如何遍历类的属性？ [英] How to loop through the properties of a Class?

问题描述

我发现这个问题很普遍，但是我没有找到想要的东西。也许是因为我想做其他事情。

I have found that this question is quite common, but i didn't found what i am looking for. Maybe 'cause i want to do something else.

因此，我目前正在为网络爬虫编写代码，需要比较列表中的对象。
我想做的事ist遍历列表，找到重复项，当发现重复项时将它们合并。

So i am currently coding for a webcrawler and need to compare objects in a list. What i want to do ist loop through the list, find duplicates, and when i found duplicates merge these.

合并时，我想：

-保留最新/最新对象的信息。

-如果最新对象的字段为空，则取旧对象字段的值

When merging i want to:
- keep the information of the latest/most up to date object.
- if a field of the latest object is empty, take the value of the old objects field

我认为循环遍历对象的属性两个对象将是最简单的。

I thought looping through the properties of the two objects would be the easiest.

我已经尝试了很多使用反射的方法，我所能实现的就是显示类的属性名称。我想要的是它们的值。

I've tried a lot of things using reflection, all i could achieve was to show the property names of a class. What i want though is their values.

如果可能的话，我会使用这样的循环：

If possible, i would use a loop like this:

foreach(property prop in myObject)
{
    string value = myObject.prop;
    //do something
}

有可能吗？还是我错过了什么？

Is that possible? Or am i missing something?

推荐答案

类似的东西：

object obj = new object();
PropertyInfo[] properties = obj.GetType().GetProperties();
foreach (var p in properties)
{
    var myVal = p.GetValue(obj);
}   

请注意，您需要分配对象并将其传递给PropertyInfo。

Note you need to allocate the object and pass it into the PropertyInfo.

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