Select(n=>new {Поле1=n[0],Поле2=n[1]})

            DataTable dt = GetReportTable(p1, p2, p3);
            var obj = new {Поле1= "dsdsd", Поле3 = "dfdfdf", Поле2= "sdsdsd"};
            List<object> dsList=new List<object>();
            dsList.Add(obj);
            RadGrid1.DataSource = dsList;

            DataTable dt = GetReportTable(p1, p2, p3);;
            var obj = new {Поле1= "dsdsd", Поле3 = "dfdfdf", Поле2= "sdsdsd"};
            List<object> dsList=new List<object>();
            dsList.Add(obj);
            foreach (var item in ColumnAdapter(dt)) //ColumnAdapter - делегат
            {
                dsList.Add(item);
            }
            
            RadGrid1.DataSource = dsList;

            DataTable dt = GetReportTable(p1, p2, p3);;
            List<object> dsList = ColumnAdapter(dt); //Данные приходят
            
            RadGrid1.DataSource = dsList; //В DataSource данные есть
            /////где-то в другом методе//////
            DataBind() //Cannot find any bindable properties in an item from the datasource