VB.Net Tutorial/GUI/Control Properties — различия между версиями
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Текущая версия на 15:56, 26 мая 2010
Change Control"s background color
<source lang="vbnet">Imports System.Windows.Forms Imports System.Drawing Imports System.Drawing.Drawing2D public class GetAllControlsOnForm
public Shared Sub Main Application.Run(New Form1) End Sub
End class
Public Class Form1
Private Sub ActRed_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ActRed.Click For Each scanControls As Control In Me.Controls If (TypeOf scanControls Is Label) Then scanControls.BackColor = Color.Red End If Next scanControls End Sub Private Sub ActNormal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ActNormal.Click For Each scanControls As Control In Me.Controls If (TypeOf scanControls Is Label) Then scanControls.BackColor = SystemColors.Control End If Next scanControls End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1
Inherits System.Windows.Forms.Form "Form overrides dispose to clean up the component list. <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) If disposing AndAlso components IsNot Nothing Then components.Dispose() End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() Me.Label1 = New System.Windows.Forms.Label Me.ActRed = New System.Windows.Forms.Button Me.Label2 = New System.Windows.Forms.Label Me.Label3 = New System.Windows.Forms.Label Me.ActNormal = New System.Windows.Forms.Button Me.SuspendLayout() " "Label1 " Me.Label1.AutoSize = True Me.Label1.Location = New System.Drawing.Point(8, 8) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(39, 13) Me.Label1.TabIndex = 0 Me.Label1.Text = "Label1" " "ActRed " Me.ActRed.Location = New System.Drawing.Point(16, 88) Me.ActRed.Name = "ActRed" Me.ActRed.Size = New System.Drawing.Size(75, 23) Me.ActRed.TabIndex = 1 Me.ActRed.Text = "Red" Me.ActRed.UseVisualStyleBackColor = True " "Label2 " Me.Label2.AutoSize = True Me.Label2.Location = New System.Drawing.Point(8, 32) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(39, 13) Me.Label2.TabIndex = 2 Me.Label2.Text = "Label2" " "Label3 " Me.Label3.AutoSize = True Me.Label3.Location = New System.Drawing.Point(8, 56) Me.Label3.Name = "Label3" Me.Label3.Size = New System.Drawing.Size(39, 13) Me.Label3.TabIndex = 3 Me.Label3.Text = "Label3" " "ActNormal " Me.ActNormal.Location = New System.Drawing.Point(104, 88) Me.ActNormal.Name = "ActNormal" Me.ActNormal.Size = New System.Drawing.Size(75, 23) Me.ActNormal.TabIndex = 4 Me.ActNormal.Text = "Normal" Me.ActNormal.UseVisualStyleBackColor = True " "Form1 " Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(292, 127) Me.Controls.Add(Me.ActNormal) Me.Controls.Add(Me.Label3) Me.Controls.Add(Me.Label2) Me.Controls.Add(Me.ActRed) Me.Controls.Add(Me.Label1) Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle Me.MaximizeBox = False Me.Name = "Form1" Me.Text = "Iterating Controls" Me.ResumeLayout(False) Me.PerformLayout() End Sub Friend WithEvents Label1 As System.Windows.Forms.Label Friend WithEvents ActRed As System.Windows.Forms.Button Friend WithEvents Label2 As System.Windows.Forms.Label Friend WithEvents Label3 As System.Windows.Forms.Label Friend WithEvents ActNormal As System.Windows.Forms.Button
End Class</source>
Set Control"s foreground color
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class ColorDialogSetForgroundBackgroundColor
public Shared Sub Main Application.Run(New FrmColorDialogTest) End Sub
End class Public Class FrmColorDialogTest
Inherits System.Windows.Forms.Form Friend WithEvents cmdBackgroundButton As Button Friend WithEvents cmdTextButton As Button
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 "Required by the Windows Form Designer Private components As System.ruponentModel.Container "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.cmdBackgroundButton = New System.Windows.Forms.Button() Me.cmdTextButton = New System.Windows.Forms.Button() Me.SuspendLayout() " "cmdBackgroundButton " Me.cmdBackgroundButton.Location = New System.Drawing.Point(16, 16) Me.cmdBackgroundButton.Name = "cmdBackgroundButton" Me.cmdBackgroundButton.Size = New System.Drawing.Size(160, 24) Me.cmdBackgroundButton.TabIndex = 0 Me.cmdBackgroundButton.Text = "Change Background Color" " "cmdTextButton " Me.cmdTextButton.Location = New System.Drawing.Point(16, 56) Me.cmdTextButton.Name = "cmdTextButton" Me.cmdTextButton.Size = New System.Drawing.Size(160, 24) Me.cmdTextButton.TabIndex = 1 Me.cmdTextButton.Text = "Change Text Color" " "FrmColorDialogTest " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(192, 93) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.cmdTextButton, Me.cmdBackgroundButton}) Me.Name = "FrmColorDialogTest" Me.Text = "Using Color Dialogs" Me.ResumeLayout(False) End Sub
- End Region
Dim colorBox As ColorDialog = New ColorDialog() Private Sub cmdTextButton_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles cmdTextButton.Click Dim result As DialogResult result = colorBox.ShowDialog() If result = DialogResult.Cancel Then Return End If cmdBackgroundButton.ForeColor = colorBox.Color cmdTextButton.ForeColor = colorBox.Color End Sub Private Sub cmdBackgroundButton_Click( _ ByVal sender As System.Object, _ ByVal e As System.EventArgs) _ Handles cmdBackgroundButton.Click Dim result As DialogResult colorBox.FullOpen = True result = colorBox.ShowDialog() If result = DialogResult.Cancel Then Return End If Me.BackColor = colorBox.Color End Sub
End Class</source>