private void PlusBtn_Click(object sender, EventArgs e)
{
//Finding the required parent controls
Button btnSender = (Button)sender;
GroupBox gbSender = (GroupBox)btnSender.Parent;
BasketGBControl endParent = (BasketGBControl)gbSender.Parent;
Product prod = endParent.paramProd;
//Looping through the available products o find the right one
//Decreasing its quantity, increasing the quantity in the basket
//Or showing the error message if no more items can be added to the basket
foreach (Product productAv in ShopForm.AvailableProducts)
{
if (productAv.Equals(prod))
{
if (productAv.Quantity > 0)
{
prod.Quantity++;
endParent.TrueQtyLbl.Text = prod.Quantity.ToString();
productAv.Quantity--;
ShopGBControl.QtyChange(endParent, productAv);
ShopForm.ChangePriceWeightLbls(endParent, Basket.BasketList);
return;
}
else
{
MessageBox.Show($"Sorry, {prod.Name.ToLower()} is out of stock.");
return;
}
}
}
}
public static void QtyChange(Object obj, Product prod)
{
//Changes the quantity shown in the ShopGBControl (Available products section)
//Reveives BasketGBControl as sender
BasketGBControl bgbcSender = (BasketGBControl)obj;
FlowLayoutPanel flpSender = (FlowLayoutPanel)bgbcSender.Parent;
Form endParent = (Form)flpSender.Parent;
var flpList = endParent.Controls.OfType <FlowLayoutPanel>();
//Loops through the FlowLayoutPanels in the ShoForm
//Selects the necessary, then loops through the ShopGBControls in it
//Upon finding the required Control, changes its Quantity label
foreach (FlowLayoutPanel flp in flpList)
{
if (flp.Name == "ProductsPanel")
{
var sgbcList = flp.Controls.OfType <ShopGBControl>();
foreach (ShopGBControl sgbc in sgbcList)
{
if (sgbc.Name == prod.Name)
{
sgbc.TrueQtyLbl.Text = prod.Quantity.ToString();
}
}
}
}
}
private void MinusBtn_Click(object sender, EventArgs e)
{
//Finding the required parent controls
Button btnSender = (Button)sender;
GroupBox gbSender = (GroupBox)btnSender.Parent;
BasketGBControl endParent = (BasketGBControl)gbSender.Parent;
FlowLayoutPanel flpParent = (FlowLayoutPanel)endParent.Parent;
Product prod = endParent.paramProd;
//Checking the quantity of item in the basket and performing necessary actions accordingly
//Decreasing quantity in basket, increasing quantity in available products, rerendering the labels
//And, if necessary, removing the item from the basket
if (prod.Quantity > 1)
{
prod.Quantity--;
endParent.TrueQtyLbl.Text = prod.Quantity.ToString();
foreach (Product productAv in ShopForm.AvailableProducts)
{
if (productAv.Equals(prod))
{
productAv.Quantity++;
ShopGBControl.QtyChange(endParent, productAv);
ShopForm.ChangePriceWeightLbls(endParent, Basket.BasketList);
return;
}
}
}
else if (prod.Quantity == 1)
{
foreach (Product productAv in ShopForm.AvailableProducts)
{
if (productAv.Equals(prod))
{
productAv.Quantity++;
ShopGBControl.QtyChange(endParent, productAv);
ShopForm.ChangePriceWeightLbls(endParent, Basket.BasketList);
Basket.BasketList.Remove(prod);
flpParent.Controls.Remove(endParent);
return;
}
}
}
}