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If I have a page with:
<body>
@section SomeStuff {
<span>This is a section I just addered</span>
}
</body>
Is it possible for the layout to not render this section, or is that contrary to how this should work conceptually. Seems like it would be useful to be able to not render certain sections on a page (unless I'm thinking about this incorrectly).
Edit:
Including the error message may be helpful, when I put a section into the main page, the layout page fails with: The following sections have been defined but have not been rendered for the layout page "/Views/Layouts/_Layout1.cshtml": "SomeStuff". As if it's forcing me to render every section on the page or something.
In otherwords, in Layout.cshtml, I don't call @RenderSection, but in Index.html I have a section called SomeStuff defined. Is that legal? Seems like it's forcing me to render all sections in the page, but that seems like sections should be optional, no?
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The _ViewImports. cshtml file for an ASP.NET Core MVC app is typically placed in the Pages (or Views) folder. A _ViewImports. cshtml file can be placed within any folder, in which case it will only be applied to pages or views within that folder and its subfolders.
The _ViewStart. cshtml page is a special view page containing the statement declaration to include the Layout page. Instead of declaring the Layout page in every view page, we can use the _ViewStart page. When a View Page Start is running, the “_ViewStart. cshtml” page will assign the Layout page for it.
cshtml file, which affects all content pages in the folder in which it is placed, and all subfolders. By default, the layout file is placed in the Pages/Shared folder, but it can be placed anywhere in the application folder structure.
Partial pages are cshtml files that do not take part in routing. Therefore you can use any of the Razor templates to generate a partial page, except the Razor Page template that results in a PageModel file being created. Rendering Partial Pages link Partial pages are included in the calling page in a number of ways.
The contents of the Razor page are rendered where @RenderBody () is called. For more information, see layout page. The layout is in the Pages/Shared folder. Pages look for other views (layouts, templates, partials) hierarchically, starting in the same folder as the current page.
Layouts in Razor serve the same purpose as Master Pages do in Web Forms. They allow you to specify a layout for your site and carve out some placeholder sections for your views to implement. For example, here’s a simple layout with a main body section and a footer section. In order to use this layout, your view might look like.
Right-click Shared Folder, go to Add, then chose Razor Component. In this situation, I want to ensure no sidebar navigation menu exists on the login page, so I will give the component a meaningful name like EmptyLayout, file extension is .razor.
you can specify if a section is required.
@RenderSection("SomeStuff", required: false)
if you don't render it out in a view, it shouldn't error then, noted here
http://weblogs.asp.net/scottgu/archive/2010/12/30/asp-net-mvc-3-layouts-and-sections-with-razor.aspx
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