Set Form State: MdiParent and IsMdiContainer
Imports System
Imports System.Windows.Forms
Public Class MainClass
Public Shared Main1 As New Form1()
Public Shared Main2 As New Form1()
Public Shared Child As New Form2()
Shared Sub Main()
Main1.Text = "Parent 2"
Main2.Text = "Parent 1"
Main1.Show()
Main2.Show()
Child.MdiParent = Main2
Child.Show()
Application.Run()
End Sub
End Class
Public Class Form1
Inherits System.Windows.Forms.Form
#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
Friend WithEvents MdiClient1 As System.Windows.Forms.MdiClient
'Required by the Windows Form Designer
Private components As System.ComponentModel.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.MdiClient1 = New System.Windows.Forms.MdiClient()
Me.SuspendLayout()
'
'MdiClient1
'
Me.MdiClient1.Dock = System.Windows.Forms.DockStyle.Fill
Me.MdiClient1.Name = "MdiClient1"
Me.MdiClient1.TabIndex = 0
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(384, 317)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.MdiClient1})
Me.IsMdiContainer = True
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
Application.Exit()
End Sub
End Class
Public Class Form2
Inherits System.Windows.Forms.Form
#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
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Button2 As System.Windows.Forms.Button
'Required by the Windows Form Designer
Private components As System.ComponentModel.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.
Friend WithEvents Button3 As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Button1 = New System.Windows.Forms.Button()
Me.Button2 = New System.Windows.Forms.Button()
Me.Button3 = New System.Windows.Forms.Button()
Me.SuspendLayout()
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(12, 20)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(88, 32)
Me.Button1.TabIndex = 0
Me.Button1.Text = "Become Parent"
'
'Button2
'
Me.Button2.Location = New System.Drawing.Point(12, 64)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(88, 32)
Me.Button2.TabIndex = 1
Me.Button2.Text = "Become Child of Parent1"
'
'Button3
'
Me.Button3.Location = New System.Drawing.Point(120, 64)
Me.Button3.Name = "Button3"
Me.Button3.Size = New System.Drawing.Size(88, 32)
Me.Button3.TabIndex = 2
Me.Button3.Text = "Become Child of Parent2"
'
'Form2
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 14)
Me.ClientSize = New System.Drawing.Size(260, 129)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button3, Me.Button2, Me.Button1})
Me.Font = New System.Drawing.Font("Tahoma", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Name = "Form2"
Me.Text = "Child"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Hide()
Me.MdiParent = Nothing
Me.IsMdiContainer = True
Me.Show()
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Hide()
Me.IsMdiContainer = False
Me.MdiParent = MainClass.Main2
Me.Show()
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Me.Hide()
Me.IsMdiContainer = False
Me.MdiParent = MainClass.Main1
Me.Show()
End Sub
End Class
Related examples in the same category
