Assign data from textboxes to datagridview in C# Windows Forms

Assign data from textboxes to datagridview in C# Windows Forms
CODE
int row = 0;
dataGridView1.Rows.Add();
row = dataGridView1.Rows.Count - 1;
dataGridView1["UnitPrice", row].Value = txtprice.Text;
dataGridView1["ProductID", row].Value = txtcode.Text;
dataGridView1["ProductName", row].Value = cmbpname.Text;
dataGridView1["UnitSold", row].Value = qty;
dataGridView1["TotalPrice", row].Value = total;