TIWCGJQGridGrHeader.NumberOfColumns Property
The number of columns which are included for this group. Note that the number start from the startColumnName. If the column is hidden it is skipped and as result the group does not contain the field, but the method count it.
published property NumberOfColumns: Integer index 01 read GetIntegerValue write SetIntegerValue stored IsIntegerStored;
Property Value
Type: Integer