Remove Control from a Panel : Panel « Windows Presentation Foundation « VB.Net Tutorial

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VB.Net Tutorial » Windows Presentation Foundation » Panel 
16.41.2.Remove Control from a Panel
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="ElemCollMethods.Pane1"
    WindowTitle="UI Element Collection Methods Sample">
 <StackPanel>
    <TextBlock Name="txt" FontSize="16">UI Element Collection - Methods</TextBlock>

    <TabControl>
        <TabItem MouseLeftButtonUp="RemoveButton">
            <TabItem.Header>Remove Control</TabItem.Header>
        </TabItem>
    </TabControl>
    <StackPanel Name="sp1"></StackPanel>

 </StackPanel>
</Page>

//File:Window.xaml.vb
Imports System
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Documents
Imports System.Windows.Navigation
Imports System.Windows.Shapes
Imports System.Windows.Data
Imports System.Windows.Input

Namespace ElemCollMethods

  Public Partial Class Pane1
    Inherits Page
    Private btn As System.Windows.Controls.Button, btn1 As System.Windows.Controls.Button, btn2 As System.Windows.Controls.Button, btn3 As System.Windows.Controls.Button

    Private Sub RemoveButton(sender As Object, e As MouseButtonEventArgs)
      sp1.Children.Clear()
      btn = New Button()
      btn.Content = "Click to insert button"
      sp1.Children.Add(btn)
      AddHandler btn.Click, (AddressOf InsertControls)
      btn1 = New Button()
      btn1.Content = "Click to insert button"
      sp1.Children.Add(btn1)
      AddHandler btn1.Click, (AddressOf InsertControls)
      If (sp1.Children.IndexOf(btn>= 0OrElse (sp1.Children.IndexOf(btn1>= 0OrElse (sp1.Children.IndexOf(btn2>= 0OrElse (sp1.Children.IndexOf(btn3>= 0Then
        sp1.Children.RemoveAt(0)
      End If
    End Sub
    Private Sub InsertControls(sender As Object, e As RoutedEventArgs)
      btn2 = New Button()
      btn2.Content = "Inserted Button"
      sp1.Children.Insert(1, btn2)
    End Sub
  End Class
End Namespace
WPF Remove Control From A Panel
16.41.Panel
16.41.1.Add a control to a PanelAdd a control to a Panel
16.41.2.Remove Control from a PanelRemove Control from a Panel
16.41.3.Insert Button to a PanelInsert Button to a Panel
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