How to display formatted text with Mask Input Column?

[Lawrence]

I'm using the RadGridView GridViewMaskedInputColumn with a mask for a phone number "(###) ###-####", and I would like to have the phone number display with the mask when not being edited in the grid.  I can seem to get the "DataFormatString to work.  I've tried DataFormatString="{}{0:(###) ###-####}" with no luck.  Thanks!

[Lawrence]

Well, after changing the data type to double, it worked fine.