用javascript读取JavaScriptSerializer c＃

Question

In one of my webservice methods I serialized my object calling JavaScriptSerializer.serilize in c#. Now when that returns a string to my javascript I would like to be able to call the properties from the object. I tried, results.d.ID but that did not work. Here is what it returns. Thanks for any help.

 JavaScriptSerializer oSerializer = new JavaScriptSerializer();
        Inventory item = Inventories.GetInventoryByID(inventoryID);
        string jsonObject = oSerializer.Serialize(item);

For example I would like to get the ID out. how would I do that?

{"d":"{\"ID\":\"589652cf-2ccd-49c1-b457-f2793a2a2424\",\"Brand\":{\"ID\":\"b728281b-cf3c-4ee0-ba3d-a3573b886b14\",\"Name\":\"Puma1\",\"ParentBrand\":null,\"BrandChildren\":{\"IsValueCreated\":false,\"Value\":[]}},\"DateAdded\":\"\\/Date(1327695794000)\\/\",\"AddedBy\":{\"ID\":\"d6e1f2e7-f8d1-4809-aadd-4cacd5c2bc43\",\"Email\":\"mojo@yahoo.com\",\"FirstName\":\"maurice\",\"MiddleInitial\":\"l\",\"LastName\":\"bachelor\",\"Address\":\"111 main st\",\"Phone\":\"2162330333\",\"IsAdmin\":true,\"DateJoined\":\"\\/Date(-62135578800000)\\/\",\"HasPurchased\":false,\"AgreeTerms\":true,\"LastPurchaseDate\":null,\"Password\":\"maurice\",\"CompanyName\":\"sneakers101\",\"AllowEmail\":false,\"PurchaseOrders\":{\"IsValueCreated\":false,\"Value\":[]}},\"LastUpdated\":\"\\/Date(1327688594000)\\/\",\"Instock\":true,\"NumberInStock\":12,\"MainPictureUrl\":\"\",\"AlternativePictureUrl\":\"\",\"ThumbNailUrl\":\"\",\"Price\":12.99,\"Like\":0,\"Discount\":1,\"ItemReleaseDate\":\"\\/Date(568011600000)\\/\",\"ItemCondition\":\"Great\",\"Size\":12,\"ItemNumber\":3,\"IsFavorite\":false,\"Details\":\"test Details\",\"Name\":\"Test\"}"}

Answer 1

As Inerdial said you have strange nested JSON value. If data is in format you actually want - use JSON.parse to re-parse values like:

JSON.parse(results.d).ID .

Answer 2

这就是全部内容： asp.net的ajax d

Answer 3

var jsonObj = theObject; // Assuming it is parsed somehow

var embeddedJsonObj = $.parseJSON( jsonObj.d );

// embeddedJsonObj.ID is the ID you need.

Demo

Answer 4

It looks like your underlying problem is the manually JSON serialization .

Since ASP.NET will automatically JSON serialize the result of your method, your manually serialized jsonObject string is then getting serialized a second time. That's why Alexei's answer works. jQuery deserialized it once, leaving you with a .d property containing a JSON string, and then JSON.parse() deserialized that inner JSON string.

However, that is doubly inefficient because your data is being serialized twice and deserialized twice. Instead, just do this:

[WebMethod]
public Inventory GetInventoryById(inventoryID) {
  return item = Inventories.GetInventoryByID(inventoryID);
}

Then, ASP.NET will return JSON that looks like this:

{"d": {"ID": "589652cf-2ccd-49c1-b457-f2793a2a2424", /* the rest of your data here */ }}

Which jQuery (assuming you're using jQuery) will automatically JSON.parse() since ASP.NET responds with an application/json Content-Type, and then you'll be able to index into like results.d.ID .