Using a dash (-) in ASP.MVC parameters

Question

<% using (Html.BeginForm(\"SubmitUserName\")) { %>
    
    
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Answer 1

I found this answer helpful, but I don't know exactly how the provided example helps. It appears to just "rename" a value that the binder all ready provided.

In my case, I was being posted to by an external service that would post something like "body-plain" and I could not control the name. So I modified this sample to look like this:

[AttributeUsage(AttributeTargets.Method, AllowMultiple = true)]
public class ParameterNameMapAttribute : ActionFilterAttribute
{
    public string InboundParameterName { get; set; }
    public string ActionParameterName { get; set; }

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        object value = filterContext.RequestContext.HttpContext.Request[InboundParameterName];

        if (filterContext.ActionParameters.ContainsKey(ActionParameterName))
        {
            filterContext.ActionParameters[ActionParameterName] = value;
        }
        else
        {
            throw new Exception("Parameter not found on controller: " + ActionParameterName);
        }
    }
}

This actually takes in the parameter "body-plain" for example and maps it to an ActionParameter I defined on my controller. Like so:

[ParameterNameMap(InboundParameterName = "body-plain", ActionParameterName = "bodyPlainText")]
    [ParameterNameMap(InboundParameterName = "Thread-Topic", ActionParameterName = "alternateSubject")]
    public HttpStatusCodeResult Process(string token, string timestamp, string signature, string subject, string sender, string recipient, string bodyPlainText, string alternateSubject)
    {