By default the drag handle of RadSlider is moved one tick at a time and the number of ticks and their type depend on the value of the SmallChange
properties as described in the following demo: http://demos.telerik.com/aspnet-ajax/slider/examples/ticks/defaultcs.aspx
As for allowing the slider value only to be incremented, you can use the OnClientValueChanging
event for this purpose: http://www.telerik.com/help/aspnet-ajax/slider-client-side-onclientvaluechanging.html
. First, you can compare the results of the get_oldValue
and the get_newValue
method of the event arguments parameter. If the old value is greater than the new value of the slider (the value is decreased), you can call set_cancel(true)
similarly to the example in the help article and the value of the slider will not change.