This example demonstrates the usage of the DisplayMask and DisplayPromptChar properties for RadMaskedTextBox .

<rad:radmaskedtextbox
  DisplayFormatPosition="Right"
  HideOnBlur="true"
  EmptyMessage=""
  style="TEXT-ALIGN:right"
  runat="server"
  id="Radmaskedtextbox2"
  Mask="#########"
  DisplayMask="#######.##"
  DisplayPromptChar=" " />