private void toolStripButtonMonHoc_Click(object sender, EventArgs e)
{
foreach (Form f in this.MdiChildren)
{
if (f.Name == "frmMonHoc")
{
f.Activate();
return;
}
}
frmMonHoc mh = new frmMonHoc();
mh.MdiParent = this;
mh.Show();
}
private void barMonHoc_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
Form frm = this.KiemTraTonTai(typeof(frmMonHoc));
if (frm != null)
{
frm.Activate();
}
else
{
frmMonHoc f = new frmMonHoc();
f.MdiParent = this;
f.Show();
}
}
private void btnMonhoc_Click(object sender, EventArgs e)
{
frmMonHoc mh = new frmMonHoc();
mh.ShowDialog();
}