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Razor component instantiation update (#23957)

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Luke Latham 2021-11-17 09:39:25 -06:00 committed by GitHub
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1 changed files with 3 additions and 3 deletions
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aspnetcore/blazor/fundamentals/handle-errors.md
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@ -228,7 +228,7 @@ Framework and app code may trigger unhandled exceptions in any of the following
When Blazor creates an instance of a component:
* The component's constructor is invoked.
* The constructors of any non-singleton DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
* The constructors of DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
An error in an executed constructor or a setter for any `[Inject]` property results in an unhandled exception and stops the framework from instantiating the component. If constructor logic may throw exceptions, the app should trap the exceptions using a [`try-catch`](/dotnet/csharp/language-reference/keywords/try-catch) statement with error handling and logging.
@ -419,7 +419,7 @@ Framework and app code may trigger unhandled exceptions in any of the following
When Blazor creates an instance of a component:
* The component's constructor is invoked.
* The constructors of any non-singleton DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
* The constructors of DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
A Blazor Server circuit fails when any executed constructor or a setter for any `[Inject]` property throws an unhandled exception. The exception is fatal because the framework can't instantiate the component. If constructor logic may throw exceptions, the app should trap the exceptions using a [`try-catch`](/dotnet/csharp/language-reference/keywords/try-catch) statement with error handling and logging.
@ -722,7 +722,7 @@ Framework and app code may trigger unhandled exceptions in any of the following
When Blazor creates an instance of a component:
* The component's constructor is invoked.
* The constructors of any non-singleton DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
* The constructors of DI services supplied to the component's constructor via the [`@inject`](xref:mvc/views/razor#inject) directive or the [`[Inject]` attribute](xref:blazor/fundamentals/dependency-injection#request-a-service-in-a-component) are invoked.
An error in an executed constructor or a setter for any `[Inject]` property results in an unhandled exception and stops the framework from instantiating the component. If constructor logic may throw exceptions, the app should trap the exceptions using a [`try-catch`](/dotnet/csharp/language-reference/keywords/try-catch) statement with error handling and logging.