private void btnKhoHang_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmKhoHang kh = new frmKhoHang();
kh.MdiParent = this;
kh.Show();
}
private void btnKhoHang_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmKhoHang kh = new frmKhoHang();
if (ExistsForm(kh))
{
return;
}
kh.MdiParent = this;
kh.Show();
}
private void bbiKho_ItemClick(object sender, ItemClickEventArgs e)
{
if (_khohang == null)
{
_khohang = new frmKhoHang();
_khohang.FormClosing += (ss, ex) =>
{
_khohang = null;
};
_khohang.MdiParent = this;
_khohang.Show();
}
else
{
tabMdi.Pages[_khohang].MdiChild.Activate();
}
}