René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"System.Windows.Data error 4: cannot find source for binding with reference","articleBody":"This spammy error in the VS Immediate Window happens when the program closes the ISAC window and executes the `InterruptLoadAutoCompletes` function located in `EditorElementIntellisenseController.cs`, more specifically, when both the `AutoCompleteBox` and `MethodAutoCompleteBox`'s ItemSources get refreshed. \r\n\r\nI managed to pull this little comment from one of MahApps Metro's documentation files:\r\n\r\n```xml\r\n\u003cmember name=\"M:MahApps.Metro.Controls.TabControlHelper.ClearStyle(System.Windows.Controls.TabItem)\"\u003e\r\n\t Sets the Style and Template property to null.\r\n\t \r\n\t Removing a TabItem in code behind can produce such nasty output\r\n\t System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.TabControl', AncestorLevel='1''. BindingExpression:Path=Background; DataItem=null; target element is 'TabItem' (Name=''); target property is 'Background' (type 'Brush')\r\n\t or\r\n\t System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.TabControl', AncestorLevel='1''. BindingExpression:Path=(0); DataItem=null; target element is 'TabItem' (Name=''); target property is 'UnderlineBrush' (type 'Brush')\r\n\t\r\n\t This is a timing problem in WPF of the binding mechanism itself.\r\n\t\r\n\t To avoid this, we can set the Style and Template to null.\r\n\u003c/member\u003e\r\n\r\n```","author":{"url":"https://github.com/maxijabase","@type":"Person","name":"maxijabase"},"datePublished":"2021-12-01T03:38:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/104/SPCode/issues/104"}