public void AddItem(Product product, int quantity)
{
CartLine line = lineCollection
.FirstOrDefault(p => p.Product.ProductID == product.ProductID);
if (line == null)
{
var cartLine = new CartLine();
cartLine.Product = product;
cartLine.Quantity = quantity;
lineCollection.Add(cartLine);
}
else
{
line.Quantity += quantity;
}
}
public void AddItem(Product product, int quantity)
{
CartLine line = _lineCollection.Where(a => a.Product.ProductID == product.ProductID).FirstOrDefault();
if (line == null)
{
var cartline = new CartLine()
{
Product = product,
Quantity = quantity
};
_lineCollection.Add(cartline);
}
else
{
line.Quantity += quantity;
}
}
public void AddItem(Product product, int quantity)
{
//check for record
CartLine line = lineCollection.Where
(p => p.Product.ProductID == product.ProductID)
.FirstOrDefault();
//if record is null proceed to adding new record otherwise add quantity only
if (line == null)
{
//linq query
lineCollection.Add(
new CartLine
{
Product = product, Quantity = quantity
}
);
}
else
{
line.Quantity += quantity;
}
}
public void MinusItem(Product product)
{
CartLine line = lineCollection
.Where(p => p.Product.ProductID == product.ProductID)
.FirstOrDefault();
if (line != null)
{
var quant = line.Quantity;
if (quant == 1)
{
RemoveLine(line.Product);
}
else
{
line.Quantity -= 1;
}
}
else
{
throw new ArgumentException("incorrect product for MinusItem");
}
}