// open add item window
private void btnAdd_Click(object sender, EventArgs e)
{
addItem.ClearFields();
addItem.Show();
addItem.PUpdateButton.Visible = false;
addItem.PAddButton.Visible = true;
}
private void btnSell_Click(object sender, EventArgs e)
{
try
{
int maxToSell = Int32.Parse(txtStock.Text);
int newStock = maxToSell - Convert.ToInt32(nUDQuantity.Value);
if (txtCustomerName.Text == "" || txtItemName.Text == "" || txtPrice.Text == "")
{
MessageBox.Show("Fill all fields correct");
}
else if (Convert.ToInt32(nUDQuantity.Value) == 0 || Convert.ToInt32(nUDQuantity.Value) > maxToSell)
{
MessageBox.Show("Quantity must be between 1 and " + txtStock.Text);
}
else
{
store = Store.StoreInstance;
Purchase purchase = new Purchase(txtCustomerName.Text, txtItemName.Text, Convert.ToDouble(txtPrice.Text), Convert.ToInt32(nUDQuantity.Value), DateTime.Parse(dateTimePurchase.Text));
bs.AddPurchase(purchase);
if (itemType == "Book")
{
bs.SellBook(store.Id, newStock);
}
else if (itemType == "Journal")
{
bs.SellJournal(store.Id, newStock);
}
MessageBox.Show("You have successfully selled " + txtItemName.Text + " to " + txtCustomerName.Text);
store.Display();
ClearFields();
AddItem add = AddItem.AddItemInstance;
add.ClearFields();
this.Hide();
store.Hide();
store.Show();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}