ShrlAlgoToolkit/WPFluent/Converters/StringToColorConverter.cs

using System;
using System.Linq;
using System.Text.RegularExpressions;
using System.Windows.Data;


namespace WPFluent.Converters;

internal class StringToColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    { return value.ToString(); }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        string str = value.ToString();
        Regex regex = new Regex("^#(?:[0-9a-fA-F]{3}){1,2}$");
        if (regex.IsMatch(str))
        {
            var color = ColorConverter.ConvertFromString(str);
            return color;
        }

        return Binding.DoNothing;
    }
}