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ASP.NET MVC: Add resources to Layout from View/Partial/HtmlHelper http://stackoverflow.com/a/8559777/2576706
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| <html> | |
| <head> | |
| //... | |
| @Html.RenderResources("css") | |
| </head> | |
| <body> | |
| //... | |
| @Html.RenderResources("js") | |
| </body> | |
| </html> |
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| public static class Helper | |
| { | |
| public static MvcHtmlString HelperMethod(this HtmlHelper<TModel> htmlHelper) | |
| { | |
| htmlHelper.Resource("<link rel='stylesheet' href='/Content/bootstrap-multiselect.css' type='text/css'/>", "css"); | |
| htmlHelper.Resource("<script type='text/javascript' src='/Scripts/bootstrap-multiselect.js'></script>", "js"); | |
| //... | |
| } | |
| } |
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| /* | |
| * modified from: http://stackoverflow.com/a/8559777/2576706 | |
| */ | |
| public static class ResourcesHtmlHelper | |
| { | |
| /* | |
| * Called by Partial or View that need to add Scripts to the _layout | |
| */ | |
| public static IHtmlString Resource(this HtmlHelper htmlHelper, Func<object, HelperResult> template, string type) | |
| { | |
| if (htmlHelper.ViewContext.HttpContext.Items[type] == null) | |
| htmlHelper.ViewContext.HttpContext.Items[type] = new List<Func<object, HelperResult>>(); | |
| ((List<Func<object, HelperResult>>)htmlHelper.ViewContext.HttpContext.Items[type]).Add(template); | |
| return new HtmlString(String.Empty); | |
| } | |
| /* | |
| * Called by Helper or view that need to add Scripts to the _layout | |
| */ | |
| public static MvcHtmlString Resource(this HtmlHelper htmlHelper, string template, string type) | |
| { | |
| Func<object, HelperResult> func = delegate(object o) | |
| { | |
| return new HelperResult | |
| ( | |
| writer => | |
| { | |
| writer.Write(template); | |
| } | |
| ); | |
| }; | |
| Resource(htmlHelper, func, type); | |
| return MvcHtmlString.Empty; | |
| } | |
| /* | |
| * Called by the Layout to render scripts from partial/view/htmlHelper, .... | |
| */ | |
| public static IHtmlString RenderResources(this HtmlHelper htmlHelper, string type) | |
| { | |
| if (htmlHelper.ViewContext.HttpContext.Items[type] != null) | |
| { | |
| List<Func<object, HelperResult>> resources = (List<Func<object, HelperResult>>)htmlHelper.ViewContext.HttpContext.Items[type]; | |
| foreach (var resource in resources) | |
| { | |
| if (resource != null) htmlHelper.ViewContext.Writer.Write(resource(null) + Environment.NewLine); | |
| } | |
| } | |
| return new HtmlString(String.Empty); | |
| } |
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| //... | |
| @Html.Resource(@<script src="@Url.Content("~/Scripts/jquery-1.4.4.min.js")" type="text/javascript"></script>, "js")` | |
| @Html.Resource(@<link rel="stylesheet" href="@Url.Content("~/CSS/style.css")" />, "css")` | |
| //... |
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what does this
htmlHelper.Resource("", "css");
htmlHelper.Resource("<script type='text/javascript' src='/Scripts/bootstrap-multiselect.js'></script>", "js");
do ?