I traing to write dates from dataGridView1 in matrix but I can't. this algorithm working when just l=c (l-lines, c-columns).

k = new int[l,c];

             for ( int i = 1; i <l ; i++)
             {
                 for (int j = 1; j < c; j++)
                 {

                     k[i,j] =int.Parse(dataGridView1[i,j].Value.ToString());

                 }
             }