ASP.NET MVC hash sign ignored in parameter

Question

I have a very simple list of programming languages stored in a database, such as, C#, Java, F# etc. and these are listed in a razor view. To see the detail of it when then url like ...\language\java works but for ...\language\C# and ...\language\C# did not work.

The hash sign (#) is ignored and in Action the id parameter is "C" instead of "C#" and "F" instead of "F#".

Here is the code

@foreach (var item in Model.Languages)
{
    <li>
        <a href="/Language/@item.Title">@item.Title</a>
    </li>
}

When click on the link then it will call Detail Action in Language controller with parameter such as java, C# etc. But in action method I get id="C" instead if "C#"

Can you please help me how to handle this scenario.

how are you displaying the URL? From the model to direct HREF? or are you using @Html.ActionLink or Url.Action ? — Ali
– Ali, Commented Dec 11, 2017 at 2:46
The # is a fragment identifier and the browser does not send anything in a url after the # symbol (consider using ../language/CSharp instead) — user3559349
– user3559349, Commented Dec 11, 2017 at 2:50
To see the detail of it when then url like ...\language\java works but for ...\language\C# and ...\language\C# did not work. Please show us that code. — mjwills
– mjwills, Commented Dec 11, 2017 at 2:53

mjwills · Accepted Answer · 2017-12-11 02:52:36Z

1

You need to url encode some chaacters (such as #), you need to pass %23 for #

Check here all encodings https://www.w3schools.com/tags/ref_urlencode.asp

edited Dec 11, 2017 at 2:52

mjwills

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answered Dec 11, 2017 at 2:46

programtreasures

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Comments

Evan Huang · Accepted Answer · 2017-12-12 06:13:32Z

1

Use HtmlHelper or UrlHelper to generate action urls, they will help to encode the characters when needed

@foreach (var item in Model.Languages)
{
    <li>
        @Html.ActionLink(item, "Detail", "Language", new { id = item }, null)
    </li>
}

edited Dec 12, 2017 at 6:13

answered Dec 11, 2017 at 3:11

Evan Huang

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3 Comments

user3559349 Over a year ago

That will not work! Anything after the # is not sent to the server

Evan Huang Over a year ago

@StephenMuecke The # will be encoded into %23 in the query string, e.g. language?name=C%23 If there are other parameters, the query string will be like language?name=C%23&p1=111&p2=222...

user3559349 Over a year ago

Yes, but OP is generating ../language/C# in the address bar. You cannot assume that a user will only ever navigate by clicking a link

Dakota · Accepted Answer · 2017-12-11 02:51:07Z

0

It doesn't sent to server . Use CSharp or FSharp instead of C# or F#

answered Dec 11, 2017 at 2:51

Dakota

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