checkBoxB.Location = New System.Drawing.Point(48, 120)
Me.checkBoxB.Name = "checkBoxB"
Me.checkBoxB.Size = New System.Drawing.Size(200, 24)
Me.checkBoxB.TabIndex = 1
Me.checkBoxB.Text = "CheckBox B"
Me.checkBoxB.ThreeState = True
"
"btnStatus
"
Me.btnStatus.Anchor = (System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right)
Me.btnStatus.Location = New System.Drawing.Point(56, 192)
Me.btnStatus.Name = "btnStatus"
Me.btnStatus.Size = New System.Drawing.Size(136, 23)
Me.btnStatus.TabIndex = 2
Me.btnStatus.Text = "View Checkbox Status"
"
"btnEnable
"
Me.btnEnable.Anchor = (System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right)
Me.btnEnable.Location = New System.Drawing.Point(224, 192)
Me.btnEnable.Name = "btnEnable"
Me.btnEnable.Size = New System.Drawing.Size(96, 23)
Me.btnEnable.TabIndex = 3
Me.btnEnable.Text = "Enable"
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(368, 266)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnEnable, Me.btnStatus, Me.checkBoxB, Me.checkBoxA})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
Private Sub btnStatus_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles btnStatus.Click
Dim status As String
If checkBoxA.Checked = True Then
status = "checkBoxA is checked. " & ControlChars.Cr
Else
status = "checkBoxA is unchecked. " & ControlChars.Cr
End If
If checkBoxB.ThreeState = True Then
status = status & "checkBoxB"s CheckState is " & checkBoxB.CheckState.ToString() & "."
Else
If checkBoxB.Checked = True Then
status = status & "checkBoxB is checked."
Else
status = status & "checkBoxB is unchecked."
End If
End If
MessageBox.Show(status)
End Sub
Private Sub btnEnable_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles btnEnable.Click
checkBoxB.AutoCheck = True
checkBoxB.CheckState = CheckState.Checked
checkBoxB.ThreeState = False
End Sub
End Class

</source>

==CheckState.Indeterminate==

<source lang="vbnet">
Imports System.Windows.Forms
Module Module1
Sub Main()
Application.Run(New Form1)
End Sub
End Module

Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
Friend WithEvents CheckBox2 As System.Windows.Forms.CheckBox
Friend WithEvents CheckBox3 As System.Windows.Forms.CheckBox
Friend WithEvents Label1 As System.Windows.Forms.Label
Public Sub New()
MyBase.New()
Me.CheckBox1 = New System.Windows.Forms.CheckBox()
Me.CheckBox2 = New System.Windows.Forms.CheckBox()
Me.CheckBox3 = New System.Windows.Forms.CheckBox()
Me.Label1 = New System.Windows.Forms.Label()
Me.SuspendLayout()
"
"CheckBox1
"
Me.CheckBox1.Location = New System.Drawing.Point(24, 32)
Me.CheckBox1.Name = "CheckBox1"
Me.CheckBox1.TabIndex = 0
Me.CheckBox1.Text = "Item 1 "
Me.CheckBox1.ThreeState = True
"
"CheckBox2
"
Me.CheckBox2.Location = New System.Drawing.Point(24, 72)
Me.CheckBox2.Name = "CheckBox2"
Me.CheckBox2.Size = New System.Drawing.Size(136, 24)
Me.CheckBox2.TabIndex = 1
Me.CheckBox2.Text = "Item 2 "
Me.CheckBox2.ThreeState = True
"
"CheckBox3
"
Me.CheckBox3.Location = New System.Drawing.Point(24, 112)
Me.CheckBox3.Name = "CheckBox3"
Me.CheckBox3.Size = New System.Drawing.Size(144, 24)
Me.CheckBox3.TabIndex = 2
Me.CheckBox3.Text = "Item 3"
Me.CheckBox3.ThreeState = True
"
"Label1
"
Me.Label1.Location = New System.Drawing.Point(32, 176)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(224, 56)
Me.Label1.TabIndex = 3
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1, Me.CheckBox3, Me.CheckBox2, Me.CheckBox1})
Me.Name = "Form1"
Me.Text = "CheckBoxDemo"
Me.ResumeLayout(False)
End Sub
Private Sub CheckBox1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox1.Click, CheckBox2.Click, CheckBox3.Click
Label1.Text = "Choices: "
If (CheckBox1.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox1.Text
End If
If (CheckBox1.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox1.Text & " (I)"
End If
If (CheckBox2.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox2.Text
End If
If (CheckBox2.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox2.Text & " (I)"
End If
If (CheckBox3.Checked) Then
Label1.Text = Label1.Text & " " & CheckBox3.Text
End If
If (CheckBox3.CheckState = CheckState.Indeterminate) Then
Label1.Text = Label1.Text & " " & CheckBox3.Text & " (I)"
End If
Label1.Refresh()
End Sub
End Class

</source>

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VB.Net by API/System.Windows.Forms/CheckState - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия