public void AddToItems(object sender, System.EventArgs e)
{
string items = Interaction.InputBox("Enter total items", "", "1", 100, 100);
int a = 0;
if (int.TryParse(items, out a))
{
if (IsUnitLeftEnough(int.Parse(pos.SetUnitLeft.Text), int.Parse(items)))
{
pos.InsertItem(pos.SetCode.Text, int.Parse(items));
pos.AddItemsData();
}
else
{
MessageBox.Show("Unit left not enough");
}
}
else
{
MessageBox.Show("Please enter a number");
}
}