is a type of RadInput
, and as you can see in the radtextbox with password mode cant save its state while post back
forum thread answered by Maria of Telerik (January 12, 2011): "The RadInput clear its value after each postback and this is by design due to security reasons."
So, you'd have to manually add the values to the ViewState or ControlState and reference them on the server-side. This could be a cumbersome task.
Hope this helps!