How to create vb.net object class from json file (or xml file)

Solution 1:

Since you're talking about XML and JSON files, I recommend you to install Web Tools 2012.2.

This adds a nice new feature to Visual Studio:

Paste JSON as a .NET class. Using this Special Paste command to paste JSON into a C# or VB.NET code file, and Visual Studio will automatically generate .NET classes inferred from the JSON.

If you have e.g.

{"nid":"3798","vid":"3788","type":"contact","language":"fr","title":"G","uid":"1","status":"1","created":"1374598689","changed":"1374598689","comment":"1","promote":"0","sticky":"0","tnid":"0","translate":"0"}

in your clipboard, it will generate this class for you:

Public Class Rootobject
    Public Property nid As String
    Public Property vid As String
    Public Property type As String
    Public Property language As String
    Public Property title As String
    Public Property uid As String
    Public Property status As String
    Public Property created As String
    Public Property changed As String
    Public Property comment As String
    Public Property promote As String
    Public Property sticky As String
    Public Property tnid As String
    Public Property translate As String
End Class

Solution 2:

You can convert json to csharp using (http://json2csharp.com/) and then convert csharp code to vb.net using http://www.developerfusion.com/tools/convert/csharp-to-vb/. For deserialization you can use Newtonsoft.Json. Your deserialization code will be :

JsonConvert.DeserializeObject(Of YourClass)(<JSON String>)