Question

I have taken over a project that has a lot of code that is concatenating strings to put together a url. I keep struggling to remember if each of these APIs return the “/” at the end of the base Url (either “http://www.mysite.com” or “http://www.mysite.com/”)

For example:

var baseUrl = "http://www.mySite.com/";
var controllerAndAction = "/Mycontroller/MyAction";

var fullUrl = baseUrl + controllerAndAction;

or

var baseUrl = string.Format("{0}://{1}{2}", Request.Url.Scheme, Request.Url.Authority, Url.Content("~"));
var controllerAndAction = "Mycontroller/MyAction";

var fullUrl = baseUrl + controllerAndAction;

or

var baseUrl = Request.Url.GetLeftPart(UriPartial.Authority);
var controllerAndAction = "Mycontroller/MyAction";

var fullUrl = baseUrl + controllerAndAction;

or

var baseUrl = "http://www.mySite.com";
var controllerAndAction = "/Mycontroller/MyAction";

var fullUrl = baseUrl + controllerAndAction;

(Notice the “/”s at the end of baseUrl and at the beginning of controllerAndAction)

I am trying to figure out the cleanest way to make sure these create proper Urls that include a single “/” (not 2 or 0)

is there anything i can do to help confirm this (besides manually testing each one . .) ?

NOTE:

i need this code to work in an asp.net-mvc and a winforms project so i am trying to avoid code that is coupled to either one (to avoid referencing unnecessary libraries)

Answer 1

That isn’t fun. Check out Path.Combine for Urls. This method should allow you to combine base urls, paths and query strings.

Note: The link suggests using a URI which is a base system class, available in any type of C#/VB project.