两个实体之间的比较 [英] Comparison between two entities

问题描述

你好，

我正在为我的设备使用课程：

hello,
I'm using a class for my equipemnts:

public class EQUentity
    {
        public int ID_EQU { get; set; }
        public string CODE_EQU { get; set; }
        public string DESIGNATION_EQU { get; set; }
    }

然后我创建了两个实体：

then I create two entities:

EQUentity EQU1 = new EQUentity 
EQUentity EQU2 = new EQUentity

EQU1.ID_EQU = ....;
...

EQU2.ID_EQU = ....;
......

现在如何控制两个实体是否==

你能帮忙吗？我有一个CLASS女巫扫描权利的元素进行这种控制？



像这样：

Now how to control if the two entities are == or not?
Can you help me with a CLASS witch scans the elements of the entitiy to do this control?

Like this:

public class compare(EQUentity E1, EQUentity E2)
    {
        .....
        ....
    }

最好的问候

Best regards

推荐答案

在 Equals（）上阅读以下内容：http://msdn.microsoft.com/en-us/library/ms173147%28v=vs .80％29.aspx [ ^ ]

Read the following on Equals() : http://msdn.microsoft.com/en-us/library/ms173147%28v=vs.80%29.aspx[^]

一个小例子：

A little example for you:

if(EQU1.ID_EQU.Equals(EQU2.ID_EQU))
{
    //Logic here
}

使用Object.Equals方法（对象）来比较c＃中的对象。



转到下面的链接，它将帮助您了解Object.Equals方法。



http://msdn.microsoft.com/en-us/library/bsc2ak47。 aspx



你必须在你的班级中重写equals方法。

Use Object.Equals Method (Object) to compare to object in c#.

Go To Below Link, It will help you to understand Object.Equals method.

http://msdn.microsoft.com/en-us/library/bsc2ak47.aspx

You have to override equals method in your class.

public override bool Equals(object obj)
      {
          EQUentity equOBJ = obj as EQUentity;
          if (equOBJ == null)
          {
              return false;
          }
          else
          {
              if (ID_EQU == equOBJ.ID_EQU && CODE_EQU.Equals(equOBJ.CODE_EQU) && DESIGNATION_EQU.Equals(equOBJ.DESIGNATION_EQU))
              {
                  return true;
              }
              else
              {
                  return false;
              }
          }
      }

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