JavaScript into StringBuilder

Question

I have a function in c # where I use StringBuilder and added JavaScript code, this is my helper:

public static string RegisterJS(this System.Web.Mvc.HtmlHelper helper, string scriptLib)
{
    StringBuilder JavaScript = new StringBuilder();
    JavaScript.AppendFormat(@"<script type= ""text/javascript"">{0}", Environment.NewLine);
    JavaScript.AppendFormat(@"var toolbar = new toolBarObject('toolbarObj');{0}", Environment.NewLine);
    JavaScript.AppendFormat(@"toolbar.disableElements('" + scriptLib + "', true);{0}", Environment.NewLine);

... ... JavaScript.AppendFormat(@"{0}", Environment.NewLine);
return JavaScript.ToString(); }

This function is called to load an application in Asp.Net MVC4 within a section:

as follows:

@section ToolBar{
  <h2>aqui debo cargar mi javascript</h2>
   @Html.RegisterJS("Personal")
}

I run the program and display the page code i have this:

&lt;script type= &quot;text/javascript&quot;&gt;

and I should have this:

<script type= "text/javascript">

this happens in all lines of the function

how I can solve this problem

Travis J · Accepted Answer · 2012-11-27 23:44:11Z

1

I would suggest wrapping this in Html.Raw

@section ToolBar
{
 <h2>aqui debo cargar mi javascript</h2>
 @Html.Raw(Html.RegisterJS("Personal"))
}

answered Nov 27, 2012 at 23:44

Travis J

82.5k43 gold badges213 silver badges280 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Travis J Over a year ago

@Lostdreamer - Html.Raw is handy :)

Yan Brunet Over a year ago

Yeah, you could also have the function to return HtmlString instead, razor wouldn't encode it this way.

Travis J Over a year ago

@Lostdreamer - That is another valid approach, Raw simply returns an HtmlString instance. There are also ways of injecting the whole razor statement as well from a helper.

bhamlin · Accepted Answer · 2012-11-27 23:44:19Z

1

The @ symbol in razor syntax does HTML-encoding of the result.

You can prevent this by returning an IHtmlString from your method, which essentially communicates to the @ symbol that your text does not need to be encoded.

The easiest way to do this would be to replace your last line with:

return MvcHtmlString.Create(JavaScript.ToString());

Be careful of what you pass in, however!

answered Nov 27, 2012 at 23:44

bhamlin

5,1971 gold badge24 silver badges17 bronze badges

Collectives™ on Stack Overflow

JavaScript into StringBuilder

2 Answers 2

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related