Posting array of integers to asp.net web api

Question

I have a class like below for posting to asp.net web api

public class PostData
{

    public int ID { get; set; }

    public int[] SelectedChoiceIDs { get; set; }

}

In my ApiController there is a method called send which gets PostData object as parameter.

public bool Send(PostData data)
{


}

The problem is whenever I trace the method Web API is not binding to the array of integers ,that is, SelectedChoiceIDs property. How can i force to bind the array of integers to "SelectedChoiceIDs" property?

The data i'm sending is like

{ "ID" : 3 , "SelectedChoiceIDs" : [ 3,4,5,6 ] }

Filip W · Accepted Answer · 2013-01-11 19:37:56Z

9

You don't need to do anything, this will work out of the box.

If you POST the exact object you provided:

{ "ID" : 3 , "SelectedChoiceIDs" : [ 3,4,5,6 ] }

with Content-Type: application/json, the default model binder will automatically pick it up.

public class PostData
{

    public int ID { get; set; }

    public int[] SelectedChoiceIDs { get; set; }

}

public void DummyController : ApiController
{
    public void Post(PostData data)
    {
        //data here will be PostData with ID and an array of 4 integers
    }
}

Make sure you provide the Content-Type, and that you are indeed posting correct JSON, not for example:

{data: { "ID" : 3 , "SelectedChoiceIDs" : [ 3,4,5,6 ] } }

answered Jan 11, 2013 at 19:37

Filip W

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Community · Accepted Answer · 2017-05-23 11:58:36Z

-3

Possible dupplicate of ASP.NET MVC bind array in model

Here is blogpost explaining what you have to do.

edited May 23, 2017 at 11:58

CommunityBot

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answered Jan 11, 2013 at 19:01

semao

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2 Comments

Filip W Over a year ago

that's MVC answer, and the issue here is Web API

semao Over a year ago

There is ApiController in the question. Also it is tagged with "asp.net-mvc".

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