Hello Allen,

You shouldn’t keep reference to UIElements, because they are maintained by the PLF and might be reused, which meant that you might expect it to refer a specific cell on the screen, but it actually is for another cell. So you should modify your code like:

UltraGridCell _lastUIGridElement;  

 void ultraGrid1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            Infragistics.Win.UIElement element = ultraGrid1.DisplayLayout.UIElement.ElementFromPoint(e.Location);

            _lastUIGridElement = element.GetContext(typeof(UltraGridCell)) as UltraGridCell;

}

So if you need to get the UI element in later stage of this cell you could use following line:

_lastUIGridElement. GetUIElement()

Please let me know if you have any further questions.