Hello Team
I am facing below issue, type some alphabet in combobox cell type in UltraGrid after drop down popups with suitable values then select some thing from list.
System.NullReferenceException: Object reference not set to an instance of an object. at Infragistics.Win.EditorWithCombo.Infragistics.Win.IValueListOwner.OnSelectionChangeCommitted() at Infragistics.Win.ValueList.ProcessSelectionChangeCommitted() at Infragistics.Win.ValueListDropDown.OnSelectionChangeCommitted() at Infragistics.Win.ValueListDropDown.SelectItemByMouse(ValueListItem valueListItem) at Infragistics.Win.ValueListDropDown.OnMouseUp(MouseEventArgs e) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at Infragistics.Win.ValueListDropDownUnsafe.WndProc(Message& message) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
This issue is only when we have items in dropdown which matches what we have entered in dropdown.
Thanks in advance.
Hello Silva
Did you manage to resolve this issue? I have exactly the same problem. I have been in touch with Infragisitics support and they told me the same thing - that the issue was fixed in the latest SR. I have the latest SR but I still experience the issue.
If you can offer any suggestions it will be greatly appreciated.
Thanks
Ben
Hello Ben
This is Shafi from Siva's team.
As per our internal process, we are unable to perform upgrade activity.For now we removed suggestion property for combo to overcome this unhandled exception.
Shafi
Even I am facing the same issue in 20151.2230, has this been fixed or not?
Based on the call stack that was provided we believed that the issue was addressed in version 15.1.20151.2230. If you are indeed still seeing the NullReferenceException in this version, please provide us with an example that we can use for debugging to look into what may be happening as we didn't reproduce this at the time the thread was raised.
The stack trace is a bit different here:Infragistics.Win.EditorWithCombo.Infragistics.Win.IValueListOwner.OnSelectionChangeCommitted()Infragistics.Win.EditorWithCombo.InternalOnEmbeddableTextBoxListenerKeyDown(KeyEventArgs e)Infragistics.Win.EditorWithCombo.Infragistics.Win.IEmbeddableTextBoxListener.OnKeyDown(KeyEventArgs e)Infragistics.Win.EmbeddableTextBox.OnKeyDown(KeyEventArgs e)System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)System.Windows.Forms.Control.ProcessKeyMessage(Message& m)Infragistics.Win.EmbeddableTextBoxWithUIPermissions.ProcessKeyMessage(Message& msg)System.Windows.Forms.Control.WmKeyChar(Message& m)System.Windows.Forms.Control.WndProc(Message& m)System.Windows.Forms.TextBoxBase.WndProc(Message& m)System.Windows.Forms.TextBox.WndProc(Message& m)Infragistics.Win.EmbeddableTextBoxWithUIPermissions.WndProcInternal(Message& m)Infragistics.Win.EmbeddableTextBoxWithUIPermissions.WndProc(Message& m)System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)System.Windows.Forms.Application.Run(Form mainForm)TNR.Workbench.Program.Main() in Program.cs: line: 26We have an ultragrid which has a valuelist bound to it & auto suggest set on that cell. On selecting or typing an item & hitting the enter key our app crashes.