在C＃3.0，是可以确定的键入重$ P $实例是否psents匿名类型？

In C# 3.0, is it possible to determine whether an instance of Type represents an Anonymous Type?

推荐答案

尽管匿名类型为普通型，你可以使用一些启发：

Even though an anonymous type is an ordinary type, you can use some heuristics:

public static class TypeExtension {

    public static Boolean IsAnonymousType(this Type type) {
        Boolean hasCompilerGeneratedAttribute = type.GetCustomAttributes(typeof(CompilerGeneratedAttribute), false).Count() > 0;
        Boolean nameContainsAnonymousType = type.FullName.Contains("AnonymousType");
        Boolean isAnonymousType = hasCompilerGeneratedAttribute && nameContainsAnonymousType;

        return isAnonymousType;
    }
}

另外一个很好的启发使用是如果类名是一个有效的C＃的名字（有没有有效的C＃类名生成匿名类型 - 使用常规EX pression此）。

Another good heuristic to be used is if the class name is a valid C# name (anonymous type are generated with no valid C# class names - use regular expression for this).