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SelectorSelectionChanged Event
 

Occurs when the selection of a Selector changes.

Namespace:   System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

public event SelectionChangedEventHandler SelectionChanged
public:
event SelectionChangedEventHandler^ SelectionChanged {
	void add(SelectionChangedEventHandler^ value);
	void remove(SelectionChangedEventHandler^ value);
}
member SelectionChanged : IEvent<SelectionChangedEventHandler,
    SelectionChangedEventArgs>
Public Event SelectionChanged As SelectionChangedEventHandler

This event occurs whenever there is a change to a selection. A selection can be changed not only by user interaction but also by binding as well as other set values.

Identifier field

SelectionChangedEvent

Routing strategy

Bubbling

Delegate

SelectionChangedEventHandler

The following example shows how to attach the SelectionChanged event to a list box control.

<TextBox Name="tb" Width="140" Height="30"></TextBox>
<ListBox Name="lb" Width="100" Height="55" SelectionChanged="PrintText" SelectionMode="Single">
  <ListBoxItem>Item 1</ListBoxItem>
  <ListBoxItem>Item 2</ListBoxItem>
  <ListBoxItem>Item 3</ListBoxItem>
  <ListBoxItem>Item 4</ListBoxItem>
  <ListBoxItem>Item 5</ListBoxItem>
  <ListBoxItem>Item 6</ListBoxItem>
  <ListBoxItem>Item 7</ListBoxItem>
  <ListBoxItem>Item 8</ListBoxItem>
  <ListBoxItem>Item 9</ListBoxItem>
  <ListBoxItem>Item 10</ListBoxItem>
</ListBox>

The following example shows how to handle the SelectionChanged event.

void PrintText(object sender, SelectionChangedEventArgs args)
{
    ListBoxItem lbi = ((sender as ListBox).SelectedItem as ListBoxItem);
    tb.Text = "   You selected " + lbi.Content.ToString() + ".";
}
Private Sub PrintText(ByVal sender As Object, ByVal e As SelectionChangedEventArgs)

    Dim lbsender As ListBox
    Dim li As ListBoxItem

    lbsender = CType(sender, ListBox)
    li = CType(lbsender.SelectedItem, ListBoxItem)
    tb.Text = "   You selected " & li.Content.ToString & "."
End Sub
.NET Framework
Available since 3.0
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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