Get selected item count from Listbox : ListBox « Windows Presentation Foundation « VB.Net

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VB.Net » Windows Presentation Foundation » ListBox Screenshots  Get selected item count from Listbox       <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         x:Class="AboutDialog" ListBox.SelectionChanged="ListBox_SelectionChanged"         Button.Click="Button_Click"         Title="About WPF Unleashed" SizeToContent="WidthAndHeight"         Background="OrangeRed">   <StackPanel>     <Label FontWeight="Bold" FontSize="20" Foreground="White">       WPF     </Label>     <Label>License</Label>     <Label>Installed Dll:</Label>     <ListBox>       <ListBoxItem>1</ListBoxItem>       <ListBoxItem>2</ListBoxItem>       <ListBoxItem>3</ListBoxItem>       <ListBoxItem>4</ListBoxItem>       <ListBoxItem>5</ListBoxItem>       <ListBoxItem>6</ListBoxItem>       <ListBoxItem>7</ListBoxItem>       <ListBoxItem>8</ListBoxItem>       <ListBoxItem>9</ListBoxItem>     </ListBox>     <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">       <Button MinWidth="75" Margin="10">Help</Button>       <Button MinWidth="75" Margin="10">OK</Button>     </StackPanel>     <StatusBar>test</StatusBar>   </StackPanel> </Window> //File:Window.xaml.vb Imports System.Windows Imports System.Windows.Controls Public Partial Class AboutDialog   Inherits Window   Public Sub New()     InitializeComponent()   End Sub   Private Sub ListBox_SelectionChanged(sender As Object, e As SelectionChangedEventArgs)     If e.AddedItems.Count > 0 Then       MessageBox.Show("You just selected " & Convert.ToString(e.AddedItems(0)))     End If   End Sub   Private Sub Button_Click(sender As Object, e As RoutedEventArgs)     MessageBox.Show("You just clicked " & Convert.ToString(e.Source))   End Sub End Class                            Related examples in the same category 1. External ListBox style 2. Define ListBox template 3. Set selected index for ListBox 4. Bind String Array Resource to ListBox 5. ListBox Selected Index, Item, Value 6. ListBox and SelectionMode 7. ListView using GridView.HeaderTemplate and GridViewColumn.CellTemplate properties 8. Load the Items in a ListBox Asynchronously 9. Change the Appearance of Alternate Items in a List 10. Change the Appearance of a List Item When It's Selected 11. Use Data Templates to Display Bound Data 12. CheckBox List 13. Convert the contents of a ListBoxItem to an instance of GridLength by using GridLengthConverter 14. Use the FontSizeConverter class to convert the content of a ListBoxItem to a value that represents the size of a font. 15. ListBox SelectionChanged Event 16. ListBox SelectionMode=Single 17. Get Selected Item from ListBox 18. ListBox selection changed event 19. Different Font Family and Size for each ListBoxItem 20. Handles ListBoxItem Selected events for the ListBoxItems in the inner ListBox. 21. Use Panel as a ListBoxItem 22. Create a ListBoxItem, set font, content, add the ListBoxItem to the ListBox 23. Select All ListBox Items 24. Create a style that will produce a horizontal ListBox. 25. Convert contents of a ListBoxItem to an instance of Thickness by using the ThicknessConverter 26. DataTrigger, ListBox and user object 27. Add selected file to ListBox 28. ListBox with Image item 29. Get selecte item from ListBox 30. List box with text and non-text content in the list box items. 31. This list box allows multiple user selections. 32. List box that uses data binding to populate the list box items. 33. This list box allows items to be selected in groups by using the SHIFT key and mouse or the CTRL key and space key. 34. Change Height 35. Change MinHeight 36. View and Select Items Using a List 37. Set text to TextBlock for selected list item 38. Iterate through the selected items and remove each one 39. Ensure there is at least one item selected 40. Select All and unselect all 41. Get Item At Index Position [0]