How To Deserialize JSON String
Nov 14, 2011
I've the following JSON string to deserialize:
[{"application_id":"1","application_package":"abc"},{"application_id":"2","application_package":"xyz"}]
I'm using DataContractJsonSerializer method. It is made up of array of items and I couldn't find an example using VB.Net that can deserialize this structure. I have the following Application class to store this information:
<DataContract(Namespace:="")> _
Public Class ApplicationItem
<DataMember(Name:="application_id")>
[Code] .....
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Feb 21, 2011
I'm strugling the whole day with the next JSON string
{
"0":{"link":"afbeeldingenplaatje1.jpg"},
"1":{"link":"afbeeldingenplaatje2.jpg"},
"2":{"link":"afbeeldingenplaatje3.jpg"}
}
How can i deserialize this? What's wrong with the next code (vb.net)
Public Class DataString
Private m_link As String
Public Property link() As String
Get
[CODE]...
It returns always an empty result.
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Feb 25, 2012
I am trying to deserialize a JSON string using VB.net and cannot seem to pull the values out of the finished List.[code]I am told "Index was out of range. Must be non-negative and less than the size of the collection."
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Sep 13, 2011
I'm having an issue with getting some of the values from with this json string:
{
"kind": "shopping#products",
"etag": ""YZWJaKE3MHROIW8rCIlu9mAACLM/6qxBB-GwuSPy5L3_zVS6sS2NYFI"",
"id": "tag:google.com,2010:shopping/products",
"selfLink": "https://www.googleapis.com/shopping/search/v1/public/products?country=US&
[code]....
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Mar 18, 2011
I'm new to VB and trying to write a webservice that exports and imports JSON.I'm using JSON.NET 3.5 and can serialize fine:My Token class is:
<DataContract()> _
Public Class Token
<DataMember()> _
Public TokenID As String
<DataMember()> _
Public Issued As Date
[Code]...
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Feb 23, 2010
We are trying to consume WCF service which returns employee details in JSON Format.like:
{"d":[{"_type":"Employee:#","BigThumbNailURI":null,"ID":1,"Name":"E1"},{"_type":"Employee:#","BigThumbNailURI":null,"ID":2,"Name":"E1"}]}
From VB.net code behind when I am trying to deserialize it it's stating that "Expecting state 'Element'.. Encountered 'Text' with name '', namespace ''."
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Feb 1, 2011
I have a json array which is formatted as follows:
[Code]...
How can I deserialize this in such a way that I can have a list of objects indexed by property? Meaning, I want to be able to access the data like this: MyList(96).lastproperty or MyList(96).listofstuff.yetanother and have it return the proper datatype too? Is that even possible in vb.net?
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Mar 3, 2009
I'm new to VB and trying to write a webservice that exports and imports JSON.I'm using JSON.NET 3.5 and can serialize fine:
My Token class is:
<DataContract()> _
Public Class Token
[code].....
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Mar 24, 2011
In VB.Net class, I have a JSON data as string. I want to convert them to LINQ class Object.[code]....
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Feb 3, 2012
I am attempting to deserialize a simple JSON array to .NET objects using the JSON.NET library in visual basic.
For the life of me, I cannot figure out what I am doing wrong here. My JSON string deserializes into appropriate objects (9 in total), but none of the properties are populated.
My code:
Public Class result
Public Property id As Integer
Public Property vote_percentage As String
[Code]....
When using JSON.NET you have to have constructor methods (i.e. Sub New) in order for the properties to get set during the Deserialization call.
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Jan 18, 2012
I have a JSON response from a web service that I need to be converted to an object then to an array. My response is similar to the one below:
{"status":{"error":"NO","code":"200","description":"none","message":"Request ok"},"geolocation":{"lat":"38.89515","lng":"-77.0310"},"stations":[{"country":"United States","regPrice":"0.00","midPrice":"0.00","prePrice":"0.00","streetAddress":"1401, I St[code]....
I am doing this is VB.NET within a console for now. Basically I am trying to create a simple way to test my API calls and output the information. What I am trying to accomplish is having to loop through the JSON array and list the stations.
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Apr 24, 2012
My XML String:
<?xml version="1.0" encoding="utf-16"?>
<Category>
<Item>
<ItemID>0</ItemID>
<ItemName> Item Name : 0</ItemName>
[Code]...
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Dec 15, 2010
i have the following code, please let me know where m goin' wrong..
VB
For Each dr As DataRow In dvItems.Table.Rows
strItems &= "'" & dr("ItemTitle") & "',"
Next
[code]....
while debugging in firefox with firebug data is showing null...What i'm doin' here ?
Edit :Autocomplete.js needs data in this format 'mouse','keyboard','led'Before i was doin' this without JSON, it was working fine.
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May 9, 2012
I am been stuck on this for 3 days now...I have been accessing the twitter api to pull a user_timeline for a list of users and the json that comes back is impossible to work with. I tried to deserialize it using javascriptserializer and get an error:invalid object passed in , ':' or '}'
Now this is frustrating since I expect the json being returned to be error free. Then I tried json.net and split the posts using string.split and tried to convert each post to Jobject or jarray. for Jarray I get
'unexpected end of content while loading jArray
[Code]...
Now I have formatted the code here and not pasted the whole file but it does look like valid json to me and I do not alter anything after receiving the stream from the twitter api. Can someone please point me in the right direction? I really need to get this stuff parsed?
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Jul 28, 2011
how to receive and send back json. Hope someone can help me on this. I understand by examples.
On my clientside, I am sending a ajax json string "name":"theName" to the server side and would like the server side to return a string saying "welcome &name ".
Client-side code
<!DOCTYPE html>
<html>
[Code]....
