Webservice返回字节数组

Question

我有一个web服务从数据库获取byte []的列表。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; 

     } 

Answer 1

像这样：

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

OR

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