public static void SelectTab(CommandProperties commandProperties) { string tabId = commandProperties.SourceControlId.Replace(SELECT_TAB_COMMAND_PREFIX, ""); Element tab = Window.Parent.Parent.Document.GetElementById("TabNode_tab0Tab-main"); // Move back to the main form if (tab != null) { tab.Click(); } TabItem tabControl = Page.Ui.Tabs.Get(tabId); if (tabControl.GetDisplayState() == DisplayState.Collapsed) { tabControl.SetDisplayState(DisplayState.Expanded); } tabControl.SetFocus(); }