GotoBookmark issue

I receive the error  message [dcc32 Error] unt1.pas(38): E2010 Incompatible types: 'System.TArray' and 'Pointer' at the  GotoBookmark(pointer(DBGrid3.SelectedRows.Items[i])); I try with format:  dbgrid3.DataSource.DataSet.GotoBookmark(pointer(DBGrid3.SelectedRows.Items[i])); But I receive the same error message.   Can you help me about that please.   Thanks