Get selecte item from ListBox : ListBox « Windows Presentation Foundation « VB.Net

1. VB.Net
2. Windows Presentation Foundation
3. ListBox

Get selecte item from ListBox

     


<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="WpfApplication1.CompileXamlWindow.CompileXamlWindow"
        Title="Compile XAML Window" 
        SizeToContent="WidthAndHeight" 
        ResizeMode="CanMinimize">
    <StackPanel>
        <Button HorizontalAlignment="Center" Margin="24" Click="ButtonOnClick">
            Click
        </Button>
        <Ellipse Name="elips" Width="200" Height="100" Margin="24" Stroke="Black"/>
        <ListBox Name="lstbox" Width="150" Height="150" Margin="24" SelectionChanged="ListBoxOnSelection" />
    </StackPanel>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.Reflection
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Input
Imports System.Windows.Media

Namespace WpfApplication1.CompileXamlWindow
  Public Partial Class CompileXamlWindow
    Inherits Window

    Public Sub New()
      InitializeComponent()

      For Each prop As PropertyInfo In GetType(Brushes).GetProperties()
        lstbox.Items.Add(prop.Name)
      Next
    End Sub
    Private Sub ButtonOnClick(sender As Object, args As RoutedEventArgs)
      Dim btn As Button = TryCast(sender, Button)
      MessageBox.Show(Convert.ToString(btn.Content) & "' has been clicked.")
    End Sub
    Private Sub ListBoxOnSelection(sender As Object, args As SelectionChangedEventArgs)
      Dim lstbox As ListBox = TryCast(sender, ListBox)
      Dim strItem As String = TryCast(lstbox.SelectedItem, String)
      Dim prop As PropertyInfo = GetType(Brushes).GetProperty(strItem)
      elips.Fill = DirectCast(prop.GetValue(Nothing, Nothing), Brush)
    End Sub
  End Class
End Namespace

   
    
    
    
    
  

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