private void barButtonItem_LDSauGiao_ItemClick(object sender, ItemClickEventArgs e)
{
if (formMucDichSuDungDat == null)
{
formMucDichSuDungDat = new F_Main_MucDichSuDungDat();
formMucDichSuDungDat.MdiParent = this;
formMucDichSuDungDat.FormClosed += new FormClosedEventHandler(formMucDichSuDungDat_FormClosed);
formMucDichSuDungDat.Show();
}
else
{
formMucDichSuDungDat.Activate();
}
}
void formMucDichSuDungDat_FormClosed(object sender, FormClosedEventArgs e)
{
formMucDichSuDungDat = null;
}