Missing DisplayAsync Razor Helper Extension

[mrpavlitzky]

Hi Community,

I came across a following issue:

I want to use the Orchard.DisplayAsync() method, but I get the following error:

CS1929 'IOrchardHelper' does not contain a definition for 'DisplayAsync' and the best extension method overload 'OrchardRazorHelperExtensions.DisplayAsync(IOrchardDisplayHelper, ContentItem, string, string, IUpdateModel)' requires a receiver of type 'IOrchardDisplayHelper'

The argument is of type ContentItem and the Helper is injected via @inject OrchardCore.IOrchardHelper Orchard.

Any way around this?

[jtkech]

Our custom RazorPage already has a IOrchardDisplayHelper Orchard property that you can use directly, nothing to inject.

For this you need a _ViewImports including

@inherits OrchardCore.DisplayManagement.Razor.RazorPage<TModel>

[mrpavlitzky]

I did what you suggested, now I'm sitting on a bunch of errors:

[hishamco]

Check your SDK, also check if Razor is support for views.

Don't forgot to reference the required project references

[jtkech]

@Cinnam00n

Based on your errors it's about Razor @pages (under the Pages folder) not razor views (under the Views folder)

So in your _ViewImports if under the Pages folder, in place of

@inherits OrchardCore.DisplayManagement.Razor.RazorPage<TModel>

Use this instead

@inherits OrchardCore.DisplayManagement.RazorPages.Page

[mrpavlitzky]

@jtkech

When I switch to the second code snippet you provided I get the error about @RenderBody() and @ViewData[] not existing in current context which is pretty confusing as I see that your custom Razor Page inherits from the base Mvc.RazorPages.Page so it should have those methods availalable.

The error about hiding inherited members still persist:

'Pages_BlogPost.Orchard' hides inherited member 'Page.Orchard'. Use the new keyword if hiding was intended. OrchardCore.Cms.Web (net6.0)

[jtkech]

@RenderBody() is part of the mvc Razor.RazorPage but not part of the mvc RazorPages.Page.

Note: In the context of Orchard using the theming engine, we don't use @RenderBody() but @await RenderBodyAsync(), normally in a Layout.cshtml under the /Views folder of the selected theme.

See the OC.Demo module in the source code, there are example of @pages under the module /Pages folder. In a given page just tried to use @ViewData, it was suggested by intellisense.

hides inherited member 'Page.Orchard'

Looks like you are still injecting @inject OrchardCore.IOrchardHelper Orchard

[mrpavlitzky]

Note: In the context of Orchard using the theming engine, we don't use @RenderBody() but @await RenderBodyAsync(), normally in a Layout.cshtml under the /Views folder of the selected theme.

I'm working in a decoupled architecture with only Pages for now (no theming engine).

See the OC.Demo module in the source code, there are example of @pages under the module /Pages folder. In a given page just tried to use @ViewData, it was suggested by intellisense.

I've studied it carefully and I can see it working, but in my case adding @inherits OrchardCore.DisplayManagement.RazorPages.Page breaks the ViewData' and RenderBody()` functions. Without the inherit statement, the functions are referenced correctly.

Looks like you are still injecting @inject OrchardCore.IOrchardHelper Orchard

I cleared all other Orchard namespace references and the error disappeared.

[mrpavlitzky]

Also, ViewData[] is available in any of the .cshtml files. It's missing only from the _Layout

[mrpavlitzky]

Okay, I'm getting somewhere. It seems that we could reformulate the original question with:

Is it possible to render shapes in a decoupled architecture (without Views and Templates)?

Why?

I originally started with decoupled site, because of the lowest learning curve. The project I work on is not massively complicated (basically a blog with some a-little-more-complex-than-usual tagging system, comments and possibility of creating a list of liked posts stored in LocalStorage/Cookies). But now there's Disqus module I want to implement, which apparently is to be rendered as a shape.

So the actual question is:

Is there a way to render the Disqus Part without using shapes system?

[ns8482e]

May be you need to have different discussion questions with more detail on what you are really trying achieve.

short answer to your question is

Is there a way to render the Disqus Part without using shapes system?

No, ContentPart shapes and drivers are part of shape system

However you can control which shape you want to render using DisplayAsync