tags.cs

namespace MvcBootest.Helpers
{
    public class TagsHelper
    {
        public IList<string> GetTags(string message)
        {
            return
                message.Split(' ').Where(word => word.StartsWith("#")).Select(word => word.Substring(1)).Select(
                    newTagValue => new Tag
                                       {
                                           Value = newTagValue
                                       }).Select(newTag => newTag.Value).ToList();
        }
    }
}