TIWCGJQGridOptions.OnErrorCell Property
fires if there is a server error; servereresponse is the response from the server. To use this we should apply serverresponse.responseText to obtain the text message from the server. status is the status of the error. If not set a modal dialog apper.
published property OnErrorCell: TIWCGJSonFunc index 113 read GetFuncValue write SetFuncValue stored IsFuncStored;