Hello,

We are using UltraWinExplorerBar.UltraExplorerBar. And we have to hide the customize button at the bottom of explorer. We have used the below code to hide the customize button.

UltraExplorerBar1.NavigationOverflowButtonAreaVisible = False

Now when we click on the some areas at the bottom of explorer its giving the following exception.

ActiveGroup cannot be set - specified Group cannot be activated! (Group may be disabled or its header may not be visible)

System.ArgumentException was unhandled
Message="ActiveGroup cannot be set - specified Group cannot be activated! (Group may be disabled or its header may not be visible)"
Source="Infragistics2.Win.UltraWinExplorerBar.v10.3"
StackTrace:
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar.set_ActiveGroup(UltraExplorerBarGroup value)
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarGroupHeaderUIElement.OnMouseDown(MouseEventArgs e, Boolean adjustableArea, UIElement& captureMouseForElement)
at Infragistics.Win.ControlUIElementBase.ProcessMouseDownHelper(Object sender, MouseEventArgs e)
at Infragistics.Win.ControlUIElementBase.ProcessMouseDown(Object sender, MouseEventArgs e)
at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
at Infragistics.Win.UltraControlBase.OnMouseDown(MouseEventArgs e)
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar.OnMouseDown(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
at UltraExplorerBarError.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

We tried various events to handle the exception, but could not trace any event to handle the exception.

Please suggest a solution to handle this exception.