serioslyserios
New Member
I have a controller and method that adds user to a DB. I call it from Fiddler with a Request Header as follows - \[quote\] Content-Type: application/xml Accept: application/xml Host: localhost:62236 Content-Length: 39\[/quote\]And a request body of - \[code\]<User> <Firstname>John</Firstname> <Lastname>Doe</Lastname></User>\[/code\]This works as expected, the method is called, the user object processed in the method PostUser.\[code\] public class UserController : ApiController { public HttpResponseMessage PostUser(User user) { // Add user to DB var response = new HttpResponseMessage(HttpStatusCode.Created); var relativePath = "/api/user/" + user.UserID; response.Headers.Location = new Uri(Request.RequestUri, relativePath); return response; } }\[/code\]I am performing my Model Validation in it's own class \[code\]public class ModelValidationFilterAttribute : ActionFilterAttribute{ public override void OnActionExecuting(HttpActionContext actionContext) { if (actionContext.ModelState.IsValid == false) { // Return the validation errors in the response body. var errors = new Dictionary<string, IEnumerable<string>>(); foreach (KeyValuePair<string, ModelState> keyValue in actionContext.ModelState) { errors[keyValue.Key] = keyValue.Value.Errors.Select(e => e.ErrorMessage); } actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.BadRequest, errors); } }}\[/code\]BUT if I post the following \[code\]<User> <Firstname></Firstname> **//MISSING FIRST NAME** <Lastname>Doe</Lastname></User>\[/code\]The Model is invalid, and a JSON response is returned even though I stated Accept: application/xml.If I perform model validation within the UserController, I get a proper XML response, but when I perform it in ModelValidationFilterAttribute I get JSON.