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Fires when another Cell in a ctrGRID control is about to become selected but before the change. It is used to check the validity of the value passed to the just previously selected Cell. If the value is not valid then return FALSE (0) in the Data parameter of the EventProc function. In this case the selection of the Cell will not change so to give to the user the opportunity to fix the value and try again. Data. If the value of the selected Cell is not valid return here FALSE. For Control(s): ctrGRID |