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

namespace MECF.Framework.UI.Core.Converters
{
    public class StringToDoubleConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null)
                return double.NaN;

            if (double.TryParse(value.ToString(), out var dbl))
                return dbl;

            return value;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null)
                return "";
            return value.ToString() ?? "";
        }
    }
}