On May 1, 2014, at 17:25 , Varun Chandramohan <varun.chandramo...@wontok.com> wrote:
> Yes I have implemented tableView:isGroupRow. > - (BOOL)tableView:(NSTableView *)tableView isGroupRow:(NSInteger)row { > DesktopEntity *entity = _tableContents[row]; > if ([entity isKindOfClass:[DesktopFolderEntity class]]) { > return YES; > } > return NO; > } > > What is wrong with this? Nothing at all! Rows corresponding to a ‘DesktopFolderEntity’ are group rows, and all the others are not. > Also I implemented > - (NSView *)tableView:(NSTableView *)tableView > viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row { > DesktopEntity *entity = _tableContents[row]; > if ([entity isKindOfClass:[DesktopFolderEntity class]]) { > NSTableCellView *groupCell = [tableView > makeViewWithIdentifier:@"GroupCell" owner:self]; > [groupCell.textField setStringValue:entity.name]; > return groupCell; > } > return nil; > } > > Are you saying I should not return nil here? Well, you are returning nil for rows that aren’t ‘DesktopFolderEntity’, which doesn’t seem a good idea, but that isn’t the issue you asked about. In this code, you should return a view with identifier “GroupCell” — as you have done — for rows that are ‘DesktopFolderEntity’. Since these are indeed group rows, this correctly gives them the group-row appearance (the one with the gray background). That is, your table view is showing exactly what you asked it to show. Your ‘tableView:viewForTableColumn:’ method is, however, missing some code. You need to return a view for non-group rows (that would probably be a view with identifier ‘DataCell’, if you have the default setup in IB), and you need to test tableColumn (and possibly tableColumn.identifier). (‘tableColumn == nil’ means that you’re being asked for a group-row view. Otherwise you’re being asked for a per-column view.) _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com