Hello,
I want to close the Panes, and not just Hide them (put them in the ClosedPanes collection).
There is no CloseAction property on Pane, so how can i accomplish that?
I want to release the memory as the dynamically created documents/toolwindows are closed.
Thank you in advance,
Michael
Hi Michael,
do you really need to delete the closed panes? My point is that you could just set the panes Content to null in PaneClosed event so the memory of the content to be collected by the GC . Then the ContentPane object will resides in the ClosedPanes collection and eventually if you expect a lot of panes to be opened and closed you could reuse the already closed panes from the ClosedPanes collection.
This is just a suggestion. We could probably work to fix the workaround proposed by Nikola if you consider it more suitable.
Regards,
Hi Konstantin,
i had already implemented a reuse behavior of the closed panes, but i encountered the following problem.
1)I create a pane dynamicaly which is by default docked in the documents region.(I find/create a tabcontainerpane and add the pane to it's collection)
2)I docked it left in the xamdockmanager, and then i closed it.
3)I created another dynamic pane and i reused the previously closed pane. The pane should be shown again by default in the documents region.
4)I find/create a tabcontainerpane in the document regions and at the pane to it's collection.If OpenPane() method is not called, the ContainerPane won't show up.If i call the OpenPane() method it will show docked left (the before closed state of the Pane)
I would appreciate two quick fixes for both behaviors if applicable
I think that having common XAML codebase for WPF and SL , you should implement the CloseActionType property as WPF has... This will solve the above problems...
Konstantin,
We have the same problem with disposing the ContentPane. I took your example from above and after making a few small modifications. I was able to remove most of the references from the ContentPane but as shown from the Memory profiler below, TabPaneHeader is not allowing the ContentPane to be released. I also included the code below, This is causing a major memory leak in our application. I would really appraciate your help.
Regards
private void xamDockManager_PaneClosing(object sender, CancellablePaneEventArgs e) { e.Cancel = true; ContentPane cPane = e.Pane as ContentPane; UIElement fContent = (UIElement)(cPane).Content; //If content is Plan Details call closeform for cleanup if (fContent.GetType().Equals(typeof(PlanDetails))) ((PlanDetails)fContent).CloseForm();
//If content is Pivot Container call closeform for cleanup if (fContent.GetType().Equals(typeof(PivotContainer))) ((PivotContainer)fContent).CloseForm();
cPane.Content = null; xamDockManager.ActivePane = null;
if (e.Pane.IsFloating == true) e.Pane.IsFloating = false; if (cPane != null && cPane.IsPinned == false) { cPane.IsPinned = true; } if (this.xamDockManager.Panes.Contains(e.Pane)) { this.xamDockManager.Panes.Remove(e.Pane); return; } else if (e.Pane.OwnerPane is TabGroupPane) { (e.Pane.OwnerPane as TabGroupPane).Panes.Remove(e.Pane as ContentPane);
(e.Pane.OwnerPane as TabGroupPane).SelectedPane = null;
} else if (e.Pane.OwnerPane is SplitPane) (e.Pane.OwnerPane as SplitPane).Panes.Remove(e.Pane); }
Thanks,
i will be monitoring for a suggestion for the recycling behavior...
Hi MIchael,
sorry for the late response,
I have managed to reproduce the issue you've described and I logged a development issue about the panes that become floating when PaneClosing event is canceled, the bug id is #80435. The mem. leak issue id is 80351. I've asked Valerie to associate these bus with your support case so you can be notified when they are resolved.
I'll contact our dev team to see if there is a way to clear a pane's history(this is why after recycling the pane it is situated at its previous place) and go with the panes recycling workaround.
Hi,
i downloaded the sample and i reproduced it like this... (did not make any change...)
1)Docked "DCH 1" window to the left.
2)Docked "DCH 2" window below "DCH 1"
3)Close them... They will become floating...
PS
Sorry, what i meant was that by resetting the IsPinned and IsFloating flag, it worked as expected
I couldn't understand what you mean by this:
Indeed the unpinned and floating panes do not go to the XamDockManager collections' by unsetting the corresponding flag...
I am attaching my testing solution in which I was not able to reproduce the issue you've described.Could you take a look and modify it so I could be able to check it out.