C＃泛型类型属性 [英] C# Property with Generic Type

问题描述

我有一个类：

 公共类class1
{
公共字符串Property1 {获取;集;}
公众诠释Property2 {获取;集;}
}
 

将被实例化的：

 变种C =新1级（）;
c.Property1 =嗒嗒;
c.Property2 = 666;
 

所以原谅（我是新来的仿制药），我需要另一个类与通用类型的属性，使Property1或Property2可以用来设置Property3：

 公共类的Class2
{
公共GenericType Property3 {获取;集;}
}
 

我希望能够为：

  VAR C2 =新的Class2（）;
任何类型的c2.Property3 = c1.Property2 //任何财产。
 

解决方案

@bytenik我认为发端却要求3类被定义为包含一个通用性。当他/她有从1类或类2的属性，在这种情况下，是一个字符串/ int值，3类的属性能够处理这两种情况。

这样，

 公共类Class3的＆LT; T＆GT;
{
 公共牛逼Property3 {获取;集;}
}
 

我觉得意图是海报要做到这一点：

  Class3.Property3 = Class2.Property2
 

我觉得海报将需要它转换为类型T的这项工作虽然。

看被张贴为例链接：<一href="http://stackoverflow.com/questions/271347/making-a-generic-property">http://stackoverflow.com/questions/271347/making-a-generic-property

下面是你可以做的：

 命名空间GenericSO
{
    公共类的Class1
    {
        公众诠释property1 {获取;集;}

    }

    公共类类2＆LT; T＆GT;
    {
        公共牛逼property2 {获得;组; }
    }

    类节目
    {
        静态无效的主要（字串[] args）
        {
            1级C1 =新1级（）;
            c1.property1 = 20;

            等级2＆LT; INT＆GT; C2 =新的Class2＆LT;诠释＆GT;（）;

            c2.property2 = c1.property1;
        }
    }
}
 

请注意您的模板property2得到property1的价值。 你要告诉它什么样的通用的。

I have a class:

public class class1
{
public string Property1 {get;set;}
public int Property2 {get;set;}
}

Which will be instantiated:

var c = new class1();
c.Property1 = "blah";
c.Property2 = 666;

So bear with me (I am new to generics), I need another class with a property of a generic type so that Property1 or Property2 can be used to set Property3:

public class Class2
{
public GenericType Property3 {get;set;}
}

I want to be able to:

var c2 = new class2();
c2.Property3 = c1.Property2 // Any property of any type.

解决方案

@bytenik I think the originator is asking that class3 be defined to contain a generic property. That way when he / she has a property from class1 or class2 which in this case is a string / int that class3's property could handle either case.

public class Class3<T>
{
 public T Property3 {get;set;}
}

I think the intent is the poster wants to do this:

Class3.Property3 = Class2.Property2

I think the poster will need to cast it to type T for this to work though.

Look at the link that was posted for an example: http://stackoverflow.com/questions/271347/making-a-generic-property

Here is what you can do:

namespace GenericSO
{
    public class Class1
    {
        public int property1 { get;set;}

    }

    public class Class2<T>
    {
        public T property2 { get; set; }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Class1 c1 = new Class1();
            c1.property1 = 20;

            Class2<int> c2 = new Class2<int>();

            c2.property2 = c1.property1;
        }
    }
}

Notice how your template property2 gets the value of property1. You have to tell it what kind of generic.

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