private void barButtonItem1_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmDangNhap frmDangNhap = new frmDangNhap();
frmDangNhap.Closed += (s, args) => this.Close();
frmDangNhap.Show();
this.Hide();
}
public frmMain()
{
InitializeComponent();
frmDangNhap f = new frmDangNhap();
f.MdiParent = this;
f.Show();
}
private void barDangNhap_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();
}
}
public frmMain()
{
InitializeComponent();
Form frm = this.CheckExists(typeof(frmDangNhap));
if (frm != null)
{
frm.Activate();
}
else
{
frmDangNhap f = new frmDangNhap();
f.MdiParent = this;
f.Show();
}
}
