Create JavaScript code from C# method to JavaScript file

Question

I've an extension method in C# that creates a script, then puts the created script into a view. I want put the created script into a .js file then reference the .js file to the view. Is there a way to do so?

C# code:

public static HtmlString RenderScript(this IHtmlHelper htmlHelper)
{
    var builder = new StringBuilder();
    string script = string.Empty +
        "<script type=\"text/javascript\" >" +
        //do something
        " </script>";
    builder.AppendLine(script);
    return new HtmlString(builder.ToString());
}

View:

@section Scripts{
    @(Html.RenderScript())
}

Aluan Haddad · Accepted Answer · 2019-08-19 22:43:33Z

3

Yes, you can do this by placing the JavaScript in an a separate file.

public static async Task<HtmlString> RenderScriptAsync(this IHtmlHelper htmlHelper, string jsFilePath)
{
    using (var reader = new StreamReader(jsFilePath))
    {
        var js = await reader.ReadToEndAsync();
        return new HtmlString($@"<script type=""text/javascript"">{js}</script>");
    }
}

In order for this to work, you need to make the file containing the JavaScript part of your build output by choosing copy if newer from the build action section of properties window in Visual Studio.

edited Aug 19, 2019 at 22:43

answered Jul 21, 2019 at 13:58

Aluan Haddad

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1 Comment

Aluan Haddad Over a year ago

Glad I could help. Also, look into Embedded Resources if you want to inject the content of files straight into your dll

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