C＃.net 4.帮助从字典对象的子组中提取数据

Question

I am sort of new to C# programming and am having trouble with the dictionary using .net 4.0.

I have sent a JSON object through JavaScriptSerializer into a Dictionary<string, object> object which worked great at extracting all the data.

JSON chain

{ 
    "name" : "MrMonkey", 
    "type" : "monkey", 
    "location" : { 
        "id" : "125235",
        "name" : "zoo" 
    }, 
    "owner" : { 
        "id" : "4211", 
        "name" : "Biggles" 
    }
}

In this dictionary object created I have daughter levels that store information I need to extract from the dictionary and store elsewhere. Say I want is to extract the location name. As you can see it also shares a keyname with the parent level and another daughter level.

For the parent level I can extract information as simply as contact.name = dict["name"].ToString(); but how would I go about extracting the required information from the daughter levels?

I was able to create a work around in JSON.net to get this to work with a little bit of fiddling by checking the datatype and then converting it if it fell within a certain type, but this was aggravating and I been told by the boss not to use JSON.net.

Answer 1

Without having tried, I'd try something like: (dict["location"] as Dictionary<string,object>)["name"] , as I'd presume from the JSON you've provided, that the daughters themselves are again deserialized into Dictionary s.

Anyway, the debugger will help you a lot here. If you set a breakpoint on the line after the call to the deserialization, you can inspect your dictionary (point the mouse to it and wait a second) and have a look at how your structure is now stored in C# objects.

Answer 2

I would try to create a class that would fill it with the json result. Then work normally and if need be, serialized into json again.

public class MyObject
{
  public string name { get;set; }
  public string type { get;set; }
  public Location location { get;set; }
  public Owner owner { get;set; }
}

public class Location
{
  public int id { get;set; }
  public string name { get;set; }
}

public class Owner
{
  public int id { get;set; }
  public string name { get;set; }
}

Answer 3

Have you tried using dict["location"]["name"] ?

I assume that the daughter level is just treated as another dictionary stored in the parent one...