Selector.SelectionChanged Event

Reference

Definition

Namespace:: System.Windows.Controls.Primitives

Assembly:: PresentationFramework.dll

Important

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Occurs when the selection of a Selector changes.

public:
 event System::Windows::Controls::SelectionChangedEventHandler ^ SelectionChanged;

public event System.Windows.Controls.SelectionChangedEventHandler SelectionChanged;

member this.SelectionChanged : System.Windows.Controls.SelectionChangedEventHandler

Public Custom Event SelectionChanged As SelectionChangedEventHandler

Event Type

SelectionChangedEventHandler

Examples

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

Remarks

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.

Routed Event Information

Item	Value
Identifier field	SelectionChangedEvent
Routing strategy	Bubbling
Delegate	SelectionChangedEventHandler

Applies to

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