Call UrlHelper in models in ASP.NET MVC
I like Omar's answer but that's not working for me. Just for the record this is the solution I'm using now:
var httpContext = HttpContext.Current;
if (httpContext == null) {
var request = new HttpRequest("/", "http://example.com", "");
var response = new HttpResponse(new StringWriter());
httpContext = new HttpContext(request, response);
}
var httpContextBase = new HttpContextWrapper(httpContext);
var routeData = new RouteData();
var requestContext = new RequestContext(httpContextBase, routeData);
return new UrlHelper(requestContext);
Helpful tip, in any ASP.NET application, you can get a reference of the current HttpContext
HttpContext.Current
which is derived from System.Web. Therefore, the following will work anywhere in an ASP.NET MVC application:
UrlHelper url = new UrlHelper(HttpContext.Current.Request.RequestContext);
url.Action("ContactUs"); // Will output the proper link according to routing info
Example:
public class MyModel
{
public int ID { get; private set; }
public string Link
{
get
{
UrlHelper url = new UrlHelper(HttpContext.Current.Request.RequestContext);
return url.Action("ViewAction", "MyModelController", new { id = this.ID });
}
}
public MyModel(int id)
{
this.ID = id;
}
}
Calling the Link
property on a created MyModel object will return the valid Url to view the Model based on the routing in Global.asax