private void addItemToSublist(SinglePriceInterface obj)
{
obj.Count++;
StaticMethods.ChangeItem(lstSubTotal, obj);
}
private void btnOthers_Click(object sender, EventArgs e)
{
ot.Count++;
StaticMethods.ChangeItem(lstSubTotal, ot);
}
private void btnPublicOfficer_Click(object sender, EventArgs e)
{
po.Count++;
StaticMethods.ChangeItem(lstSubTotal, po);
}
private void btnElderlyPeople_Click(object sender, EventArgs e)
{
ep.Count++;
StaticMethods.ChangeItem(lstSubTotal, ep);
}
private void 小孩8岁_Click(object sender, EventArgs e)
{
ch8.Count++;
StaticMethods.ChangeItem(lstSubTotal, ch8);
}