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POWrapPanel.Children.Add(): System.ArgumentException: The parameter is incorrect
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  1. POWrapPanel.Children.Add(): System.ArgumentException: The parameter is incorrect
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    copied!<p>I have a WrapPanel in a Windows Phone (7.1) Solution, where I add and delete cyclic user controls. Most time it work but sometimes I get the following error:</p> <pre><code>"The parameter is incorrect. " at MS.Internal.XcpImports.CheckHResult(UInt32 hr) at MS.Internal.XcpImports.Collection_AddValue[T](PresentationFrameworkCollection`1 collection, CValue value) at MS.Internal.XcpImports.Collection_AddDependencyObject[T](PresentationFrameworkCollection`1 collection, DependencyObject value) at System.Windows.PresentationFrameworkCollection`1.AddDependencyObject(DependencyObject value) at System.Windows.Controls.UIElementCollection.AddInternal(UIElement value) at System.Windows.PresentationFrameworkCollection`1.Add(UIElement value) at MyProject.Pages.DashboardPage.RefreshTiles() </code></pre> <p>I don't get this error reproduced, it just pops up sometimes. I noticed, that when I delete the whole WrapPanel and create a new the error never pop up. Thus it's seems to be some problem with deleting and adding items. Here's my code:</p> <pre><code>private void RefreshTiles() { wrapPanelRooms.Children.Clear(); foreach (Room room in Data.Inst.Rooms) { ControlRoomTile newTile = new ControlRoomTile{...}; newTile.MouseLeftButtonUp += (sender, e) =&gt; this.NavigationService.Navigate( new Uri("/Pages/RoomDetailPage.xaml?id=" + ((ControlRoomTile)sender).Id, UriKind.Relative)); try { this.wrapPanelRooms.Children.Add(newTile); } catch (Exception e) { Log.WriteLine(DateTime.Now.ToString("HH:mm:ss.ffff") + " UI: RefreshTiles ERROR1"); } } } </code></pre> <p>Does anyone knowing a fix for that?</p>
 

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