Accessing the controls on the view from the viewmodel

[chasihle]

Hi, I'd like to access controls on view from the view's view model. Primarily to enable or disable a control based on a condition. How do I go about doing that in Stylet?

thanks

[canton7]

In MVVM, you'd normally put a property on your ViewModel and then bind to it from your view. For example:

<Button IsEnabled="{Binding EnableButton}">...</Button>

public class MyViewModel : Screen
{
    private bool _enableButton;
    public bool EnableButton
    {
        get => _enableButton;
        private set => SetAndNotify(ref _enableButton, value);
    }

    public EnableTheButton()
    {
        EnableButton = true;
    }
}

If you do need to access the view directly (and this is incredibly rare: you can do almost everything you could ever need using bindings, converters, attached properties and/or attached behaviors), you can do that using Screen's .View property.

[chasihle]

Thanks,works like a charm Charlie On Sunday, November 15, 2020, 11:31:10 AM EST, Antony Male notifications@github.com wrote:

In MVVM, you'd normally put a property on your ViewModel and then bind to it from your view. For example:

...public class MyViewModel : Screen { private bool _enableButton; public bool EnableButton { get => _enableButton; private set => SetAndNotify(ref _enableButton, value); } public EnableTheButton() { EnableButton = true; } } If you do need to access the view directly (and this is incredibly rare: you can do almost everything you could ever need using bindings, converters, attached properties and/or attached behaviors), you can do that using Screen's .View property. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[canton7]

Great!