Thumb.DragStarted Event

Reference

Definition

Namespace:: System.Windows.Controls.Primitives

Assembly:: PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

Event Type

DragStartedEventHandler

Examples

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

Remarks

The Thumb control receives focus and mouse capture when the user presses the left mouse button while pausing the mouse pointer over the Thumb.

Routed Event Information


Identifier field	DragStartedEvent
Routing strategy	Bubbling
Delegate	DragStartedEventHandler

Applies to

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