How to dynamically change GridView column count?

[allopen]

I used a GridView with 3 columns, and I want to change che column count dynamically via user button click.
At first, I change the grid.cellWidth to change the columns, for example, if user want to display 2 columns, the code is:

@grid.cellWidth = grid.width/2;
@

but after this, when the user resize the Desktop window, the cells won't change size.
what did i miss?

[vittalonline]

hi Allopen

QWidget::resizeEvent() which you can reimplement in your widget.In this you can change the grid.celwidth.