难道是这样 ？

string[,] array = new string[4, 2];
            array[0, 0] = "1";
            array[0, 1] = "1";

            array[1, 0] = "2";
            array[1, 1] = "2";

            array[2, 0] = "3";
            array[2, 1] = "3";

            array[3, 0] = "4";
            array[3, 1] = "4";

            dataGridView1.Rows.Clear();
            for (int m = 0; m < 4; m++)
            {
                dataGridView1.Rows.Add(1);
                for (int n = 0; n < 2; n++)
                {
                    dataGridView1.Rows[m].Cells[n].Value = array[m, n].ToString();
                }
            }