Encode An Array To JSON?
Feb 23, 2009I need to pass back a JSON result for a routine I am working with. How can I encode an Array I created to JSON? I am writing this in VB.net
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Convert JSON To Array OR JSON To XML?
Jul 17, 2011How 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.
Encode And Only Encode Html Special Characters In URL?
Mar 1, 2012Say only &, ?, /,.
I want the rest to remain intact, including chinese or japanese characters. Those can be inserted into get just fine right?
Asp.net - Serialize Array To Json?
Jun 23, 2011I have the following code which serialize an array to json:
Dim col1 As New ArrayList
Dim col2 As New ArrayList
objJSONStringBuilder = New StringBuilder()
objSQLConnection = New SqlConnection(System.Configuration.ConfigurationManager.AppSettings("connString"))
objSQLCommand = New SqlCommand("select col1, col2 from table1", objSQLConnection)
objSQLCommand.Connection.Open()
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Deserialize Json Array In .net?
Feb 1, 2011I 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?
Parsing A JSON Array?
May 6, 2011I'm trying to parse this array using JSON.NET
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Create JSON Array Using Program?
Mar 5, 2012How to create this JSON array using vb.net array [code]...
View 1 RepliesDeserializing Json Array Into .net Class?
Feb 16, 2010I'm having problems deserializing some json data, getting InvalidCastExceptions and the like.
Can anyone point me in the right direction?
Here's the json i'm wanting to deserialize;
[{"OrderId":0,"Name":"Summary","MaxLen":"200"},{"OrderId":1,"Name":"Details","MaxLen":"0"}]
Here's my code;
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JavaScript Serialize Array To JSON?
Mar 28, 2011I have "Form Designer" web application, in which I need to post the controls of the new form to an ASP.Net page to insert to DB, each time I create form control. I push it into two dimensional array, when user click save, this array will be serialized and sent to Server Page using Ajax.
Array string After Serialization Looks Like :
[
[
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Deserialize A Simple JSON Array To .NET Objects?
Feb 3, 2012I 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.
Receive JSON Array As Argument In Web Service?
Jul 6, 2010I'm using a web service programmed in Visual Basic .NET 3.5 to receive a JSON Array sent from other application.
I'm sending a JSON string like this one:
[{"idRecoleccion":1,"PIN":"553648138"},{"idRecoleccion":2,"PIN":"553648138"}]
And I'm receiving the code in Visual Basic .NET as follows:
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Javascript - JSON Array Type Resolution In ASP.Net Webservices?
Jan 6, 2011I have worked out how to pass my custom objects into ASP.Net json webservices. Works a charm. Problem I am having is passing in straight arrays of my custom objects or alternatively passing in arrays that are parameters of my custom objects. So for example...
Public Class WebService1
Inherits System.Web.Services.WebService
<WebMethod()> _
[code]....
Fails with error: The value "System.Collections.Generic.Dictionary`2[System.String,System.Object]" is not of type "WebApplication1.WebService1+Person" and cannot be used in this generic collection. Parameter name: value
So how do I explain to ASP.net that it is infact an array of Person? note: That changing the function to as List(of Person) or ArrayList does work but given that I implement my own custom collections this is not optimal for me.
UPDATE: Ok so what I have worked out so far is that this problem is definitely associated with how the JavascriptSerializer uses the SimpleTypeResolver to resolve types. Basically if I do something like this
Public Function AddPersonList(ByVal PersonList As String) As PersonList
I can recreate the error using the following code.
Dim PersonList As PersonList = jsonSerializer.Deserialize(Of PersonList)(PList)
However when I provide my own custom type resolver along the lines of
Dim jsonSerializer As New JavaScriptSerializer(New MyCustomTypeResolver)
I can successfully create an instance of my custom list.Now I have worked out how to provide my own custom convertor in the web.config file. Along the lines of this....
<system.web.extensions>
<scripting>
<webServices>
[code]....
PSS: I have tried to use the assembly fully qualified name as specified in the docs for the SimpleTypeResolver (SimpleTypeResolver MSDN) but this throws a "Operation is not valid due to the current state of the object." exception - which is an error caused when the TypeResolver cannot resolve the name?
