The C1SliderExtender control simplifies user input by providing a rich visual representation of numeric changes. The C1SliderExtender is a sliding selector that provides a simple, familiar way for end-users to choose a single value or a range of values in a predefined range at run time.
C1SliderExtender Markup
The following markup creates C1SliderExtender control. Set the TargetControlID property to attach the extender to a control.
<cc1:C1SliderExtender ID="TextBox1_C1SliderExtender" runat="server"
TargetControlID="TextBox1">
</cc1:C1SliderExtender>