public async Task AddItemAsync(string ean)
{
var existingRow = Rows.SingleOrDefault(r => r.EAN == ean);
if (existingRow != null)
{
existingRow.Quantity++;
}
else
{
var cartRow = new CartRow {
EAN = ean, Quantity = 1
};
_rows.Add(cartRow);
for (int i = 0; i < 20; i++)
{
try
{
cartRow.Product = await FetchProductData(ean);
break;
}
catch (RpcException)
{
await Task.Delay(5000);
}
}
if (cartRow.Product == null)
{
_rows.Remove(cartRow);
}
}
}
public async Task AddItemAsync(string ean)
{
var existingRow = Rows.SingleOrDefault(r => r.EAN == ean);
if (existingRow != null)
{
// We already have a row for this EAN
// Just increment the quantity
existingRow.Quantity++;
}
else
{
// This is a new EAN
// First add the row, before the product data is loaded
var row = new CartRow {
EAN = ean, Quantity = 1
};
_rows.Add(row);
// Now fetch
// Simple retry loop
for (var i = 0; i < 20; i++)
{
try
{
row.Product = await FetchProductData(ean);
break;
}
catch (RpcException)
{
await Task.Delay(5000);
}
}
if (row.Product == null)
{
// Can't find this product; remove row from cart
_rows.Remove(row);
}
}
}
