Sửa lỗi Data binding directly to a store query (DbSet, DbQuery, DbSqlQuery) is not supported - C# ASP.NET

 private void FillGrid()
        {
            using (var Context = new EmpDatabaseContext())
            {
                var query = Context.Emps.Select(m => m);
                //var query = from m in Context.Emps
                //            select m;
               // Gridview1.DataSource = query;
                Gridview1.DataSource = query.ToList();
                Gridview1.DataBind();
            }
        }

  We canot bind Iqueryable directly. We have to change into ToList()