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Basically the same as #10131 which has been closed in in favour of #10452 which was in turn closed in favour of #10450 (influencing the <head>).
Having the ability to embed content from the page in the layout in more than one placeholder is a common need. A typical use case is to display the page name in the "header" of the application which is usually defined in the layout. Another use case is to display personalised content for the currently logged user.
A lot of other technologies support this feature and I think it would be a great addition to Blazor. A few examples:
- ASP.NET WebForms has ContentPlaceholder
- ASP.NET MVC has sections
- Web Pages also have sections
- Angular has router outlets
- React Router also supports multiple components
Thank you for your consideration!
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Work that is critical for the release, but we could probably ship withoutThis issue impacts most of the customersIncludes: Blazor, Razor ComponentsThis issue represents an ask for new feature or an enhancement to an existing oneFeatures related to the built in components we ship or could ship in the futureAny feature that affects the component model for Blazor (Parameters, Rendering, Lifecycle, etc)This label is used by an internal tool