确定一个类型是一个匿名类型
问题描述:
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?
答
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).