using System.ComponentModel;
using System.Windows;

namespace HandyControl.Tools
{
    public class DesignerHelper
    {
        private static bool? _isInDesignMode;

        public static bool IsInDesignMode
        {
            get
            {
                if (!_isInDesignMode.HasValue)
                {
                    _isInDesignMode = (bool)DependencyPropertyDescriptor.FromProperty(DesignerProperties.IsInDesignModeProperty, typeof(FrameworkElement)).Metadata.DefaultValue;
                }
                return _isInDesignMode.Value;
            }
        }
    }
}