set width of cell in grouped uitableview

Question

I am trying this code to set width of cell when table is load. but it is properly work in didSelectRowAtIndexPath method but not work in cellForRowAtIndexPath help me.

cell.frame = CGRectMake(50, cell.frame.origin.y, 275, 44)

so when we click on cell it will change the width not directly when it is load.. yes i have tried also if (cell == nil) { cell = [[UITableViewCell alloc] initWithFrame:CGRectMake( 30, cell.frame.origin.y, 275, 44)]; }

see my all code of table methods

#pragma mark - Table Method

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 44;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 7;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return ((section == 0) ?
            3 : (section == 1) ?
            1 : (section == 2) ?
            1 : (section == 3) ?
            2 : (section == 4) ?
            1 : (section == 5) ?
            1 : (section == 6) ?
            1 : 1);
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithFrame:CGRectMake( 30, cell.frame.origin.y, 275, 44)];
    }
    if (indexPath.section == 0) {

       cell.frame = CGRectMake(50, cell.frame.origin.y, 275, 44);
        return cell;

    }
   if (indexPath.section >= 1)
    {

        cell.frame = CGRectMake( 30, cell.frame.origin.y, 200, 44);

    cell.textLabel.text=@"Dhaval";
    }

        return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell =[tableview cellForRowAtIndexPath:indexPath];


    cell.frame = CGRectMake(50, cell.frame.origin.y, 275, 44);

}