How to bind null value to model in c# webAPI?

Question

I am receiving a JSON from the request and able to bind to the model successfully, But when the value of any property in JSON is null, the model fails to bind. Below is my code

 public class JobDetails
        {
            [Required]
            [Range(1, int.MaxValue, ErrorMessage = "TransactionId value must be greater than zero")]
            public int Id { get; set; }        
            public string details{ get; set; }
        } 

    [HttpPost]
    [Route("create/job")]
    public async Task<IActionResult> Add([FromBody]JobDetails model)
    {
      //when i debug model is null. Expected result {Id:null,details:"some data"}
    }

input json

{Id:null,details:"some data"}

Any idea of how to make this work?

shayan kamalzadeh · Accepted Answer · 2020-09-02 14:47:11Z

1

You can use the below attribute for ignoring null checking:

 [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  public int Id { get; set; }

answered Sep 2, 2020 at 14:47

shayan kamalzadeh

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Comments

Wowo Ot · Accepted Answer · 2020-09-02 15:10:46Z

0

Try changing your integer to

public int? Id { get; set; }

which accepts null

answered Sep 2, 2020 at 15:10

Wowo Ot

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