CODE EXAMPLE FOR CSHARP

how to close a popup wpf c# on click event

public class InverseBooleanConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return !((bool)value);
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return !((bool)value);
    }
}