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POPutAsJsonAsync does not work when dto has data annotations
 

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  1. POPutAsJsonAsync does not work when dto has data annotations
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    <p>I'm seeing some strange behavior with HttpClient and Web API with my DTOs. When I have data annotations in place for my properties, HttpClient.PutAsJsonAsync() does not work. I can't receive anything at the Web API end. Some code to explain:</p> <p>My MVC 4 web page calls the Web API with this code:</p> <pre><code>using (var client = new HttpClient()) { var response = client.PutAsJsonAsync(uri+"/"+MyObject.Id, MyObject).Result; response.EnsureSuccessStatusCode(); // Returns 500 when i use MyObject with annotations } </code></pre> <p>Web API controller code to receive. Note that this is not even trigged when MyObject has annotations:</p> <pre><code>public MyObject Put(MyObject myObject) { try { if (myObject == null) throw new NullReferenceException(); } catch (Exception e) { throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.BadRequest)); } } </code></pre> <p>MyObject DTO when it works:</p> <pre><code>public class MyObject { public int Id { get; set; } public Nullable&lt;int&gt; AuditProgramId { get; set; } public string Title { get; set; } public System.DateTime StartDate { get; set; } public System.DateTime EndDate { get; set; } } </code></pre> <p>MyObject DTO when it doesn't work:</p> <pre><code>public class MyObject { public int Id { get; set; } public Nullable&lt;int&gt; AuditProgramId { get; set; } [Required] public string Title { get; set; } [Required, DataType(DataType.Date)] public System.DateTime StartDate { get; set; } [Required, DataType(DataType.Date)] public System.DateTime EndDate { get; set; } } </code></pre> <p>Any ideas?</p> <p><strong>UPDATE 1</strong></p> <p>It works with these values without annotations, but fails with annotations:</p> <pre><code>var myObj = new MyObject { Id=4, Title="Test Title", StartDate=DateTime.Today, EndDate=DateTime.Today.AddDays(2) }; </code></pre>
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    1. USgixen
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      1. USaamir sajjad
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    1. COCould you include a sample of an object that fails? `new MyObject { ... }`
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      1. POPutAsJsonAsync does not work when dto has data annotations
      1. USMarkus Jarderot
 

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