Member function importDataGrid from cells not included?


i want to export a datagrid into an excell sheet.
In the information, the function importdatagrid was described.
But this function is not included in the class, so i can not use it.
How can i add this function to the class, or what went wrong?

thank you


What do you mean “the function is not included”? Please check

And could you post your related code here?