DataTable dt = new DataTable();
            dt.Columns.Add("Id", typeof(int));
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Price", typeof(decimal));
            for (int i = 0; i < 10; i++)
            {
                dt.Rows.Add(i,"Item"+i, null);
            }

            this.radGridView1.DataSource = dt;
            this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            this.radFilterView1.AssociatedControl = this.radGridView1;