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Frameworks & web · #blazor
Architecture note on the Blazor Server circuit model: managing per-circuit state isolation, SignalR trust boundaries, operational checks, and the limits of in-memory state.
Blazor WebAssembly apps can ship too much code upfront. Lazy-loading feature assemblies with <LazyLoad> reduces initial bundle size and speeds first paint, at the cost of extra network requests.
Stop bloating your Blazor apps. Learn how to strategically mix Static SSR, Interactive Server, and WebAssembly render modes in .NET 8 to balance SEO and performance.
Blazor Server keeps component state on the server inside a per‑tab SignalR circuit. Reconnection can restore that state only while the circuit is retained. Once disposed, in‑memory state is lost unless you persisted it.
Learn how to implement a custom CircuitHandler in Blazor Server to track user connectivity, prevent memory leaks, and customize the reconnection UI for a professional user experience.
Static SSR gives lightning‑fast first paint and SEO, but no interactivity. Interactive modes let Blazor run on the server or WebAssembly, trading initial load size for real‑time UI. Learn how to assign @rendermode, what state means when you switch, and when to use each mode.
When list items move or disappear, Blazor's default position-based diffing can reuse component instances and leak local state into the wrong row. The `@key` directive fixes this by binding identity to a stable data key.
A plain @foreach over tens of thousands of rows creates one DOM element per item, freezing the page. Blazor's built-in Virtualize component renders only the visible window, but it requires a determinate scroll container and introduces accessibility trade-offs.
Build a minimal yet secure authentication architecture for a Blazor Server app, tying ASP.NET Core Identity, cookie auth, and SignalR together. The guide covers trust boundaries, operational checks, and failure handling.
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