C# (CSharp) BTL_QLBenhVien frmHoaDon 예제들

예제 #1

 public static frmHoaDon GetInstance()
 {
     if (instance == null)
     {
         instance = new frmHoaDon();
     }
     return(instance);
 }

예제 #2

        private void hóaĐơnToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmHoaDon HD = new frmHoaDon();

            HD.ShowDialog();
        }