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Thumb.DragStarted Event

Occurs when a Thumb control receives logical focus and mouse capture.

Namespace: System.Windows.Controls.Primitives
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public event DragStartedEventHandler DragStarted
/** @event */
public void add_DragStarted (DragStartedEventHandler value)

/** @event */
public void remove_DragStarted (DragStartedEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
<object DragStarted="DragStartedEventHandler" .../>

Identifier Field

DragStartedEvent

Routing Strategy

Bubbling

Delegate

DragStartedEventHandler

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

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 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;
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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