ASP.NET WebAPI HttpGet操作-查询字符串后模型为null

Question

The querystring below is not being deserialized by the MVC action. The action gets hit ok, but I'm getting null value for searchModel in the action.

https://test.api.domain.com:9090/mont/contact/searchemployee?lastname=Smith

EDIT : Simplified Model

Model

public class EmployeeSearchModel
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

Action:

    [HttpGet]
    public List<Employee> SearchEmployee(EmployeeSearchModel searchModel)
    {
        List<Employee> employees = new List<Employee>();
        try
        {
            if (searchModel != null)
            {
                //some logic
            }
            else
            {
                //dirty feedback for testing - this is what the action returns
                employees.Add(new Employee { FirstName = "searchModel was null" });
            }
        }
        catch (Exception e) { WriteFileLog(_logPath, e.ToString()); }

        return employees;
    }

Answer 1

Is that ASP.NET MVC or Web API? From the fact that you return a list of employees from the controller action instead of ActionResult I can see that it's Web API. If so, you could apply [FromUri] attribute to the model:

public List<Employee> SearchEmployee([FromUri]EmployeeSearchModel searchModel)