WCF将不接受具有datetime属性的对象（400错误的请求）

Question

This is my first post on SO, so please forgive me if I don't provide enough information. I have a WPF app that is trying to send an EmployeeLogin object that contains a DateTime property to my WCF web service and I keep getting a 400 bad request error when calling this EmployeeLogIn() method. I have searched so many places for an answer, but I can't get a direct answer to my specific situation.

So my main question is: Does sending an object with a DateTime property that has been set via the method below automatically get converted to the JSON format ( \\/Date(1237951967000)\\/ ) and get accepted by the wcf service as a valid DateTime property, or does it convert it to the above JSON string and get passed to the method as a string?

EDITv2: My WPF app is not sending this DateTime object in the above correct format and instead sending it as "2017-08-11T13:47:55.2187627-04:00" and I can't figure out a way to get it into the correct DateTime format. I can get it into this format as a string, but for the reasons stated at the end of this post, that would be a last-ditch effort.

 EmployeeLogin EmpLogin = new EmployeeLogin { EmployeeID = (int)UserName, Password = Pass, Latitude = 33.45, Longitude = 134.44, TimeIn = DateTime.Now }; HttpResponseMessage response = await Client.PostAsJsonAsync(string.Format(@"{0}{1}", URL, method), EmpLogin); 

Where EmployeeLogin is defined below:

 [DataContract] public class EmployeeLogin { [DataMember] public int EmployeeID { get; set; } [DataMember] public string Password { get; set; } [DataMember] public DateTime TimeIn { get; set; } [DataMember] public Nullable<double> Latitude { get; set; } [DataMember] public Nullable<double> Longitude { get; set; } } 

and the EmployeeLogIn method signature is as follows:

 [WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedResponse)] [return: MessageParameter(Name = "Data")] [OperationContract] List<int> EmployeeLogIn(EmployeeLogin e); 

I know the easiest solution is to change the DateTime to a string property and convert it back to a DateTime on the web service side, but I'm trying not to make any changes to the web service unless absolutely necessary. Thank you in advance.

Answer 1

Ok I finally found the answer to this question after weeks of searching. The problem I was experiencing is explained fully in the post linked to below, and the solution to the problem that is offered in the post worked perfectly for me. Here is the post with the solution to my problem.