Reference name defined in Xaml in vb file

     
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="WpfApplication1.IndexOfSample" 
  WindowTitle="UIElementCollection IndexOf Sample">
    <DockPanel Name="ParentElement">
        <TextBlock DockPanel.Dock="Top" Name="TxtDisplay"></TextBlock>

        <Button DockPanel.Dock="Top" Click="FindIndex">What is the Index Number
            of the Element Just Added?</Button>
        <DockPanel Name="MainDisplayPanel">
            <TextBlock DockPanel.Dock="Top">Text 1</TextBlock>
            <TextBlock DockPanel.Dock="Top">Text 2</TextBlock>
        </DockPanel>
    </DockPanel>
</Page>

//File:Window.xaml.vb

Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Documents
Namespace WpfApplication1

  Public Partial Class IndexOfSample


    Private Sub FindIndex(sender As Object, e As RoutedEventArgs)
      Dim newText As New TextBlock()
      MainDisplayPanel.Children.Add(newText)
      newText.Text = "New element #"
      DockPanel.SetDock(newText, Dock.Top)
      TxtDisplay.Text = MainDisplayPanel.Children.IndexOf(newText) + ""
    End Sub
  End Class
End Namespace

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Reference name defined in Xaml in vb file : Xaml « Windows Presentation Foundation « VB.Net

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