你怎么发现只有同时具有一个getter和setter属性？ [英] How do you find only properties that have both a getter and setter?

问题描述

C＃.NET 3.5

C#, .NET 3.5

我试图让所有的既有getter和一个setter的实例对象的属性。在code我的认为的应该是

I am trying to get all of the properties of an object that have BOTH a getter and a setter for the instance. The code I thought should work is

PropertyInfo[] infos = source.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetProperty | BindingFlags.GetProperty);

然而，结果包括不具有一个设置器的属性。给你我的继承结构的可能影响本（虽然我不知道如何），一个简单的想法：

However, the results include a property that does not have a setter. To give you a simple idea of my inheritance structure that might be affecting this (though I don't know how):

public interface IModel
{
    string Name { get; }
}

public class BaseModel<TType> : IModel
{
    public virtual string Name { get { return "Foo"; } }

    public void ReflectionCopyTo(TType target)
    {
        PropertyInfo[] infos = this.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetProperty | BindingFlags.GetProperty);
        foreach (PropertyInfo info in infos)
            info.SetValue(target, info.GetValue(this, null), null);
    }
}

public class Child : BaseModel<Child>
{
    // I do nothing to override the Name property here
}

我结束了以下错误与名称工作时：

I end up with the following error when working with Name:

System.ArgumentException: Property set method not found.

编辑：我想知道为什么这样做的没有的工作，以及我应该怎样做才能不出现错误

I would like to know why this does not work, as well as what I should be doing to not get the error.

推荐答案

呼叫<一href="http://msdn.microsoft.com/en-us/library/system.reflection.propertyinfo.getgetmethod.aspx"><$c$c>GetGetMethod和<一href="http://msdn.microsoft.com/en-us/library/system.reflection.propertyinfo.getsetmethod.aspx"><$c$c>GetSetMethod对物业 - 如果这两个结果都是非空，你在那里：）

Call GetGetMethod and GetSetMethod on the property - if both results are non-null, you're there :)

（无参数的版本只返回public方法;有过载用布尔参数指定是否你也想非公开方式）

(The parameterless versions only return public methods; there's an overload with a boolean parameter to specify whether or not you also want non-public methods.)

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