private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
int index = dataGridView1.SelectedCells[0].RowIndex;
DataGridViewRow row = dataGridView1.Rows[index];
string w = row.Cells[0].Value.ToString();
string x = row.Cells[1].Value.ToString();
string y = row.Cells[2].Value.ToString();
checkout a = new checkout(x,w,y);
a.Show();
}
private void button3_Click(object sender, EventArgs e)
{
checkout c = new checkout();
c.Show();
}