对JSON输出在ASP.NET MVC应用程序过滤领域的最佳方式对象 [英] Best way to filter domain objects for json output in an ASP.NET MVC application

问题描述

如果我渲染asp.net常规视图MVC，在我的网页显示的那些我专门写出来的唯一的域对象的属性。例如：

If I'm rendering a regular view in asp.net mvc the only domain object properties that show up in my page the ones I specifically write out. For example:

<div><%= Customer.FirstName %></div>

不过，如果我序列化域对象的JSON它将包括所有的财产。例如：

However, if I serialize a domain object for json it will include every property. Example:

public JsonResult Customer (int? id)
{
    Customer customer = _serviceLayer.GetCustomer (id.Value);

    return Json (customer);
}

因为我不想暴露了什么是在这种情况下筛选JSON输出性能的最佳方式每一位客户的财产？你可以像使用的UpdateModel一个包含/排除列表（）？使用代理类，如公共类JsonCustomer？你有什么建议？

Since I don't want every Customer property exposed what is the best way to filter the output properties for json in this case? Can you use an include/exclude list like UpdateModel()? Use a proxy class such as public class JsonCustomer? What would you recommend?

推荐答案

我使用匿名类型是：

var customer = from c in serviceLayer.GetCustomers()
               where c.Id == id.Value
               select new { FirstName = c.FirstName };

这不仅是一个好主意。相反，它是抵御外主叫JSON（）的时候，如果你的对象图包含循环引用，你会得到。

This is not just a good idea. Rather, it's protection against the exception that you will get when calling Json() if your object graph contains a circular reference.

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