VB.Net/GUI/Control Inheritance

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Add components to inherited form

<source lang="vbnet"> Imports System Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Resources Imports System.Drawing Imports System.Drawing.Drawing2D Public Class BaseForm 

   Inherits System.Windows.Forms.Form
  1. 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.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.
   Friend WithEvents menuItem1 As System.Windows.Forms.MenuItem
   Friend WithEvents fileExitMenuItem As System.Windows.Forms.MenuItem
   Protected WithEvents statusBar As System.Windows.Forms.StatusBar
   Friend WithEvents menuItem3 As System.Windows.Forms.MenuItem
   Friend WithEvents helpAboutMenuItem As System.Windows.Forms.MenuItem
   Friend WithEvents mainMenu1 As System.Windows.Forms.MainMenu
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.menuItem1 = New System.Windows.Forms.MenuItem()
       Me.fileExitMenuItem = New System.Windows.Forms.MenuItem()
       Me.statusBar = New System.Windows.Forms.StatusBar()
       Me.menuItem3 = New System.Windows.Forms.MenuItem()
       Me.helpAboutMenuItem = New System.Windows.Forms.MenuItem()
       Me.mainMenu1 = New System.Windows.Forms.MainMenu()
       Me.SuspendLayout()
       "
       "menuItem1
       "
       Me.menuItem1.Index = 0
       Me.menuItem1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.fileExitMenuItem})
       Me.menuItem1.Text = "&File"
       "
       "fileExitMenuItem
       "
       Me.fileExitMenuItem.Index = 0
       Me.fileExitMenuItem.Text = "E&xit"
       "
       "statusBar
       "
       Me.statusBar.Location = New System.Drawing.Point(0, 72)
       Me.statusBar.Name = "statusBar"
       Me.statusBar.Size = New System.Drawing.Size(176, 22)
       Me.statusBar.TabIndex = 1
       Me.statusBar.Text = "Ready"
       "
       "menuItem3
       "
       Me.menuItem3.Index = 1
       Me.menuItem3.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.helpAboutMenuItem})
       Me.menuItem3.Text = "&Help"
       "
       "helpAboutMenuItem
       "
       Me.helpAboutMenuItem.Index = 0
       Me.helpAboutMenuItem.Text = "&About..."
       "
       "mainMenu1
       "
       Me.mainMenu1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.menuItem1, Me.menuItem3})
       "
       "BaseForm
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(176, 94)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.statusBar})
       Me.Menu = Me.mainMenu1
       Me.Name = "BaseForm"
       Me.Text = "BaseForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region
   Private Sub fileExitMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles fileExitMenuItem.Click
       Me.Close()
   End Sub
   Private Sub helpAboutMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles helpAboutMenuItem.Click
       MessageBox.Show("Message?", "About")
   End Sub

End Class

Public Class ExplorerForm 

   Inherits BaseForm
  1. 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.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.
   Friend WithEvents treeView1 As System.Windows.Forms.TreeView
   Friend WithEvents splitter1 As System.Windows.Forms.Splitter
   Friend WithEvents listView1 As System.Windows.Forms.ListView
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Dim ListViewItem1 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Derives from BaseForm", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Dim ListViewItem2 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Overrides Text property", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Dim ListViewItem3 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Overrides Size property", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Dim ListViewItem4 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Adds a TreeView control", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Dim ListViewItem5 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Adds a Splitter control", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Dim ListViewItem6 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem(New System.Windows.Forms.ListViewItem.ListViewSubItem() {New System.Windows.Forms.ListViewItem.ListViewSubItem(Nothing, "-Adds a ListView control", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)))}, -1)
       Me.treeView1 = New System.Windows.Forms.TreeView()
       Me.splitter1 = New System.Windows.Forms.Splitter()
       Me.listView1 = New System.Windows.Forms.ListView()
       Me.SuspendLayout()
       "
       "statusBar
       "
       Me.statusBar.Location = New System.Drawing.Point(0, 123)
       Me.statusBar.Size = New System.Drawing.Size(280, 22)
       Me.statusBar.Visible = True
       "
       "treeView1
       "
       Me.treeView1.Dock = System.Windows.Forms.DockStyle.Left
       Me.treeView1.ImageIndex = -1
       Me.treeView1.Name = "treeView1"
       Me.treeView1.Nodes.AddRange(New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node0"), New System.Windows.Forms.TreeNode("Node1", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node4", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node5", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node6")})})}), New System.Windows.Forms.TreeNode("Node2"), New System.Windows.Forms.TreeNode("Node3")})
       Me.treeView1.SelectedImageIndex = -1
       Me.treeView1.Size = New System.Drawing.Size(121, 123)
       Me.treeView1.TabIndex = 2
       "
       "splitter1
       "
       Me.splitter1.Location = New System.Drawing.Point(121, 0)
       Me.splitter1.Name = "splitter1"
       Me.splitter1.Size = New System.Drawing.Size(3, 123)
       Me.splitter1.TabIndex = 3
       Me.splitter1.TabStop = False
       "
       "listView1
       "
       Me.listView1.Dock = System.Windows.Forms.DockStyle.Fill
       Me.listView1.Items.AddRange(New System.Windows.Forms.ListViewItem() {ListViewItem1, ListViewItem2, ListViewItem3, ListViewItem4, ListViewItem5, ListViewItem6})
       Me.listView1.Location = New System.Drawing.Point(124, 0)
       Me.listView1.Name = "listView1"
       Me.listView1.Size = New System.Drawing.Size(156, 123)
       Me.listView1.TabIndex = 4
       Me.listView1.View = System.Windows.Forms.View.List
       "
       "ExplorerForm
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(280, 145)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.listView1, Me.splitter1, Me.treeView1, Me.statusBar})
       Me.Name = "ExplorerForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region

