Hi

whats the best way to show only in some rows a button ina a grid column,.

When setting the columnstyle to 

Infragistics.Win.UltraWinGrid.ColumnStyle.Button 

dann on each row i can see a button

to remove the button on the rows which shouldn't have one i was only sucessfull in hiding the button. but that looks strange because the place of the hidden column doesn't have the row background (s. attached image). Instead theres a grey rectangles. (s. image)

I also tried to not set the appearance of the column but change Style to button when the row is prepared but then i never see button.

Does somebody have any advice / example which has buttons only on some rows?