private void mnuItmChangeStaff_Click(object sender, EventArgs e)
{
this.Hide();
frmChangeStaff frmChangeStaff = new frmChangeStaff();
frmChangeStaff.Show();
}
private void mnuItmModifyStaff_Click(object sender, EventArgs e)
{
txtAddFoodItem.Clear();
txtAddFoodItemDesc.Clear();
txtAddFoodItemPrice.ResetText();
cboAddFoodItemStatus.SelectedIndex = -1;
cboAddFoodItemType.SelectedIndex = -1;
this.Close();
frmChangeStaff frmChangeStaff = new frmChangeStaff();
frmChangeStaff.Show();
}