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How do you detect navigation events in Blazor WebAssembly?

Platform: Blazor| Category : Event handling, General

The LocationChanged event handler is triggered when there is a change in the navigation location. In the example below, a JavaScript interop function is used to display an alert to the user whenever the navigation location changes:

@inject NavigationManager UriHelper
@inject IJSRuntime JSRuntime 

<p> When navigating to another page, an alert box will be displayed to indicate the navigation. </p> 

@code { 
    protected override void OnInitialized ()   
        UriHelper.LocationChanged += DetectNavigation; 

    private void DetectNavigation ( object sender, LocationChangedEventArgs e ) 
        JSRuntime.InvokeVoidAsync("alert", "Navigation event is triggered"); 

Refer to this documentation for more details. 

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