Find inner visual element : UI Element « Windows Presentation Foundation « VB.Net






Find inner visual element

Find inner visual element
       

<Window x:Class="VisualTree.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="VisualTree" Height="300" Width="300">
  
    <Grid>
      <Button Click="MyClickEvent" Name="btnGo">
        <TextBox Width="173" Height="27" Name="txt">
        </TextBox>        
      </Button>      
    </Grid>  
</Window>

//File:Window.xaml.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes


Namespace VisualTree
  Public Partial Class Window1
    Inherits System.Windows.Window

    Public Sub New()
      InitializeComponent()
    End Sub

    Private Sub MyClickEvent(sender As Object, e As RoutedEventArgs)
      Dim desiredNode As Object = btnGo.FindName("txt")
      If TypeOf desiredNode Is TextBox Then
        Dim desiredChild As TextBox = TryCast(desiredNode, TextBox)
        desiredChild.Background = Brushes.Green
      End If
    End Sub

  End Class
End Namespace

   
    
    
    
    
    
    
  








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