We are getting the following error. Is there something that we can do to solve this issue. Thank you.
System.NullReferenceException: Object reference not set to an instance of an object. at Infragistics.Win.UltraWinTree.UltraTreeNode.NodeUiaProviderStub.GetParent() at Infragistics.Win.UIAutomation.Stubs.FragmentUIAProviderStub.GetParentStub() at Infragistics.Win.UIAutomation.Stubs.FragmentUIAProviderStub.GetAutomationId() at Infragistics.Win.UltraWinTree.UltraTreeNode.VerifyNodeUiaProviderStub() at Infragistics.Win.UltraWinTree.UltraTreeNode.GetUiaProviderStub(Boolean createIfNeeded) at Infragistics.Win.UltraWinTree.UltraTreeNode.GetUiaProviderStub() at Infragistics.Win.UltraWinTree.NodeCheckBoxUIElement.DoClick() at Infragistics.Win.UltraWinTree.NodeCheckBoxUIElement.OnClick() at Infragistics.Win.ControlUIElementBase.ProcessMouseUpHelper(Object sender, MouseEventArgs e) at Infragistics.Win.ControlUIElementBase.ProcessMouseUp(Object sender, MouseEventArgs e) at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e) at Infragistics.Win.UltraControlBase.OnMouseUp(MouseEventArgs e) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) 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)
Hello,
Thank you for posting in our forums!
Please see the following forum post where I answer this same issue.
https://ko.infragistics.com/community/forums/f/ultimate-ui-for-windows-forms/119534/ultrawintree-dll---null-exception?focus=true