Rendering raw HTML constructed from any untrusted source is a security risk and should always be avoided. I tried putting together a working example (PoC) as follows: Visual Studio 2022 Solution: Created using Microsoft . The child component is rendered with one or more parameter values from the parent component. The Update method can be called from anywhere in the app. We welcome your feedback on how well this particular approach meets your requirements. By adding @attribute [CascadingTypeParameter()] to a component, the specified generic type argument is automatically used by descendants that: When receiving a cascaded type parameter, components obtain the parameter value from the closest ancestor that has a CascadingTypeParameterAttribute with a matching name. Component file paths use Pascal case and appear before showing component code examples. . Here we can use JavaScript to call a server-side function in ASP.NET. Blazor follows the convention of ASP.NET Core apps for static assets. Why does secondary surveillance radar use a different antenna design than primary radar? This article explains Razor component rendering in ASP.NET Core Blazor apps, including when to call StateHasChanged to manually trigger a component to render. NOTE: The middleware must be configured to serve razor pages as explained in the starting tutorial - (C# ASP.NET Core) Beginner's Introduction to Razor Pages Step 2 of 3: Complete the backing class . For this a public property is declared and set in the backing class. Punjab - INDIA - 140 307,EMail: SALES.HOVEN@GMAIL.COM, (C# ASP.NET Core) Getting Started with Database Connectivity. A component is a self-contained portion of user interface (UI) with processing logic to enable dynamic behavior. . EventHandlers holds attributes to configure the mappings between event names and event argument types. For more information, see the component parameters section and the ASP.NET Core Blazor data binding article. These are reserved keywords prefixed with @ that appear in Razor markup: Directives and directive attributes used in components are explained further in this article and other articles of the Blazor documentation set. WCF Dependency Injection using Castle Windsor - Please help? In JavaScript, define a function for building the custom event argument object from the source event: Register the custom event with the preceding handler in wwwroot/index.html (Blazor WebAssembly) or Pages/_Host.cshtml (Blazor Server) immediately after the Blazor