Blazor client onclick function with parameter

Adding parameter to a function in Blazor client throws compiler error: Cannot convert from void to string, example:

<a onclick="@MyFunction">My function</a>

void MyFunction() {
    Console.WriteLine("Works");
}


<a onclick="@MyFunction(1)">My function</a>

void MyFunction(int number) {
    Console.WriteLine("Throws error");
}

[Andrzej-W]

@Madunet add @ before onclick

<button class="btn btn-primary" @onclick="@(() => test(a))">Set counter to @a</button>

[Paul-Schroeder]

I needed similar syntax for invoking a method with a parameter and here is what worked for me:

Razor: <button class="btn btn-primary" onclick="@((Action<EventArgs>) (args => RegisterClicked(args, ConferenceEvent.ConferenceEventId)))">Register</button>

Code: private void RegisterClicked(EventArgs args, Guid conferenceEventId) { System.Diagnostics.Debug.WriteLine($"Register for {conferenceEventId}"); }

Note: I’m using RC1, which includes some changes necessary as of Preview 9:

“Replace Microsoft.AspNetCore.Components.UIEventArgs with System.EventArgs and remove the “UI” prefix from all EventArgs derived”

See: https://devblogs.microsoft.com/aspnet/asp-net-core-and-blazor-updates-in-net-core-3-0-preview-9/