how can i customise the width of the cell which are the part of uitableview(grouped) in iphone?

How can I customise the width of cells that are the part o开发者_C百科f a uitableview(grouped) in iPhone?

CGRect frame = cell.frame;
frame.size.width = 123f;
cell.frame = frame;

you can't, all you can do is resizing the table view and adding it as a subview to a view