Export (0) Print
Expand All

Thumb.DragStarted Event

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

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

'Declaration
Public Event DragStarted As DragStartedEventHandler
'Usage
Dim instance As Thumb 
Dim handler As DragStartedEventHandler 

AddHandler instance.DragStarted, handler
<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 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"
      />
Private Sub onDragStarted(ByVal sender As Object, ByVal e As DragStartedEventArgs)
    myThumb.Background = Brushes.Orange
End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

Community Additions

ADD
Show:
© 2015 Microsoft