Understanding the Razor component lifecycle

A Razor component, like any other object, possesses a lifecycle. It consists of a series of synchronous and asynchronous lifecycle methods that developers can override to perform additional operations during component initialization and rendering.

Refer to Figure 10.7 for an overview of the Razor component lifecycle:

Figure 10.7: Razor component lifecycle

In Figure 10.7, it is evident that we have the ability to add hooks during both the initialization and rendering phases. The methods listed below can be overridden to capture initialization events:

• SetParametersAsync
• OnInitialized and OnInitializedAsync
• OnParametersSet and OnParametersSetAsync

SetParametersAsync and OnInitializedAsync are invoked only in the first render. OnParametersSetAsync is called every time a parameter is changed.

The following methods can be overridden to customize rendering:

• ShouldRender
• OnAfterRender...