Web API Not Returning NULL Properties in JSON

When calling a web api where there are null values, the return object drops the property. I have read many articles on-line that talk about the problem being fixed with the new release but it did not work for me. After looking around and testing a few options I found a very easy fix. The below code is a sample code from a real application.

For Each t In NewsData
       NewsItemList.Add(New NewsList(Date.ToString("MM/dd/yyyy"), t._id, t.Caption, _
                                     t.Article, t.PublishPeriod, t.isActive))
Public Class NewsList
    Public Property DatePosted As Date
    Public Property _id As Integer
    Public Property Caption As String
    Public Property Article As String
    Public Property PublishPeriod As String
     Public Property isActive As Boolean

     Public Sub New(ByVal DatePosted As Date, ByVal _id As Integer, ByVal Caption As String, _
                   ByVal Article As String, ByVal PublishPeriod As String, ByVal isActive As Boolean)

        Me.DatePosted = DatePosted
        Me._id = _id
        Me.Caption = Caption
        Me.Article = Article
        Me.PublishPeriod = PublishPeriod
        Me.isActive = isActive
    End Sub

The important part of these lines of code is adding a ‘Required()’ attribute. (Line 14)


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David Bauernschmidt

David Bauernschmidt

I live in the historical triangle of Virginia where I am married with two daughters. I have spent over 13 years working for a Fortune 500 company in the computer area. I started in VB 6.0 and by the time I ended my employment I was supervising a development team where we built many web applications. When my first daughter was born I wanted to spend more time with her so I left and became a programmer analyst for local government as well as launch my own company. Since then I have grown James River Webs into a profitable web design and application company helping small businesses create a big presence on the internet. As an employee I have created web application used by citizens and other companies. I enjoy fly fishing, and spending time with my family. I also enjoy learning new approaches and development tools when it comes to developing applications.

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