I need to dynamically set the ReadOnly property of a boundcolumn in a datagrid based on a condition in the code. For instance, when displaying a grid of measurements, I show the category and the months of Jan thru Dec along with an Edit command button for each row. I want to be able to protect the columns for future months so the user doesn't enter data there. I cannot seem to find a property of the datagrid that lets me do this @ runtime.