Webservice返回字节数组

Question

我有一个web服务，它从db获取byte []列表。我希望能够返回所有值。如何返回字节[]。

 [WebMethod]
        public List<fgrTemplate> StudentVerifications()
         {
            List<fgrTemplate> listOfFgrTemp = new List<fgrTemplate>();
            cn.Open();
            SqlCommand com = new SqlCommand("SELECT Template FROM tblFingerprint", cn);
            SqlDataReader sr = com.ExecuteReader();
            while (sr.Read())
            {
                fgrTemplate fingerprint = new fgrTemplate()
                {
                    ID = sr.GetInt32(0),
                    StudentID = sr.GetInt32(1),
                    Description = sr.GetString(2)
                    Template = sr.GetByte??
                };
 listOfFgrTemp.Add(fingerprint);
  }

            cn.Close();
            return listOfFgrTemp;

        }

Answer 1

像这样：

Template = (byte[])sr[3];

OR

Template = (byte[])sr["Template"];