SWRIS-HD/Converters/NullToBooleanConverter.cs

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

namespace SWRIS.Converters
{
    public class NullToBooleanConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null || value.ToString() == string.Empty)
            {
                return true;
            }
            return false;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value is bool b ? !b : value;
        }
    }
}