Asp.net webapi enum parameter with default value

Question

I have a controller

   [HttpGet]
    [RoutePrefix(\"api/products/{productId}\")] 
    public HttpResponseMessage Products(int productId,TypeEnum ptype=TypeEnum.C         


        

Answer 1

You have to do with string and use TryParse() to convert string to Enum value.

public HttpResponseMessage Products(int productId,string ptype="Clothes")
{
    TypeEnum category = TypeEnum.Clothes;
    if(!Enum.TryParse(ptype, true, out category))
      //throw bad request exception if you want. but it is fine to pass-through as default Cloathes value.
    else
      //continue processing
}

It may look naive but the benefit of this approach is to allow ptype parameter to whatever string and to perform process without exception when ptype fails to bind the value.