End Class

Public Class MainClass 

   Shared Sub Main()
       Dim myform As Form = New ExplorerForm()
       Application.Run(myform)
   End Sub

End Class 

      </source>


Inherits from Base Form

<source lang="vbnet"> Imports System Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Resources Imports System.Drawing Imports System.Drawing.Drawing2D Public Class BaseForm 

   Inherits System.Windows.Forms.Form
  1. 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.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.
   Friend WithEvents menuItem1 As System.Windows.Forms.MenuItem
   Friend WithEvents fileExitMenuItem As System.Windows.Forms.MenuItem
   Protected WithEvents statusBar As System.Windows.Forms.StatusBar
   Friend WithEvents menuItem3 As System.Windows.Forms.MenuItem
   Friend WithEvents helpAboutMenuItem As System.Windows.Forms.MenuItem
   Friend WithEvents mainMenu1 As System.Windows.Forms.MainMenu
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.menuItem1 = New System.Windows.Forms.MenuItem()
       Me.fileExitMenuItem = New System.Windows.Forms.MenuItem()
       Me.statusBar = New System.Windows.Forms.StatusBar()
       Me.menuItem3 = New System.Windows.Forms.MenuItem()
       Me.helpAboutMenuItem = New System.Windows.Forms.MenuItem()
       Me.mainMenu1 = New System.Windows.Forms.MainMenu()
       Me.SuspendLayout()
       "
       "menuItem1
       "
       Me.menuItem1.Index = 0
       Me.menuItem1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.fileExitMenuItem})
       Me.menuItem1.Text = "&File"
       "
       "fileExitMenuItem
       "
       Me.fileExitMenuItem.Index = 0
       Me.fileExitMenuItem.Text = "E&xit"
       "
       "statusBar
       "
       Me.statusBar.Location = New System.Drawing.Point(0, 72)
       Me.statusBar.Name = "statusBar"
       Me.statusBar.Size = New System.Drawing.Size(176, 22)
       Me.statusBar.TabIndex = 1
       Me.statusBar.Text = "Ready"
       "
       "menuItem3
       "
       Me.menuItem3.Index = 1
       Me.menuItem3.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.helpAboutMenuItem})
       Me.menuItem3.Text = "&Help"
       "
       "helpAboutMenuItem
       "
       Me.helpAboutMenuItem.Index = 0
       Me.helpAboutMenuItem.Text = "&About..."
       "
       "mainMenu1
       "
       Me.mainMenu1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.menuItem1, Me.menuItem3})
       "
       "BaseForm
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(176, 94)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.statusBar})
       Me.Menu = Me.mainMenu1
       Me.Name = "BaseForm"
       Me.Text = "BaseForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region
   Private Sub fileExitMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles fileExitMenuItem.Click
       Me.Close()
   End Sub
   Private Sub helpAboutMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles helpAboutMenuItem.Click
       MessageBox.Show("Message?", "About")
   End Sub

End Class

Public Class EditorForm 

   Inherits BaseForm
  1. 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.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.
   Friend WithEvents textBox1 As System.Windows.Forms.TextBox
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.textBox1 = New System.Windows.Forms.TextBox()
       Me.SuspendLayout()
       "
       "statusBar
       "
       Me.statusBar.Location = New System.Drawing.Point(0, 71)
       Me.statusBar.Text = "Text on a status bar"
       Me.statusBar.Visible = True
       "
       "textBox1
       "
       Me.textBox1.Dock = System.Windows.Forms.DockStyle.Fill
       Me.textBox1.Multiline = True
       Me.textBox1.Name = "textBox1"
       Me.textBox1.Size = New System.Drawing.Size(176, 71)
       Me.textBox1.TabIndex = 2
       Me.textBox1.Text = "Text in a text box."
       "
       "EditorForm
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(176, 93)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.textBox1, Me.statusBar})
       Me.Name = "EditorForm"
       Me.Text = "EditorForm"
       Me.ResumeLayout(False)
   End Sub
  1. End Region

End Class

Public Class MainClass 

   Shared Sub Main()
       Dim myform As Form = New EditorForm()
       Application.Run(myform)
   End Sub

End Class 

      </source>
Источник — «http://vbex.ru/index.php?title=VB.Net/GUI/Control_Inheritance&oldid=565»