How to get the selected value of a RadSlider using Request.Form?

[Pooya]

How could I get the selected value of a RadSlider using Request.Form?

Request.Form.Get("MainContent_RadSlider_Ticks_ClientState")

returns:

{"value":2,"selectionStart":2,"selectionEnd":0,"isSelectionRangeEnabled":false,"orientation":0,"smallChange":1,"largeChange":1,"trackMouseWheel":true,"showDragHandle":true,"showDecreaseHandle":true,"showIncreaseHandle":true,"width":"150px","height":"40px","animationDuration":50,"minimumValue":1,"maximumValue":7,"trackPosition":2,"liveDrag":true,"dragText":"Drag","thumbsInteractionMode":1}

What is the name "MainContent_RadSlider_Ticks_ClientState" and how quickly could I get the selected value which is 2 here?

Thanks,

[Pooya]

found it, it has to be deserized:

          public static decimal ExtractRadSliderValue(HttpRequest request, string radSliderClientId)
        {
            var clientStateString = ExtractStringValue(request, radSliderClientId + PostfixForRadControlId);
            var clientState = new JavaScriptSerializer().Deserialize<RadSlider>(clientStateString);
            return clientState.Value;
        }