public frmMain()
{
InitializeComponent();
frmDangNhap f = new frmDangNhap();
f.MdiParent = this;
f.Show();
unEnableButton();
btnTaoLogin.Enabled = false;
btnDangXuat.Enabled = false;
}
private void btnDangNhap_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
Form frm = this.CheckExists(typeof(frmDangNhap));
if (frm != null)
{
frm.Activate();
}
else
{
frmDangNhap f = new frmDangNhap();
f.MdiParent = this;
f.Show();
}
}
private void btnDangXuat_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
// Kiểm tra nếu form nào đang tồn tại thì tắt
Form frmDN = this.CheckExists(typeof(frmDangNhap));
Form frmDiem = this.CheckExists(typeof(frmDiem));
Form frmHocPhi = this.CheckExists(typeof(frmHocPhi));
Form frmLop = this.CheckExists(typeof(frmLop));
Form frmMonHoc = this.CheckExists(typeof(frmMonHoc));
Form frmSV = this.CheckExists(typeof(frmSinhVien));
Form frmTaoLogin = this.CheckExists(typeof(frmTaoLogin));
Form Frpt_BangDiemMonHoc = this.CheckExists(typeof(Report.Frpt_BangDiemMonHoc));
Form Frpt_BangDiemTongKet = this.CheckExists(typeof(Report.Frpt_BangDiemTongKet));
Form Frpt_DanhSachDongHP = this.CheckExists(typeof(Report.Frpt_DanhSachDongHP));
Form Frpt_DsThiHetMon = this.CheckExists(typeof(Report.Frpt_DsThiHetMon));
Form Frpt_InDanhSachSinhVienLOP = this.CheckExists(typeof(Report.Frpt_InDanhSachSinhVienLOP));
Form Frpt_PhieuDiemSV = this.CheckExists(typeof(Report.Frpt_PhieuDiemSV));
if (frmDN != null)
{
frmDN.Close();
frmDangNhap f = new frmDangNhap();
f.MdiParent = this;
f.Show();
this.MAGV.Text = "";
this.HOTEN.Text = "";
this.NHOM.Text = "";
unEnableButton();
btnDangXuat.Enabled = false;
btnTaoLogin.Enabled = false;
}
if (frmDiem != null)
{
frmDiem.Close();
}
if (frmHocPhi != null)
{
frmHocPhi.Close();
}
if (frmMonHoc != null)
{
frmMonHoc.Close();
}
if (frmLop != null)
{
frmLop.Close();
}
if (frmSV != null)
{
frmSV.Close();
}
if (frmTaoLogin != null)
{
frmTaoLogin.Close();
}
if (Frpt_BangDiemMonHoc != null)
{
Frpt_BangDiemMonHoc.Close();
}
if (Frpt_BangDiemTongKet != null)
{
Frpt_BangDiemTongKet.Close();
}
if (Frpt_DanhSachDongHP != null)
{
Frpt_DanhSachDongHP.Close();
}
if (Frpt_DsThiHetMon != null)
{
Frpt_DsThiHetMon.Close();
}
if (Frpt_InDanhSachSinhVienLOP != null)
{
Frpt_InDanhSachSinhVienLOP.Close();
}
if (Frpt_PhieuDiemSV != null)
{
Frpt_PhieuDiemSV.Close();
}
}