Użytkownik John napisał: > Hi, > > I have taken a little time to review what JacekK is doing with his example > that shows his issue (ticket 1314). The record pointer moves (incorrectly) > when he selects the browse tab. > > I noticed that he was not executing a requery() as one of the final items from > a list of items I thought were required. In his second example he added a > dForm.RequeryOnLoad which calls "dabo.ui.callAfter(self.requery)". > > If I add the method afterInitAll() (to his second example) and issue a > self.refresh() all works as I would expect - that is > 1. the data is displayed correctly in textboxes > 2. the textboxes relate to the grid correctly (on the browse tab) > 3. the VCR controls work correctly moving the record pointer. > > These facts bring up several questions in my mind. > > The framework requires that a requery() be executed after all the UI is > completed it's layout - is that correct? Therefore, there is a timing issue. > If it is correct (and I believe it is) why don't the doc's say so somewhere? > Is there a reason we don't issue the requery() and refresh() immediately > after the UI layout? > > JacekK form creates the data dynamically for the bizobj. And after a > requery() the record pointer rest on the last record created. The bizobj has > no "order by" so I intuitively understood that it would be on the last > record entered. But then I started to question that thought. All other > demo's I've seen refresh the bizobj to the first record not the last. The > demo's always used real database examples or were hard coded datasets. Why, > would it make a difference? That is, what is causing the record pointer to > rest on the last record vs the first record? >
The row pointer is in middle of dataset, precisely, it points second row from the end in my example. Requery doesn't change anything because it restores pointer. Remember that controls on dPage object aren't istantiated while requery takes place. I think it's pure dGrid issue, not the general data handling issue. I noticed strange behaviour under debugger. Some grids works correctly, I mean there is no _onGridCellSelected() method call at instantiation for CurrentRow=-1. But there are few others where it happens and I don't know why. -- Regards Jacek Kałucki _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/dabo-dev Searchable Archives: http://leafe.com/archives/search/dabo-dev This message: http://leafe.com/archives/byMID/[email protected]
