从抽象类引用inherting类

Type )继承抽象类的?

class abstract Monster
{
    string Weakness { get; }
    string Vice { get; }

    Type WhatIAm
    {
        get { /* somehow return the Vampire type here? */ }
    }
}

class Vampire : Monster
{
    string Weakness { get { return "sunlight"; }
    string Vice { get { return "drinks blood"; } }
}

//somewhere else in code...
Vampire dracula = new Vampire();
Type t = dracula.WhatIAm; // t = Vampire

对于那些好奇的人。。。 我在做什么:我想知道我的网站最后一次发布是什么时候。 .GetExecutingAssembly 工作得很好,直到我把dll从我的解决方案中取出。在那之后 BuildDate 始终是实用程序dll的最后生成日期,而不是网站的dll。

namespace Web.BaseObjects
{
    public abstract class Global : HttpApplication
    {
        /// <summary>
        /// Gets the last build date of the website
        /// </summary>
        /// <remarks>This is the last write time of the website</remarks>
        /// <returns></returns>
        public DateTime BuildDate
        {
            get
            {
                // OLD (was also static)
                //return File.GetLastWriteTime(
                //    System.Reflection.Assembly.GetExecutingAssembly.Location);
                return File.GetLastWriteTime(
                    System.Reflection.Assembly.GetAssembly(this.GetType()).Location);
            }
        }
    }
}