Webservice返回字节数组

本文关键字：数组字节数字节返回 Webservice | 更新日期: 2023-09-27 17:49:40

我有一个web服务，从数据库中获取byte[]列表。我希望能够返回所有的值。如何返回一个字节[].

 [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;
        }

Webservice返回字节数组

像这样:

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

或

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