private void btnthithu_ItemClick(object sender, ItemClickEventArgs e)
{
Form frm = KiemTraTonTai(typeof(frmThi));
if (frm != null)
{
frm.Activate();
}
else
{
frmThi f = new frmThi();
f.MdiParent = this;
f.Show();
}
}
private void btnThiThu_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
form = this.CheckExists(typeof(frmThi));
if (form == null)
{
IsMdiContainer = true;
frmThi = new frmThi();
frmThi.MdiParent = this;
frmThi.Show();
checkOpenThiThu = true;
}
else
{
form.Activate();
}
}