<Error>
<Label>Object reference not set to an instance of an object.</Label>
<Message>Object reference not set to an instance of an object.</Message>
<Source>Infragistics2.Win.UltraWinExplorerBar.v6.2</Source>
<StackTrace> at Infragistics.Win.UltraWinExplorerBar.StyleUtils.GetResolutionOrder(UltraExplorerBar explorerBar)
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarGroupSettingsResolved.get_HeaderButtonStyle()
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarGroupHeaderUIElement.get_ButtonStyle()
at Infragistics.Win.ButtonUIElementBase.get_IsButtonStyleMouseActive()
at Infragistics.Win.ButtonUIElementBase.OnMouseLeave()
at Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarGroupHeaderUIElement.OnMouseLeave()
at Infragistics.Win.ControlUIElementBase.ElementEntered(UIElement element, Boolean triggerMouseLeavesOnly)
at Infragistics.Win.ControlUIElementBase.ElementEntered(UIElement element)
at Infragistics.Win.ControlUIElementBase.ProcessMouseMoveHelper(Object sender, MouseEventArgs e)
at Infragistics.Win.ControlUIElementBase.ProcessMouseMove(Object sender, MouseEventArgs e)
at System.Windows.Forms.Control.OnMouseMove(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseMove(Message& m)
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)
</StackTrace>
<Date>10/21/2009 8:21:12 AM</Date>
</Error>
We need to have this fixed this is causing our program to stop running. This is used in several parts of our software. Has this has been fixed in a newer version?
A bug was reported in mid-2006 that sounds similar to the issue you describe here; we were never able to repeoduce it but we inserted a null reference check at a line of code that could theoretically cause this problem. So yes, it is possible that your problem has been addressed in all currently supported versions.