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ASP.NET Core Runtime 3.1.32. The ASP.NET Core Runtime enables you to run existing web/server applications. On Windows, we recommend installing the Hosting Bundle, which includes the .NET Runtime and IIS support.
- What's new in ASP.NET Core 3.1
This article highlights the most significant changes in...
- Neuerungen in .NET Core 3.1
In diesem Artikel werden Neuerungen in .NET Core 3.1...
- What's new in .NET Core 3.1
This article describes what is new in .NET Core 3.1. This...
- Microsoft-Support
.NET Core 3.1 wurde mit dem neuesten Update seit dem 13....
- What's new in ASP.NET Core 3.1
- Overview
- Partial class support for Razor components
- Component Tag Helper and pass parameters to top-level components
- Support for shared queues in HTTP.sys
- Breaking changes for SameSite cookies
- Prevent default actions for events in Blazor apps
- Stop event propagation in Blazor apps
- Detailed errors during Blazor app development
This article highlights the most significant changes in ASP.NET Core 3.1 with links to relevant documentation.
Razor components are now generated as partial classes. Code for a Razor component can be written using a code-behind file defined as a partial class rather than defining all the code for the component in a single file. For more information, see Partial class support.
In Blazor with ASP.NET Core 3.0, components were rendered into pages and views using an HTML Helper (Html.RenderComponentAsync). In ASP.NET Core 3.1, render a component from a page or view with the new Component Tag Helper:
The HTML Helper remains supported in ASP.NET Core 3.1, but the Component Tag Helper is recommended.
Blazor Server apps can now pass parameters to top-level components during the initial render. Previously you could only pass parameters to a top-level component with RenderMode.Static. With this release, both RenderMode.Server and RenderMode.ServerPrerendered are supported. Any specified parameter values are serialized as JSON and included in the initial response.
For example, prerender a Counter component with an increment amount (IncrementAmount):
HTTP.sys supports creating anonymous request queues. In ASP.NET Core 3.1, we've added the ability to create or attach to an existing named HTTP.sys request queue. Creating or attaching to an existing named HTTP.sys request queue enables scenarios where the HTTP.sys controller process that owns the queue is independent of the listener process. This ...
The behavior of SameSite cookies has changed to reflect upcoming browser changes. This may affect authentication scenarios like AzureAd, OpenIdConnect, or WsFederation. For more information, see Work with SameSite cookies in ASP.NET Core.
Use the @on{EVENT}:preventDefault directive attribute to prevent the default action for an event. In the following example, the default action of displaying the key's character in the text box is prevented:
For more information, see Prevent default actions.
Use the @on{EVENT}:stopPropagation directive attribute to stop event propagation. In the following example, selecting the checkbox prevents click events from the child from propagating to the parent :
For more information, see Stop event propagation.
When a Blazor app isn't functioning properly during development, receiving detailed error information from the app assists in troubleshooting and fixing the issue. When an error occurs, Blazor apps display a gold bar at the bottom of the screen:
•During development, the gold bar directs you to the browser console, where you can see the exception.
•In production, the gold bar notifies the user that an error has occurred and recommends refreshing the browser.
For more information, see Handle errors in ASP.NET Core Blazor apps.
In diesem Artikel werden Neuerungen in .NET Core 3.1 beschrieben. Diese Version enthält kleinere Verbesserungen an .NET Core 3.0, wobei der Schwerpunkt auf kleinen, aber wichtigen Korrekturen liegt.
12. Juli 2022 · This article describes what is new in .NET Core 3.1. This release contains minor improvements to .NET Core 3.0, focusing on small, but important, fixes. The most important feature about .NET Core 3.1 is that it's a long-term support (LTS) release.
.NET Core 3.1 wurde mit dem neuesten Update seit dem 13. Juli 2021 aktualisiert. Dieses Update enthält Zuverlässigkeit und andere nicht sicherheitsbehebungen. Details zu aktualisierten Paketen finden Sie in den Versionshinweisen.
11. Juni 2024 · Free downloads for building and running .NET apps on Linux, macOS, and Windows. Runtimes, SDKs, and developer packs for .NET Framework, .NET, and ASP.NET.
3. Dez. 2019 · NET Core 3.1 is a Long Term Support (LTS) release. Here’s what’s new in this release for ASP.NET Core: Partial class support for Razor components. Pass parameters to top-level components. New component tag helper. Prevent default actions for events in Blazor apps. Stop event propagation in Blazor apps. Detailed errors during Blazor app development.
