HandyControl/src/Shared/HandyControl_Shared/Tools/Converter/Double2GridLengthConverter.cs

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

namespace HandyControl.Tools.Converter
{
    public class Double2GridLengthConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double doubleValue)
            {
                if (double.IsNaN(doubleValue) || double.IsInfinity(doubleValue))
                {
                    return new GridLength(1.0, GridUnitType.Star);
                }
                return new GridLength(doubleValue);
            }

            return new GridLength(0);
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}