Hello Tom,
Since the tested grid is a descendant of WinForms XtraGrid, you can command TestComplete to treat it as an XtraGrid control. For this purpose, you should specify the ClrFullClassName property of the tested grid on the "Tools | Current Project Properties | Object Mapping" page. Add the class name to the Developer Express Controls | XtraGrid node. Also, check whether the grid's view is overridden. For this purpose, select the grid object in the Object Browser, then select its MainView property, click the ellipsis button of the property value column to display the properties of the corresponding object and check its ClrFullClassName property. As you can see, the Developer Express Controls | XtraGrid node has some child nodes that contain the class names of native XtraGrid's views. If the ClrFullClassName property of the MainView object of the tested grid differs from these names, add its class name to the Developer Express Controls | XtraGrid | GridView node. Does this help?
See also:
Object Mapping.
