将任何类转换为键值对 [英] Convert any class to a keyvaluepair
本文介绍了将任何类转换为键值对的处理方法,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
我有很多(也许很多)这样的简单类
I have a number (maybe a lot) of classes that are simple like so
public class ResultA
{
public DateTime Date { get; set; }
public int Year { get; set; }
public int Month { get; set; }
public int Day { get; set; }
}
public class ResultB
{
public string Number { get; set; }
public int Count { get; set; }
public string Update { get; set; }
public int Jewels{ get; set; }
}
没有通用接口,但是它们没有简单的方法属性.
There is no common interface, but they don't have methods simply properties.
我希望能够将这样的任何类型转换为具有属性名称和值(如果已设置)的 KeyValuePair< string,string>
.
I would like to be able to convert any type like this into a KeyValuePair<string,string>
with the property name and the value if it is set.
反正有做这件可怕的事吗??
Is there anyway of doing this horrible thing!?
推荐答案
像这样使用反射:
[Test]
public void DoStuff() {
List<object> things = new List<object>() {
new ResultA(){Date = DateTime.Now, Month = 34}, new ResultB(){Count = 1, Jewels = 4, Number = "2", Update = "0"}
};
foreach (var thing in things) {
foreach (var property in thing.GetType().GetProperties()) {
Trace.WriteLine(property.Name + " " + property.GetValue(thing));
}
}
}
输出:
Date 10.06.2015 13:46:41
Year 0
Month 34
Day 0
Number 2
Count 1
Update 0
Jewels 4
您还可以使用扩展方法:
You can also use a extension method:
public static class ObjectExtensions {
public static List<KeyValuePair<string, object>> GetProperties(this object me) {
List<KeyValuePair<string, object>> result = new List<KeyValuePair<string, object>>();
foreach (var property in me.GetType().GetProperties()) {
result.Add(new KeyValuePair<string, object>(property.Name, property.GetValue(me)));
}
return result;
}
}
用法:
[Test]
public void DoItWithExtensionMethod() {
List<object> things = new List<object>() {
new ResultA(){Date = DateTime.Now, Month = 34}, new ResultB(){Count = 1, Jewels = 4, Number = "2", Update = "0"}
};
foreach (var thing in things) {
var properties = thing.GetProperties();
foreach (var property in properties) {
Trace.WriteLine(property.Key + " " + property.Value);
}
}
}
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