private void danhMụcTácGiảToolStripMenuItem_Click(object sender, EventArgs e)
{
using (frmTacGia f = new frmTacGia())
{
f.ShowDialog();
}
}
private void btn_TacGia_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
frmTacGia f = new frmTacGia();
if (ExistForm(f))
{
return;
}
f.MdiParent = this;
f.Show();
}