WPF Command 传递多个参数

有时候Command需要多个参数，记录一下操作方式

<Button Content="Zoom" Command="{Binding BtnCommand">
    <Button.CommandParameter>
        <MultiBinding Converter="{StaticResource MyConverter}">
             <Binding Path="Width" ElementName="Canvas1"/>
             <Binding Path="Height" ElementName="Canvas1"/>
        </MultiBinding>
    </Button.CommandParameter>
</Button>

对应的cs如下

public class IMultiValueConverter
{
    public object MyConvert(object[] values, ...)
    {
        return values.Clone();
    }
}

public void OnExecute(object parameter)
{
    var values = (object[])parameter;
    var width = (double)values[0];
    var height = (double)values[1];
}