Add link in the model

Question

I am using MVC 3, i am passing some url in the string type property, for this i have used

var uri = new UrlHelper().Action("ActionName", "ControllerName");

But it is giving error. which is

{"Value cannot be null.\r\nParameter name: routeCollection"}

i know .Action(actionName, controllerName, routeValues, scheme); has four parameters but i only want to pass two, what will be the default value for it??

I have also tried this but still it is giving error "{"Value cannot be null.\r\nParameter name: routeCollection"}" var uri = new UrlHelper().Action("Actionname", "ControllerName", new RouteValueDictionary(new { Id = 4})); — Syed Uzair Uddin, Mar 11 '16 at 08:07

Thiago Ferreira · Answer 1 · 2016-03-11T12:07:28.283

3

If you're inside your Controller, you use the static Url.Action()instead, and it will work:

var uri = Url.Action("ActionName", "ControllerName");

And if you're outside of a Controller(e.g in your Model) you have to use the UrlHelper as you did, but passing a Context in parameter, so the method can make the correct url for you.

You can get the request context in this way:

HttpContext.Current.Request.RequestContext

So, if you can use it like this:

UrlHelper url = new UrlHelper(HttpContext.Current.Request.RequestContext);
var uri = url.Action("ActionName", "ControllerName");

edited Mar 11 '16 at 12:07

answered Mar 10 '16 at 16:56

Thiago Ferreira

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I know about it. But this time I'm using it in a model to make a string. That's why I am using it in this way... – Syed Uzair Uddin Mar 11 '16 at 07:06

score 0 · Accepted Answer · edited Jun 20 '20 at 09:12

0

i searched it and found the answer. Same Question

var uri = new UrlHelper(HttpContext.Current.Request.RequestContext).Action("ActionName", "ControllerName");

It is working fine after adding HttpContext.Current.Request.RequestContext.

edited Jun 20 '20 at 09:12

Community

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answered Mar 11 '16 at 09:42

Syed Uzair Uddin

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Add link in the model

2 Answers2