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Dec 4, 2011
I have a .Net WCF Rest service returning Json to be consumed by an Android app.
In debug, the WCF service correctly has the return value (Json) as:
{"BaseLoyaltyPoints":1480,"BonusLoyaltyPoints":0,"BrandId":1414, [etc...] }
Also in debug, when it returns to Notepad, the return value has changed to:
{"BaseLoyaltyPoints":1480,"BonusLoyaltyPoints":0,"BrandId":1414, [etc...] }
[Code]...
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Oct 24, 2011
I'm trying to create this JSON string but having problem creating it.I'm getting System.NullReferenceException error.Here is the json string that I would like to create{"id":["1","2","3","4"]},"sid":["s1","s2","s3","s4"]}Here is the code I have so far.
Imports System.Web.Services
Imports System.Data
Partial Class test_sidetab
[code].....
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Nov 16, 2011
I have to the replication.That time have to pass String as JSON
{"Table1" :
[
{"Name" : "MyCustomer","Description" : "cutomer","Status" : "1"}, {"Name" : "Kiraa","Description" : "My","Status" : "1",}[code]......
This is my format of JSON result. I want to convert to DataSet.I have installed JSON.NET library. I am using C#.net
public bool convertJSONToDataSet(string strBusinessUnit, string strExecutiveCode, string strTableName, String jsonContent)
{
DataSet dataset = JsonConvert.DeserializeObject<String>(jsonContent);[code].....
here this statement is wrong DataSet dataset = JsonConvert.DeserializeObject<String>(jsonContent); how to covert to a JSON string to a Dataset.
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Jul 15, 2010
[code] please help me how to get and/or evaluate object from this json string with VB.Net.
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Nov 17, 2011
I was using a JSON MAKER class to make a JSON string to send off from my webservice - it was way too slow - so I thought I would do the string manipulation right in the recordset loop - how could I go wrong - it is only 1141 records![code]...
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Apr 22, 2012
I have to de-serialize a JSON string, I am no expert so I give you one example:
JSON String:
{
"myStuff": [
{
[Code]....
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Nov 12, 2010
Below is my JSON formated String
{"AliasName": "ysiCountryInfo", "DataClass": {"Description":"United States 111","Code":"usa","WriteOffTaxPointAdjustment":0,"IndexationRounding":6}}
I would like to deserialize object into below class
[code].....
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May 3, 2011
this is the JSON string the data is required in to be sent using a given URL.[code]I am using VB.net and i need to create this string using VB.net. I tried using namevaluecollection and doing a POST. I also tried making a string and send data using GET. Both failed. how can i do this?
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May 2, 2012
I have created a function which essentially enables me to output anything I need from my database in a similar method to Facebook's FQL querying method as a JSON text result. I can also use the same function to get the output as a Dictionary, or List of(Dictionary) to use with VB functions for other purposes.
[Code]...
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Mar 28, 2011
I am looking for a vb.net library where I can insert data into an object and have it spit out a json formatted string, and also take the string in again to rebuild the object.I am not that concerned with mapping it to preexisting objects.I have searched around and every single library I've found either can't read the strings in again, interprets them as one long string instead of breaking them up into parts, or fails to work entirely (asp.net can't even find any public members).
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Jul 17, 2011
How can I convert a JSON string to an array OR a JSON string to XML in VB.NET? I know how to do this in C#, as I have read dozens of articles on it, however, I am unable to figure out how to achieve the same result in VB.NET.
I'm using the System.Web.Script namespace via System.Web.Extensions.dll (from Microsoft).
I'm willing to use an additional DLL file if needed.
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Mar 2, 2010
I'm sure this has been asked before but I'm not finding quite the information I'm needing so I thought I'd post this.
I've written a PHP script that returns a simple JSON object that looks like this:
{"status":"success","level":"admin"}
I'm doing a standard web request that submits the required data to the script over the internet and that's working fine.
Now, I want to use JSON.NET to pull out the individual variables so I can know what the values of "status" and "level" are. The problem is, I have no idea where to start.
I'm doing this in VB.NET (on the .NET Compact Framework).
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Sep 8, 2011
I'm trying to setup a WCF web service to be consumed by JavaScript using JSON and jQuery.I've noticed that you can send JSON without a DataContract if the service method parameters match the naming structure of the JSON object:
<ServiceContract(Namespace:="http://foo.com/bar")>
<AspNetCompatibilityRequirements(RequirementsMode:=AspNetCompatibilityRequirementsMode.Allowed)>
[code]....
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Feb 15, 2011
I am accessing the facebook api and using the json.net library (newtonsoft.json.net)I declare a Jobject to parse the content and look for the specific elements and get their values. Everything works fine for the first few but then I get this unexplained nullexception error " (Object reference not set to an instance of an object)Now I took a look at the declaration but cannot see how to change it. Dim jobj as JObject = JObject.Parse(responseData) message = jobj("message").tostring
The error occurs at the last line above.I check to see if message is null and then look for the next desired field as follows
[Code]...
This is one example where "message" does not appear in the first few lines but appears later. So what I do is look for position of message and description and which ever is first go and get that and if I get an error or the fields do not return anything, I try and parse by regex and even that is not working right.
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Nov 24, 2011
I have two experimental web services. One is an asmx contained within a .net web application. The other is a WCF service library being invoked from the web application.The asmx basically does everything I need, but I think WCF would be better, except that it doesn't do anything as I would expect after fiddling with the asmx service.For example, the same method behaves differently in each:
' ASMX
<WebMethod(BufferResponse:=True, EnableSession:=False)>
Function Test(aObject as Object) as Object
' object will have been successfully serializaed into a dictionary
[code]...
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