Question

在调试器代理类上使用[DebuggerDisplay（“{OneLineAddress}”）]时，它似乎不起作用。有什么我做错了吗？或者在没有向原始类添加代码的情况下解决这个问题？

[DebuggerTypeProxy(typeof(AddressProxy))]
class Address
{
    public int Number { get; set; }
    public string Street { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public int Zip { get; set; }

    public Address(int number, string street, string city, string state, int zip)
    {
        Number = number;
        Street = street;
        City = city;
        State = state;
        Zip = zip;
    }

    [DebuggerDisplay("{OneLineAddress}")] // doesn't seem to work on proxy
    private class AddressProxy
    {
        [DebuggerBrowsableAttribute(DebuggerBrowsableState.Never)]
        private Address _internalAddress;

        public AddressProxy(Address internalAddress)
        {
            _internalAddress = internalAddress;
        }

        public string OneLineAddress
        {
            get { return _internalAddress.Number + " " + _internalAddress.Street + " " + _internalAddress.City + " " + _internalAddress.State + " " + _internalAddress.Zip; }
        }
    }
}

Answer 1

DebuggerDisplay属性应该在类上使用，而不是在代理上使用。为了达到同样的效果，当你尝试完成时，你可以在你的类上添加DebuggerDisplayAttribute（没有AddressProxy）：

[DebuggerDisplay("{Number} {Street,nq} {City,nq} {State,nq} {Zip}")]
class Address
{
    public int Number { get; set; }
    public string Street { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public int Zip { get; set; }

    public Address(int number, string street, string city, string state, int zip)
    {
        Number = number;
        Street = street;
        City = city;
        State = state;
        Zip = zip;
    }
}

街道，城市和州中的文字nq会删除属性中的引号。

Answer 2

[DebuggerDisplay("{OneLineAddress}")]仅适用于特定的类实例。要在示例代码中查看结果，您需要创建AddressProxy类的实例。

要查看Address课程中的“一行地址”，您可以使用

[DebuggerDisplay("{Number} {Street,nq} {City,nq} {State,nq} {Zip}")]
class Address { .... }

或者：

public override string ToString()
{
  return string.Format("{0} {1} {2} {3} {4}", Number, Street, City, State, Zip);
}

我个人推荐ToString()方法，因为在列表和数组中使用会显示正确的状态一行地址...

DebuggerTypeProxy应该用于列表，因为它在扩展当前实例后用于调试器。例如，请参阅http://msdn.microsoft.com/en-us/library/system.diagnostics.debuggertypeproxyattribute%28v=vs.110%29.aspx

DebuggerTypeProxy类上的DebuggerDisplay属性

2 个答案: