Get selected item from ListBox : ListBox Selection « Windows Presentation Foundation « VB.Net Tutorial






<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
WPF Get Selecte Item From List Box








16.30.ListBox Selection
16.30.1.Set selected index for ListBoxSet selected index for ListBox
16.30.2.ListBox Selected Index, Item, ValueListBox Selected Index, Item, Value
16.30.3.ListBox and SelectionModeListBox and SelectionMode
16.30.4.Get selected item from ListBoxGet selected item from ListBox
16.30.5.Get selected item count from ListboxGet selected item count from Listbox
16.30.6.View and Select Items Using a ListView and Select Items Using a List
16.30.7.Set text to TextBlock for selected list itemSet text to TextBlock for selected list item
16.30.8.Select All and unselect allSelect All and unselect all
16.30.9.Get Selected Item from ListBox 2Get Selected Item from ListBox 2
16.30.10.Select All ListBox ItemsSelect All ListBox Items
16.30.11.This list box allows multiple user selections.This list box allows multiple user selections.
16.30.12.ListBox SelectionMode=SingleListBox SelectionMode=Single
16.30.13.ListBox selection changed eventListBox selection changed event