使用反射获取函数的参数值

本文介绍了使用反射获取函数的参数值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

亲爱的所有人，我在签名功能方面遇到了麻烦

void event （ ref string BusinessObjectInfo， out bool BubbleEvent） {

我想用使用反射在函数内部的BubbleEvent值。你能建议我该怎么做。 我试过以下 var v = MethodBase.GetCurrentMethod（）。GetParameters（）。GetValue（1） 但仍有问题，不知道从哪里获得价值。 感谢您的帮助

解决方案

正如彼得所说，它没有多大意义：为什么要通过反射从函数内部访问参数？ 特别是当它是一个 out 参数时，因为它没有你在实际方法中给出的值以外的值... 我不能想到也许你试图以完全错误的方式做某事，并且应该退后一步再思考。

该参数定义为 out ，这意味着它不需要通过调用方法初始化 - 您应该在函数内为其赋值。 如果你想传入一个值，更改它并将其传回去使用 ref 而不是出

Dear All, I am having trouble in a function of signature

void event(ref string BusinessObjectInfo, out bool BubbleEvent) {

I want to use value of BubbleEvent inside the function using reflection. Can you suggest How should I go for it. I have tried following var v = MethodBase.GetCurrentMethod().GetParameters().GetValue(1) but still in trouble don't know where to get the value. Thank you for help

解决方案

As Peter says, it doesn't make a lot of sense: "Why should one access a parameter from inside the function by reflection?" Particularly when it is an out parameter, as it has no value other than that which you give it in the actual method... I can't hep thinking that perhaps you are trying to do something in entirely the wrong way, and should possibly take a step back and think again.

The parameter is defined as out which means it does not need to be initialised by the calling method - you are supposed to assign it a value within your function. If you want to pass a value in, change it and pass it back out use ref instead of out