Thumb.DragStarted Event
Important
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Occurs when a Thumb control receives logical focus and mouse capture.
public:
event System::Windows::Controls::Primitives::DragStartedEventHandler ^ DragStarted;
public event System.Windows.Controls.Primitives.DragStartedEventHandler DragStarted;
member this.DragStarted : System.Windows.Controls.Primitives.DragStartedEventHandler
Public Custom Event DragStarted As DragStartedEventHandler
The following example shows how to assign an event handler for the DragStarted event to a Thumb control, and how to define the event handler. For the complete sample, see Thumb Drag Functionality Sample.
<Thumb Name="myThumb" Canvas.Left="80" Canvas.Top="80" Background="Blue"
Width="20" Height="20" DragDelta="onDragDelta"
DragStarted="onDragStarted" DragCompleted="onDragCompleted"
/>
void onDragStarted(object sender, DragStartedEventArgs e)
{
myThumb.Background = Brushes.Orange;
}
Private Sub onDragStarted(ByVal sender As Object, ByVal e As DragStartedEventArgs)
myThumb.Background = Brushes.Orange
End Sub
The Thumb control receives focus and mouse capture when the user presses the left mouse button while pausing the mouse pointer over the Thumb.
Item | Value |
---|---|
Identifier field | DragStartedEvent |
Routing strategy | Bubbling |
Delegate | DragStartedEventHandler |
Product | Versions |
---|---|
.NET Framework | 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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