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Slider.OnThumbDragStarted Method

Provides class handling for the DragStarted event that occurs when the user starts to drag the Thumb of the Slider.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected virtual void OnThumbDragStarted(
	DragStartedEventArgs e
)

In addition to the default processing of the DragStarted event, this implementation displays a tooltip that shows the Value of the Slider when the AutoToolTipPlacement property is not set to None.

This implementation does not handle the DragStarted event. The value of the Handled property of the DragCompletedEventArgs is not changed.

This method can be overridden to customize the way a Slider processes Thumb movements.

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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