Hi guys.

I have a columns storing a string like HHA121311 for display purposes historically the user is used to seeing HHA-1213-11

How can I show that format (mask) in the grid cells of that column?

For normal entry forms, it's easy to use the MaskedTextbox, and I also have found how to subclass it to enabled it to be part of the DataGridView but the main problem I'm facing with that approach is that it only displays the mask for the current cell and in edit mode, and this grid is read only and I want to show the format for all the visible cells of that column.

I don't want to change the string in the table column, or create another column for it, since it will require change in several places of the application, and I'm hoping there's an easier way of achieving this.

Thanks in advance.

Luis