Move to point

When the IsMoveToPointEnabled property is set to true and you click somewhere on the track, the thumb will move directly to the point of click, ignoring the LargeChange property.

<telerik:RadSlider Maximum="10" IsMoveToPointEnabled="True"/> 

Silverlight RadSlider Move To Point Enabled

<telerik:RadSlider IsMoveToPointEnabled="True"  
           IsSelectionRangeEnabled="True" 
           Maximum="10" 
           SelectionEnd="5" 
           SelectionStart="3" /> 

Silverlight RadSlider Move To Point Selection

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