“Both DataSource and DataSourceID are defined” error using ASP.NET GridView

Question

\"Both DataSource and DataSourceID are defined on \'grdCommunication\'. Remove one definition.\"

I just got this error today, the code has been working until this after

Answer 1

Replace this code before this grdCommunication.DataSource = dsActivity;

grdCommunication.DataBind();
grdCommunication.DataSourceID="";