private void registerStaffToolStripMenuItem_Click(object sender, EventArgs e)
{
RegisterForStaff registerForStaff = new RegisterForStaff();
this.Hide();
registerForStaff.ShowDialog(this);
//jump RegisterForStaff.cs
}
private void RegisterForStaff_btn_Click(object sender, EventArgs e)
{
RegisterForStaff registerStaff = new RegisterForStaff();
this.Hide();
registerStaff.ShowDialog(this);
// translate "RegisterForStaff"
}