Redirecting to Action Result Using Href Attribute

Question

I am trying to Invoke action result from an anchor tag,

I am building html into C# , its not in view and injecting it into view using html helper @Html.Raw(Model.HTML) like this.

HTML is

html.AppendLine("<td><a href='Home/DeleteFile?ID="+ dt.Rows[i]["ID"].ToString() + "'><i style='color:#e90029' class='fa fa-times fa-lg' aria-hidden='true'></i></a></td>");

The Problem is when i click first time on this anchor tag to delete the record it works by invoking address

http://WebsiteAlias/Home/DeleteFile?ID=2

But after that when i hover to another record to delete them it show URL to

http://WebsiteAlias/Home/Home/DeleteFile?ID=2

It add Another /Home in url ,

Why it is happening ?

I cant use @Url.Action("Action","Controller") cause HTML is coming from c#

You can use `Url.Action()` in the contoller to generate the correct url — , Nov 20 '17 at 08:14
If you want to use HTML helper, this post already do that: https://stackoverflow.com/questions/699782/creating-a-url-in-the-controller-net-mvc. — Tetsuya Yamamoto, Nov 20 '17 at 08:17
@TetsuyaYamamoto yes , this is what i want , but it does not work well — Tanwer, Nov 20 '17 at 08:31
@StephenMuecke , will it work if i add Url.Action() in stringBuilder ? — Tanwer, Nov 20 '17 at 08:37
Yes - `Url.Action()` outputs a string so you can use `yourStringBuilder.Append(Url.Action(....));` — , Nov 20 '17 at 08:42

Georg Patscheider · Accepted Answer · 2017-11-20T10:21:16.953

2

If the C# code that builds the HTML has access to the HttpContext, you can create an UrlHelper like this:

using System.Web;

var urlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);
string url = urlHelper.Action("DeleteFile", "Home", new { ID = dt.Rows[i]["ID"].ToString() });
return url;

Edit: if you only have access to HttpContextBase, you can get the current HttpContext like this:

HttpContextBase contextBase;
HttpContext httpContext = contextBase.ApplicationInstance.Context;

edited Nov 20 '17 at 10:21

answered Nov 20 '17 at 08:16

Georg Patscheider

9,101
1
23
34

Error : HttpContextBase' does not contain a definition for 'Current' . Which reference need to add ? – Tanwer Nov 20 '17 at 08:35
`using System.Web`; HttpContext should be available in MVC Controllers, ViewModels, Views, Global.asax, ... Maybe you have to pass it to the class that builds the HTML. – Georg Patscheider Nov 20 '17 at 08:38
See also my edit on how to get `HttpContext` from `HttpContextBase`. – Georg Patscheider Nov 20 '17 at 08:43

Redirecting to Action Result Using Href Attribute

1 Answers1