使用Where无效的Linq查询

Question

我有以下代码：

    public ActionResult Details(int orderId)
    {
        var query = from orderDetails in storeDb.OrderDetails
                    where orderDetails.OrderId = orderId
                    select new { orderDetails.Product, orderDetails.Quantity, orderDetails.UnitPrice };

        return View(query);
    }

我想得到orderDetails的行，其中外键OrderId等于参数orderId。但是我不断收到以下错误：Error 2 Cannot implicitly convert type 'int' to 'bool'。我错过了什么？

Answer 1

where orderDetails.OrderId = orderId

需要

where orderDetails.OrderId == orderId

Answer 2

where orderDetails.OrderId == orderId