asp.net-mvc – 如何拦截视图渲染以在所有部分视图上添加HTML / JS？

public class MyRazorView : RazorView
{
    public MyRazorView(ControllerContext controllerContext,String viewPath,String layoutPath,bool runViewStartPages,IEnumerable<String> viewStartFileExtensions,IViewPageActivator viewPageActivator)
        : base(controllerContext,viewPath,layoutPath,runViewStartPages,viewStartFileExtensions,viewPageActivator)
    {

    }

    protected override void RenderView(ViewContext viewContext,TextWriter writer,object instancE)
    {
        base.RenderView(viewContext,writer,instancE);

        var view = (BuildManagerCompiledView)viewContext.View;
        var context = viewContext.httpContext;
        var path = context.Server.MapPath(view.ViewPath);
        var viewName = Path.GetFilenameWithoutExtension(path);
        var controller = viewContext.RouteData.GetrequiredString("controller");
        var js = context.Server.MapPath(
            String.Format(
                "~/ClientApp/Controllers/{0}/{0}.{1}.js",viewName,controller
            )
        );
        if (File.Exists(js))
        {
            writer.WriteLine(
                String.Format(
                    "<script type=\"text/javascript\">{0}</script>",File.ReadAllText(js)
                )
            );
        }
    }
}

以及一个自定义视图引擎,当要求部分视图时,它将返回此自定义视图：

public class MyRazorViewENGIne : RazorViewENGIne
{
    protected override IView CreatePartialView(ControllerContext controllerContext,String partialPath)
    {
        return new MyRazorView(
            controllerContext,partialPath,null,false,base.FileExtensions,base.ViewPageActivator
        );
    }
}

这将在Application_Start中注册：

protected void Application_Start()
{
    AreaRegistration.RegisterAllAreas();

    RegisterGlobalFilters(GlobalFilters.Filters);
    RegisterRoutes(RouteTable.Routes);

    ViewENGInes.ENGInes.Clear();
    ViewENGInes.ENGInes.Add(new MyRazorViewENGIne());
}

您可能需要调整一些路径,因为在您的问题中,js所在的位置不太清楚,但通常您应该在答案中有足够的详细信息.