How to uncheck all rows using UITableViewCellAccessoryCheckmark

Question

I\'ve got a UITableView with each row containing a checkbox using UITableViewCellAccessoryCheckmark. I can\'t figure out how to uncheck all the checkbo

Answer 1

You're probably setting some kind of property with this method. So what i do is:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // 1. first unsetting the property
    [object someProperty:nil];

    // 2. call the reloadData method to uncheck all the checkmarks
    [tableView reloadData];

    // 3. check the selected cell
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    [cell setAccessoryType:UITableViewCellAccessoryCheckmark];

    // 4. set the checked property
    [object setSomeProperty:[indexpath row]];
}

And in my cellForRowAtIndexPath methods i got something like the following code:

    if([object someProperty] == [indexpath row]){
        [cell setAccessoryType:UITableViewCellAccessoryCheckmark];        
    } else {
        [cell setAccessoryType:UITableViewCellAccessoryNone];
    }