Create and use ASP.NET Core Razor components.; 21 minutes to read; In this article. By Luke Latham, Daniel Roth, and Tobias Bartsch. View or download sample code (how to download) Blazor apps are built using components. A component is a self-contained chunk of user interface (UI), such as a page, dialog, or form. C# PDF Library to generate PDF in.NET. Create, write, edit and read PDF in.NET,.NET Core, and Framework applications. C# PDF Creator DLL for net with NuGet install support for Visual Studio. Ultimate PDF Component for.NET and Silverlight Developers. Ultimate PDF for.NET is a 100%-managed PDF document component that helps you to add PDF capabilities in your.NET applications. With a few lines of code, you can create a complex PDF document from scratch or load an existing PDF file. Spire.PDF for.NET is a professional PDF component that supports to create, write, edit, handle and read PDF files without any external dependencies within.NET application.NET PDF API - Developing PDF in C#, VB.NET, ASP.NET.
By Luke Latham and Daniel Roth
Razor components can be integrated into Razor Pages and MVC apps. When the page or view is rendered, components can be prerendered at the same time.
Archer usmle step 3 review step 3 ccs workshop. After preparing the app, use the guidance in the following sections depending on the app's requirements:
An existing Razor Pages or MVC app can integrate Razor components into pages and views:
In the app's layout file (_Layout.cshtml):
Add the following <base> tag to the <head> element:
The href value (the app base path) in the preceding example assumes that the app resides at the root URL path (/). If the app is a sub-application, follow the guidance in the App base path section of the Host and deploy ASP.NET Core Blazor article.
The _Layout.cshtml file is located in the Pages/Shared folder in a Razor Pages app or Views/Shared folder in an MVC app.
Add a <script> tag for the blazor.server.js script immediately before the closing </body> tag:
The framework adds the blazor.server.js script to the app. There's no need to manually add the script to the app.
Add an _Imports.razor file to the root folder of the project with the following content (change the last namespace, MyAppNamespace, to the namespace of the app):
In Startup.ConfigureServices, register the Blazor Server service:
In Startup.Configure, add the Blazor Hub endpoint to app.UseEndpoints:
Integrate components into any page or view. For more information, see the Render components from a page or view section.
This section pertains to adding components that are directly routable from user requests.
To support routable Razor components in Razor Pages apps:
Follow the guidance in the Prepare the app section.
Add an App.razor file to the project root with the following content:
Add a _Host.cshtml file to the Pages folder with the following content:
Components use the shared _Layout.cshtml file for their layout.
RenderMode configures whether the App component:
| Render Mode | Description |
|---|---|
| ServerPrerendered | Renders the App component into static HTML and includes a marker for a Blazor Server app. When the user-agent starts, this marker is used to bootstrap a Blazor app. |
| Server | Renders a marker for a Blazor Server app. Output from the App component isn't included. When the user-agent starts, this marker is used to bootstrap a Blazor app. |
| Static | Renders the App component into static HTML. |
For more information on the Component Tag Helper, see Component Tag Helper in ASP.NET Core.
Add a low-priority route for the _Host.cshtml page to endpoint configuration in Startup.Configure:
Add routable components to the app. For example: https://bmck.over-blog.com/2021/01/free-software-adobe-reader-download.html.
For more information on namespaces, see the Component namespaces section.
This section pertains to adding components that are directly routable from user requests.
To support routable Razor components in MVC apps:
Follow the guidance in the Prepare the app section.
Add an App.razor file to the root of the project with the following content:
Add a _Host.cshtml file to the Views/Home folder with the following content:
Components use the shared _Layout.cshtml file for their layout.
RenderMode configures whether the App component:
| Render Mode | Description |
|---|---|
| ServerPrerendered | Renders the App component into static HTML and includes a marker for a Blazor Server app. When the user-agent starts, this marker is used to bootstrap a Blazor app. |
| Server | Renders a marker for a Blazor Server app. Output from the App component isn't included. When the user-agent starts, this marker is used to bootstrap a Blazor app. |
| Static | Renders the App component into static HTML. |
For more information on the Component Tag Helper, see Component Tag Helper in ASP.NET Core. Invisible reverse black edition.
Add an action to the Home controller:
Add a low-priority route for the controller action that returns the _Host.cshtml view to the endpoint configuration in Startup.Configure:
Create a Pages folder and add routable components to the app. Live play slots. For example:
For more information on namespaces, see the Component namespaces section.
This section pertains to adding components to pages or views, where the components aren't directly routable from user requests.
To render a component from a page or view, use the Component Tag Helper.
Stateful interactive components can be added to a Razor page or view.
When the page or view renders:
The following Razor page renders a Counter component:
For more information, see Component Tag Helper in ASP.NET Core.
In the following Razor page, the Counter component is statically rendered with an initial value that's specified using a form. Since the component is statically rendered, the component isn't interactive:
For more information, see Component Tag Helper in ASP.NET Core. Weatherby orion shotgun serial numbers.
When using a custom folder to hold the app's components, add the namespace representing the folder to either the page/view or to the _ViewImports.cshtml file. In the following example:
The _ViewImports.cshtml file is located in the Pages folder of a Razor Pages app or the Views folder of an MVC app.
For more information, see Create and use ASP.NET Core Razor components.
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