My problem was never passing in a List(of Object) into my webservice (I simply posed the question as such to simplify it for stackoverflow). In such a case I would be willing to completely accept using a Generic List(of) but my problem was actually that one of my custom objects implemented a property with a strong typed List(of) so for example:
Customer {CustomerID AS Guid, FirstName AS String, LastName AS String, EmailAddresses AS EmailAddressList}
which now needs to be changed to
Customer {CustomerID AS Guid, FirstName AS String, LastName AS String, EmailAddresses AS List(Of EmailAddress)}
This is admittedly not the end of the world and is probably better in the webservice context (as you have suggested) but definitely a detriment when it comes to internal application usage of my Collection properties. What this means is that once I have this property I either need to cast it to my CustomCollectionList every time I want to use some advanced feature or I need to implement another property which exposes the CustomCollectionList.
Json - JavaScriptSerializer() Deserializing Dictionary Array Members
Dec 4, 2011I am trying to deserialize a JSON string that looks like so: {'type':'clientlist','client_list':[]} I am using JavaScriptSerializer() to do it. For some reason the JavaScriptSerializer() is choking on the member 'client_list'. It doesn't give very good info. The error it gives is:
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Make A MVC 2 Json Serializable Structure With Apropriate PK Array Keys?
Jan 1, 2010I have a table with a Int PK column and a name. I want to load them into an object of some sort and return them using Json() ActionResult in MVC 2. I am having a hard time finding a built-in structure that is supported for serialization that keeps a simple key/value structure in tact.
Ultimately I would like to do something like:
Function JsonList() As ActionResult
Dim Things = New Dictionary(Of Integer, String)
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Twitter Json - Unable To Convert To Jobject Or Jarray Using Json.net / Javascriptserializer?
May 9, 2012I 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?
JSON.NET Deserialize - Next JSON String - Returns Always An Empty Result
Feb 21, 2011I'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.
Receiving Json And Send Back Json On Server-side?
Jul 28, 2011how 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>
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Deserializing JSON Into Byrefrence ParametrizedConstructor Object With Json?
Nov 12, 2010Below 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
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Convert JSON String To JSON Object?
Jan 18, 2012I 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.
Using JSON.NET To Parse JSON Generated Through PHP?
Mar 2, 2010I'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).
.net - JSON Parsing Using JSON.net?
Feb 15, 2011I 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
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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.
Asmx Json Serialization Versus Wcf Json Serialization?
Nov 24, 2011I 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
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.net - Encode String To UTF-8?
May 17, 2011I've made a class to encode a string
Public Class UTF8
Public Shared Function encode(ByVal str As String)
Dim utf8Encoding As New System.Text.UTF8Encoding
Dim encodedString() As Byte
encodedString = utf8Encoding.GetBytes(str)
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Return encodedString.ToString() always returns "System.Byte[]". How could I get the real UTF-8 String?
How In .net We Can Encode String For SQL
Jul 20, 2011all ` should be replaced with `` right? Well, is there a function built in by vb.net that does that sort of thing already?
That way I do not have to encode it.By the way, I do not access sql database directly. Basically I am creating a text file and that text file contains raw sql statements. Most of the answers deal with accessing sql data directly.
How To Encode String
Oct 28, 2009I need to send string over by TCP/IP protocol, but i need to encode it first to Hebrew DOS-862 how do i encode String.
View 5 RepliesPercent-encode URL Twice?
Apr 11, 2012I have been given some instructions to percent encode a URL twice. I know how to percent encode a URL once but how do you do it twice? Surly when it is encoded once, it will be the same when encoded again.
View 2 RepliesC# - How To Encode Japanese Characters
Jun 28, 2011I have to develop a program. This is encoding system. I have this Japanese characters that are:
I want to convert this string to encoding like this:
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Encode Numbers In Barcode?
Apr 18, 2012make a barcode with barcode software. id is it possible to turn numbers into VB.NET applications, cause I'm a vb.net user? And how to do it?
View 7 RepliesHow To Encode Text File
Jul 12, 2010How I can encode a text file to ASMO449+?
View 1 RepliesRe-encode The Data As ASCII?
Jun 10, 2012I open the serial port and using a recieved data sub, pull data out of the input buffer.I then place the data on a textbox. Problem is, all I seem to get is "????xx??" of various different lenghts.How can I re-encode the data as ascii?
With SerialPort1
.ParityReplace = &H3B ' replace ";" when parity error occurs
.BaudRate = 9600
.Parity = IO.Ports.Parity.None
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