在Xamarin XAML MVVM中有条件地绑定到两个不同的命令

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:viewModel="clr-namespace:YourNamespace.ViewModels"
             x:Class="YourNamespace.YourPage">

    <ContentPage.BindingContext>
        <viewModel:YourViewModel />
    </ContentPage.BindingContext>

    <StackLayout>
        <Button Text="Command 1" Command="{Binding Command1}">
            <Button.Triggers>
                <DataTrigger TargetType="Button" Binding="{Binding IsCondition1}">
                    <Setter Property="Command" Value="{Binding Command2}" />
                </DataTrigger>
            </Button.Triggers>
        </Button>
    </StackLayout>

</ContentPage>