Hello,
I'm sharing my reply within the support case on the matter:
Most probably, it means that the control is customized and this makes it impossible for TestComplete to handle it to get data for the wColumnCount property (note that this property is added to the control's wrapper by TestComplete as part of special support for such controls). For example, some native members that provide information about columns are not accessible in your control. Thus, you can try using other members that provide or make it possible to calculate the number of columns. |