not select cell

Nov 7, 2012 at 11:56 AM

When I write:

grDetail.FixedColumns = 3;

And run. On the form, I can't select cell[1,1] by mouse or keyboard, but I can select cell[1,2]

When I write:

grDetail.FixedColumns = 6;

And run. On the form, I can't select cell[1,1]; cell[1,2]; cell[1,3]; cell[1,4] by mouse or keyboard, but I can select cell[1,5]

Help me. Thanks