string CreateMaHocSinhMoi()
{
DShocsinhBLL dshsbll = new DShocsinhBLL();
string maHSMax = dshsbll.GetMaHSMax();
return((Int32.Parse(maHSMax) + 1).ToString());
}
private void ThemSuaHocSinh_Load(object sender, EventArgs e)
{
List <string> listGioiTinh = new List <string>()
{
"Nam",
"Nữ"
};
cbGioiTinh.DataSource = listGioiTinh;
//neu day la tem moi hoc sinh thi minh se load san tbMaHocSinh bang gia tri moi
if (this.tenHocSinh == null)
{
DShocsinhBLL dshsbll = new DShocsinhBLL();
string maHocSinhMax = dshsbll.GetMaHSMax();
tbMaHS.Text = (Int32.Parse(maHocSinhMax) + 1) + "";
}
}