//------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------
 
namespace System.Activities.Presentation
{
    using System.Globalization;
    using System.Windows.Data;
 
    //Null To Boolean Converter
    internal sealed class NullToBooleanConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value != null;
        }
 
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw FxTrace.Exception.AsError(new NotSupportedException());
        }
    }
 
}