Silverlight 4: how to switch control visibility

Question

I am using MVVM in my Silverlight app. When control visibility is need to be managed by data, I am connecting its \'Visibility\' property to object\'s corresponding property

Answer 1

I've faced the problem of binding a Boolean value to the visibility property, so I've implemented my own Boolean to Visibility Converter, I'm using it with most of my applications.

Add the Following Class to your application:

public class BoolVisibilityConverter : IValueConverter{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture){
        bool isVisible = (bool)value;
        return isVisible ? System.Windows.Visibility.Visible : System.Windows.Visibility.Collapsed;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture){
        System.Windows.Visibility currVisibility = (System.Windows.Visibility)value;
        return (currVisibility == System.Windows.Visibility.Visible);
    }
}

Now To Use it you'll need to add it as a resource in your XAML Code.

In your example use the following: