Protocol webexception error comes when using required attribute on property in ASP.NET web api

Question

0.00/5 (No votes)

See more:

C#

I have created ASP.NET Web API and calling the post method using json from client side and it's working fine :

C#

public class ValueController : ApiController
{
    public void Post([FromBody]model value)
    {

    }
}

public class model
{
    public decimal value { get; set; }
}

C#

string JSONString = "{\"value\":\"999.99\"}";

C#

but when I use the [Required] attribute in the value property,

C#

public class model
{
    [Required]
    public decimal value { get; set; }
}

start giving protocol Error

What I have tried:

Tried to change the format of JSON string
like:
string JSONString = "{\"value\":999.99}";

but did not work it...

Posted 1-Jul-16 0:56am

Rajat_SE

Updated 5-Jul-16 0:17am

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rajat_SE · Accepted Answer · 2016-07-05T00:17:00

C#

Since decimal is a Value type and if we use the Required attribute to a value type, it will cause an error.. it will always have a value (the default of 0) if the incoming request does not provide the value.

Now I am using [DataMember(isRequired=true)] instead of [Required] attribute