Hello,

I have an UltraCombo with AutoCompleteMode = SuggestAppend. It's drop down contains a list of predefined forms. When I use the mouse and click on any value in the drop down, there is no error in launching/loading the chosen form. However, when I use a keyboard to type in the form name, we get the error Can't access SelectionStart unless the Editor is in edit mode. At trace, I can see that all of my code was already finished. It was able to get the form name and launch the form. However, just before it gives control back to the user, the error occurs.

Please help. Stack Trace below. Thanks.

StackTrace "   at Infragistics.Win.EmbeddableEditorBase.get_SelectionStart()\r\n   at Infragistics.Win.EmbeddableEditorBase.set_SelectionStart(Int32 value)\r\n   at Infragistics.Win.EditorWithCombo.ProcessAutoComplete(Keys lastKeyDown)\r\n   at Infragistics.Win.EditorWithCombo.ProcessTextBoxTextChanged(Boolean& selectionChangedByAutoEdit)\r\n   at Infragistics.Win.EditorWithCombo.Infragistics.Win.IEmbeddableTextBoxListener.OnTextChanged()\r\n   at Infragistics.Win.EmbeddableTextBox.OnTextChanged(EventArgs e)\r\n   at System.Windows.Forms.TextBoxBase.WmReflectCommand(Message& m)\r\n   at System.Windows.Forms.TextBoxBase.WndProc(Message& m)\r\n   at System.Windows.Forms.TextBox.WndProc(Message& m)\r\n   at Infragistics.Win.EmbeddableTextBoxWithUIPermissions.WndProc(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)\r\n   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)\r\n   at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.Control.ReflectMessageInternal(IntPtr hWnd, Message& m)\r\n   at System.Windows.Forms.Control.WmCommand(Message& m)\r\n   at System.Windows.Forms.Control.WndProc(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)\r\n   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)\r\n   at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)\r\n   at System.Windows.Forms.Control.DefWndProc(Message& m)\r\n   at System.Windows.Forms.Control.WmKeyChar(Message& m)\r\n   at System.Windows.Forms.Control.WndProc(Message& m)\r\n   at System.Windows.Forms.TextBoxBase.WndProc(Message& m)\r\n   at System.Windows.Forms.TextBox.WndProc(Message& m)\r\n   at Infragistics.Win.EmbeddableTextBoxWithUIPermissions.WndProc(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)\r\n   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)\r\n   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)\r\n   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)\r\n   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)\r\n   at System.Windows.Forms.Application.Run(Form mainForm)\r\n   at CTRL_pad.Classes.clsProgram.Main() in C:\\CTRLPAD Server\\CTRLPAD Windows Application\\CTRLPAD Development\\Classes\\clsProgram.cs:line 16" string