Bug: _Course-Registration.cshtml > Cannot apply indexing with [] to an expression of type

[shakes-edge]

I'm submitting a ...
[x] bug report => 2sxc App: 9.8.0 > Courses / Events and Registrations App

...about
[x] edit experience / UI
[x] DNN parts

Current behavior

When you click Register then:
Line 12:
var course = AsDynamic(App.Data["Course"].List[Convert.ToInt32(Request.QueryString["cid"])]);

Error: System.Web.HttpCompileException (0x80004005): c:\inetpub\wwwroot\dnndev.me\Portals\0\2sxc\Courses_Course-Registration.cshtml(12): error CS0021: Cannot apply indexing with [] to an expression of type 'System.Collections.Generic.IEnumerable<ToSic.Eav.Interfaces.IEntity>' at System.Web.Compilation.AssemblyBuilder.Compile() at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound) at System.Web.Compilation.BuildManager.GetCompiledType(VirtualPath virtualPath) at ToSic.SexyContent.Engines.RazorEngine.CreateWebPageInstance() in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\2Sexy Content Razor\RazorEngine.cs:line 71 at ToSic.SexyContent.Engines.RazorEngine.InitWebpage() in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\2Sexy Content Razor\RazorEngine.cs:line 93 at ToSic.SexyContent.Engines.RazorEngine.Init() in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\2Sexy Content Razor\RazorEngine.cs:line 26 at ToSic.SexyContent.Engines.EngineBase.Init(Template template, App app, ModuleInfo hostingModule, IDataSource dataSource, InstancePurposes instancePurposes, SxcInstance sxcInstance, Log parentLog) in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\SexyContent\Engines\EngineBase.cs:line 61 at ToSic.SexyContent.SxcInstance.GetRenderingEngine(InstancePurposes renderingPurpose) in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\SexyContent\SxcInstance.cs:line 267 at ToSic.SexyContent.SxcInstance.Render() in C:\Projects\2SexyContent\Web\DesktopModules\ToSIC_SexyContent\SexyContent\SxcInstance.cs:line 179

Expected behavior

If should render a registration page and the user should able to register for the event

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Looks like a small bug that needs to be fixed.

Please tell us about your environment:

DNN PLATFORM: v. 09.01.01 (129)
.NET FRAMEWORK: 4.6
WINDOWS 10 PRO
2sxc App: 9.8.0
Courses / Events and Registrations App (selected from 2sxc App list)

• 2sxc version(s): 9.8.0
• Browser: [all | Chrome XX | Firefox XX | Edge XX | IE XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari ]
• DNN: 09.01.01 (129)
• Language: [any/all | English | German | other ]

Anything you would like to add

[iJungleboy]

thx!

[iJungleboy]

@lucatescari will fix the app, and write what lines of code must de adjusted.