How to close popup in PopupViewModel

[JaehwanMango]

Docs = popup

// Code Behind
void OnYesButtonClicked(object? sender, EventArgs e) => Close(true);
void OnNoButtonClicked(object? sender, EventArgs e) => Close(false);

toolkit:Popup have function the close
I can't close in PopupViewModel

[pictos]

@JaehwanMango we don't provide a Command for that, if you want to do it on your VM, you can use our EventToCommandBehavior

[JaehwanMango]

Hi, @pictos
Thank you for reply

Popup.Close() is not event
how to use behavior?

[pictos]

You're right, sorry.

So there're a couple of ways of doing that...

1. You can use MessaingCenter or any other event-based pattern;
2. You can create on your VM a Command<IPopup> and call the OnClosed method;
3. You can use the code-behind, this doesn't break the pattern, since controlling the visual state of the View isn't a VM responsibility (but you can disagree with this one if you wish);
4. You can use triggers.

Here's an idea behind option 2.

<mct:Popup
	x:Name="this">
	<Frame
		BackgroundColor="Red"
		HeightRequest="50"
		WidthRequest="50">
		<Frame.GestureRecognizers>
			<TapGestureRecognizer Command="{Binding CloseCommand}" CommandParameter="{Binding Source={x:Reference this}}" />
		</Frame.GestureRecognizers>
	</Frame>
</mct:Popup>

class VM
{
	public Command<IPopup> CloseCommand { get; }


	public VM()
	{
		CloseCommand = new Command<IPopup>(CloseCommandExecute);
	}

	void CloseCommandExecute(IPopup popup)
	{
		popup.OnClosed();
	}

}

[CliffAgius]

Closed as answered