private void FormMain_Load(object sender, EventArgs e) { frm_DangNhap = new FormDangNhap(); frm_DangNhap.MdiParent = this; frm_DangNhap.Dock = DockStyle.Fill; frm_DangNhap.Show(); KiemTraDangNhap(); }
private void btn_DangXuat_Click(object sender, EventArgs e) { if (_DaDangNhap) { _DaDangNhap = false; KiemTraDangNhap(); DongTatCaForm(); frm_DangNhap = new FormDangNhap(); frm_DangNhap.MdiParent = this; frm_DangNhap.Dock = DockStyle.Fill; frm_DangNhap.Show(); } }