private void button2_Click(object sender, EventArgs e)
{
int luongId = Convert.ToInt32(textBox1.Text);
int songaycong = Convert.ToInt32(textBox5.Text);
int luong = Convert.ToInt32(textBox6.Text);
KeToan.updateLuong(conn, luongId, songaycong, luong);
}
private void button1_Click(object sender, EventArgs e)
{
int maNV = Convert.ToInt32(textBox2.Text);
int thang = Convert.ToInt32(textBox3.Text);
int nam = Convert.ToInt32(textBox4.Text);
int songaycong = Convert.ToInt32(textBox5.Text);
int luong = Convert.ToInt32(textBox6.Text);
KeToan.insertLuong(conn, maNV, thang, nam, songaycong, luong);
}