通过属性的方法在C＃ [英] Pass Property to the Method in C#

问题描述

我需要通过一些类型的属性选择（每次一型），假设这是我喜欢的类型：

I need to pass selection of properties of some types(one type each time), assume this is my type:

public class Product {

    [PrimaryKey]
    public long Id { get; set; }
    [DisplayName("Name")]
    public string Title { get; set; }
    [Foreignkey(Schema = "Products", Table = "MajorCategory", Column = "Id")]
    [DisplayName("MCat")]
    public string MajorCategory { get; set; }
    [Foreignkey(Schema = "Products", Table = "Category", Column = "Id")]
    [DisplayName("Cat")]
    public string Category { get; set; }
    public long CategoryId { get; set; }
    [BoolAsRadio()]
    public bool IsScanAllowed { get; set; }
}

所以，我需要一种方法来传递这个类型的属性到列表其他类型（目标类型），并且使用属性名和属性，而我不需要值，类似下面的伪代码：

So I need a way to pass the list of properties of this type to other Type(Target Type), and use property name, and attributes, and I don't need values, something like the following Pseudo-code:

List<Property> propertyList = new List<Property>();
propertyList.Add(Product.Id);
PropertyList.Add(Product.Title);
TargetType target = new TargetType();
target.Properties = propertyList;


public class TargetType  {

   public List<Property> Properties { get; set;}

   GetAttributes() {

      foreach(Property item in Properties){

         Console.WriteLine(item.Name)

         //Get Attributes
      }
   }


}

有没有办法通过，就像 Product.Id 和使用名称和该属性？我不知道，但也许的PropertyInfo 帮助，我想正好可以通过对象的名单，但在这种情况下，我不能使用属性和名称，你有什么建议，处理呢？或者这样的事情？如果我错了都让我怎么能实现呢？

Is there any way to pass just like Product.Id and use name and attributes of that? I don't sure but maybe PropertyInfo can help, I think just can pass List of Object but in that case I can't use attributes and names, what is your suggestion to handle this? or something like this? if I am wrong at all so how can I implement it?

推荐答案

您可以使用反射在.NET这里：

You can make use of reflection in .NET here:

List<PropertyInfo> propertyList = new List<PropertyInfo>();
Type productType = typeof (Product);

propertyList.Add(productType.GetProperty("Id"));
propertyList.Add(productType.GetProperty("Title"));
TargetType target = new TargetType();
target.Properties = propertyList;

public class TargetType  {

   public List<PropertyInfo> Properties { get; set;}

   List<object> GetAttributes()
   {
       List<object> attributes = new List<object>();

       foreach(PropertyInfo item in Properties)
       {
           Console.WriteLine(item.Name);
           attributes.AddRange(item.GetCustomAttributes(true));
       }

       return attributes;
   }
}

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