隐版本IsAssignableFrom的？ [英] Implicit version of IsAssignableFrom?

问题描述

在我使用的思考，我写code

In my code using reflections i wrote

if (f.FieldType.IsAssignableFrom("".GetType()))

我有了一个隐式转换为字符串类。然而，如果上述声明犯规抓住它。我怎样才能使反射/上述if语句捕获字符串和类隐式串转换？而不是具体的字符串和每个班级我知道的？

I have a class that has an implicit conversion to strings. However the if statement above doesnt catch it. How can i make reflection/the above if statement catch strings and classes with implicit string conversion? instead of specifically strings and each class i know about?

推荐答案

我会用它可以获取所有的公共静态方法，并检查使用正确的名称的方法扩展方法和返回类型。

I would use an extension method which gets all public static methods and checks for a method with the correct name and return type.

public static class TypeExtentions
{
    public static bool ImplicitlyConvertsTo(this Type type, Type destinationType)
    {

        if (type == destinationType)
            return true;


        return (from method in type.GetMethods(BindingFlags.Static |
                                               BindingFlags.Public)
                where method.Name == "op_Implicit" &&
                      method.ReturnType == destinationType
                select method
                ).Count() > 0;
    }
}

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