空数据从Angular 5传递到Asp.NET MVC控制器

Question

When I am passing data from Angular 5 to Asp.Net MVC Controller. it is receiving null data. when content type is changed to "application/x-www-form-urlencoded" the control is passed to controller but with null data. but for json/application it will not pass control to API if it is with [Httppost] attribute.

adduser(userdata: User) {
var body = JSON.stringify(userdata);
alert(JSON.stringify(userdata));
return this.httpClient.post("http://localhost:21936/UserRegistration/Registration",body,httpOptions);
}

Data is not passed from this http call, where User is my MODEL which o created in Angular 5.

[HttpPost]
public ActionResult Registration(UserModel usermodel)
{
    using (var dbcontext = new ModelDB())
    {
        UserModel usermodelobj = new UserModel()
        {
            id = usermodel.id,
            name = usermodel.name,
            age = usermodel.age,
            department = usermodel.department,
            mobile = usermodel.mobile,
            email = usermodel.email,
            password = usermodel.password

        };
        dbcontext.userModel.Add(usermodelobj);
        dbcontext.SaveChanges();
    }
    return View();
}

This my MVC Controller

The Model class for Angular 5 and Asp.Net MVC are Same.

Answer 1

You should add [FromBody] attribute to your UserModel input

[HttpPost]
public ActionResult Registration([FromBody] UserModel usermodel)
{
    ////
}