private void btnNhaCungCap_Click(object sender, EventArgs e)
{
frmNhaCC ds = new frmNhaCC();
this.Hide(); // đóng form cũ lại
ds.Show();
}
private void btnNhaCC_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
Form frmNCC = this.KiemTraTonTai(typeof(frmNhaCC));
if (frmNCC != null)
{
frmNCC.Activate();
}
else
{
frmNhaCC fncc = new frmNhaCC();
fncc.MdiParent = this;
fncc.Show();
}
}