MaskedTextInput Width Not Correct

[WILLIAM]

Hi Telerik Team,

How do I make a MaskedTextInput use the width of a Column Width?  I have a column width=300.  With a regular textbox, the textbox fills the columns.  With no other changes except making the control a RadMaskedTextInput, the control shrinks to the size of the text plus enough space for the red X.  Shouldn't it fill the column as well?

Thanks!

[WILLIAM]

I think I found it.  HorizontalAlignment=Stretch.

Thanks!