It's equivalent event emit angular/vue in blazor?

Question

Is it equivalent of event emit like the underneath in blazor ? : https://angular.io/api/core/EventEmitter (in angular) https://v2.vuejs.org/v2/guide/components-custom-events.html (in vue)

in new blazor syntax @ event name in < > of component (3.0 preview 6)

Ta question est incompréhensible et ne respecte pas How to Ask : profite que je parle français, explique moi rapidement ton souci que je t'aide ! — user4676340
– user4676340, Commented Jun 19, 2019 at 13:40
Désolé c'est mon premier message je ne savais pas trop dans quel rubrique le poster — Stéphane B.
– Stéphane B., Commented Jun 19, 2019 at 14:09
Existe il un equivalent de la fonction event emit (qui est dans angular et vue) pour blazor — Stéphane B.
– Stéphane B., Commented Jun 19, 2019 at 14:09
si il y en a un je pense que il faudrait taper @ quelque chose dans la baliste < > merci — Stéphane B.
– Stéphane B., Commented Jun 19, 2019 at 14:10

Stéphane B. · Accepted Answer · 2019-06-24 17:03:51Z

This work :

Index.razor

<SurveyPrompt Title="How is Blazor working for you?" Counter="@Counter" CounterChanged="@CounterChangedFiredEvent" />

<p>Counter: @Counter</p>

@code {
    private int Counter = 1;

    void CounterChangedFiredEvent(int counter)
    {
        Counter = counter;
        StateHasChanged();
    }
}

SuveyPrompt.razor

<input type="button" value="Previuos" @onclick="@Previous" />
<input type="button" value="Next" @onclick="@Next" />

@code {
    // Demonstrates how a parent component can supply parameters
    [Parameter] string Title { get; set; }

    [Parameter]
    private int Counter { get; set; }

    [Parameter]
    Action<int> CounterChanged { get; set; }

    void Next()
    {
        CounterChanged(++Counter);
    }

    void Previous()
    {
        CounterChanged(--Counter);
    }
}

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