c# - 选择要从字典中列出的所有对象值

Question

我有一个这样的 DTO:

public class OrderDraft
{
    public string FTPUser             { get; set; }
    public string AccountRef          { get; set; }
    public string SupplyFromWarehouse { get; set; }
    public string UsePriceband        { get; set; }

    public string DocumentDate        { get; set; }
    public string DateRequested       { get; set; }
    public string DatePromised        { get; set; }
    public string CustomerDocumentNo  { get; set; }

    public List<Line> Lines           { get; set; }

    public Address DeliveryAddress    { get; set; }
    public string ShippingChargeCode  { get; set; }
    public decimal ShippingFee        { get; set; }
}

我像这样创建上面的字典:

Dictionary<string, OrderDraft> multiOrders 
    = new Dictionary<string, OrderDraft>();

现在我想返回一个 List<OrderDraft>从上面multiOrders字典。为此，我尝试了以下方法:

• return multiOrders.SelectMany(s => s.Value);
• return multiOrders.SelectMany(s => s.Value).ToList<OrderDraft>;

我收到以下错误:

Error 2 The type arguments for method 'System.Linq.Enumerable.SelectMany(System.Collections.Generic.IEnumerable, System.Func>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

知道如何检索 List<T>来自 Dictionary<String, T> 的所有值？

Answer 1

怎么样:

multiOrders.Values.ToList()