private void tlDanhMuc_ItemClick(object sender, TileItemEventArgs e)
{
fDanhMuc f = new fDanhMuc();
this.Hide();
f.ShowDialog();
this.Show();
}
private void danhMụcMónToolStripMenuItem_Click(object sender, EventArgs e)
{
fDanhMuc f = new fDanhMuc();
f.InsertDanhMuc += f_InsertDanhMuc;
f.DeleteDanhMuc += f_DeleteDanhMuc;
f.UpdateDanhMuc += f_UpdateDanhMuc;
f.ShowDialog();
}