using System;
using System.Windows;
using System.Windows.Data;

namespace WpfForWeb
{
    [ValueConversion(typeof(Visibility), typeof(bool))]
    class WaitValue : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Visibility vis = (Visibility)value;
            switch (vis)
            {
                case Visibility.Collapsed:
                    return false;
                case Visibility.Hidden:
                    return false;
                case Visibility.Visible:
                    return true;
                default:
                    return false;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            bool b = (bool)value;
            if (b == true)
            {
                return Visibility.Visible;
            }
            else
            {
                return Visibility.Collapsed;
            }
        }
    }
}