How can I resize the size of the cell.textLabel?

I want to resize the default textLabel of a UITableViewCell because I display a image at the right of the rows. I Tryed with this code but it doesn't works, and I don't understand why.

    - (UITableViewCe开发者_StackOverflow中文版ll *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
         //...
         cell.textLabel.frame = CGRectMake(5, 5, 100, 50);
         //...
    }

u should used custom label

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];

if (cell == nil) 
{

    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease];

    UILabel *Lbl = [[UILabel alloc]initWithFrame:CGRectMake(75.0f, 4.5f, 360.0f, 20.0f)]; 
    [cell.contentView addSubview:Lbl];
    [Lbl release];
}

I think that is impossible.

Make custom cell.

UILabel myTextLabel;

//Set Frame and do something.

[cell.contentView addSubview:myTextLabel]; 

textLabel is readonly property so we can't set frame..

@property(nonatomic,readonly,retain) UILabel      *textLabel __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);   // default is nil.  label will be created if necessary.
@property(nonatomic,readonly,retain) UILabel      *detailTextLabel __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);   // default is nil.  label will be created if necessary (and the current style supports a detail label).

use custom cell ...

You can not change a cell's textLabel's frame except or you go with custom cell and use UILabel, UIImageView as a subview of the cell.