After the server connection has been established.
For example, suppose you have a GridView control that displays a company record in each row, and it displays a list of the company officers in a ListBox control. Where JSRuntime.InvokeAsync is called, ElementRef is only used in OnAfterRenderAsync and not in any earlier lifecycle method because there's no JavaScript element until after the component is rendered.
If the request is a postback, control event handlers are called. Some parts of the life cycle occur only when a page is processed as a postback. For the preceding example code, provide a setElementText JavaScript function inside the
After that, the Validate method of all validator controls is called, which sets the IsValid property of individual validator controls and of the page.
By default, these windows are created with a script connection Raised at the end of the page's initialization stage. The component shows that it's possible to trigger a rendering update from inside OnAfterRenderAsync. Raised after the Page object has created all controls that are required in order to render the page, including child controls of composite controls.
the onLaunch() event is fired. when your application is launched in any way: An event page may create one or more windows at its discretion. If the request is a postback, the values of the controls have not yet been restored from view state. The firstRender parameter for OnAfterRenderAsync and OnAfterRender: Asynchronous work immediately after rendering must occur during the OnAfterRenderAsync lifecycle event. the onInstalled event is fired.
For more information, see Data Binding Events for Data-Bound Controls later in this topic. with none of its own UI and is responsible Note that when an event handler is created using the Page_event syntax, the base implementation is implicitly called and therefore you do not need to call it in your method.
This event is only called after the app is fully rendered and the client connection is established. It's different from the other lifecycle methods, which schedule a further render cycle once the returned task completes. To avoid the double-rendering scenario in a Blazor Server app: The following code demonstrates an updated WeatherForecastService in a template-based Blazor Server app that avoids the double rendering: For more information on the RenderMode, see ASP.NET Core Blazor hosting model configuration.
Any complex-typed parameters. The code doesn't create an infinite loop because StateHasChanged is only called when infoFromJs is null.
There are more events than those listed; however, they are not used for most page-processing scenarios. you need to handle the
that has locally edited, unsynchronized data. If the current request is a postback, the postback data has not yet been loaded and control property values have not been restored to the values from view state. These include initialization, instantiating controls, restoring and maintaining state, running event handler code, and rendering.
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