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Adding items in order gives NullReferenceException (WooCommerce, in C# and using WooCommerce.NET addin.
I am trying to use this code for making an order in Woocommerce, using this add-on :https://github.com/XiaoFaye/WooCommerce.NET. My code is this:
var order = new Order() { status = "pending" };
order.currency = "EUR";
order.line_items.Add(new OrderLineItem()
{
id=44,
product_id = 44,
quantity=2
}
);
order.customer_id = 1;
Task ord = wc.Order.Add(order);
ord.Wait();
But everytime it gives me this exception:
System.NullReferenceExcept
I have tried everything but no success...
var order = new Order() { status = "pending" };
order.currency = "EUR";
order.line_items.Add(new OrderLineItem()
{
id=44,
product_id = 44,
quantity=2
}
);
order.customer_id = 1;
Task ord = wc.Order.Add(order);
ord.Wait();
But everytime it gives me this exception:
System.NullReferenceExcept
I have tried everything but no success...
* AddinsC#Microsoft Visual Studio
Last Comment
it_saige
ASKER
@Chris Stanyon
Hello and thanks for answering! Sorry that i didn't mention it... The line in question is this
order.line_items.Add(new OrderLineItem()
{
id=44,
product_id = 44,
quantity=2
}
);
Thanks again!
Hello and thanks for answering! Sorry that i didn't mention it... The line in question is this
order.line_items.Add(new OrderLineItem()
{
id=44,
product_id = 44,
quantity=2
}
);
Thanks again!
On which line you get this exception? Is it when you try to add Products?
Maybe you would want to first initialize line_items?
i.e.
order.line_items.Add(new OrderLineItem()
Maybe you would want to first initialize line_items?
i.e.
order.line_items = new line_items()
Your help has saved me hundreds of hours of internet surfing.
fblack61
ASKER CERTIFIED SOLUTION
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It depends on what your collection type is but, you could do something like this:
var order = new Order { status = "pending" };
order.currency = "EUR";
order.line_items = new List<OrderLineItem>() { new OrderLineItem { id = 44, product_id = 44, quantity = 2 } };
order.customer_id = 1;
Both of these lines look like they're adding an object to list, so it's possible that the list itself hasn't been initialised:
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