上传二进制文件到数据库image类型字段

//保存上传文件
   if(myFile.PostedFile!=null)
   {
    if (myFile.PostedFile.FileName.Length==0)
    {
     this.lbScript.Text = "<script language=javascript>alert('请选择上传文件！');</script>";
     return;
    }
    
    imgStream=myFile.PostedFile.InputStream ;
    imgLen=myFile.PostedFile.ContentLength;
    imgfiletype="DOC";
    imgBinaryData=new byte[imgLen];
   
    imgStream.Read(imgBinaryData,0,imgLen);
    
   }
   else
   {
    imgBinaryData=new byte[0];
    
   }

   bool result = InsertLog(Int32.Parse(Session["UserID"].ToString()),myc.SimpleTanslate(this.TextBox1.Text),Int32.Parse(this.DropDownList1.SelectedItem.Value),System.DateTime.Now,imgBinaryData,myc.SimpleTanslate(this.TextBox2.Text));

/// <summary>
  /// 保存ObjectDict文件
  /// </summary>
  /// <param name="filename"></param>
  /// <param name="MediaTypeid"></param>
  /// <param name="imgBinaryData"></param>
  /// <param name="imgfiletype"></param>
  /// <param name="objectid"></param>
  /// <returns></returns>
  public static bool InsertLog(int userID,string content,int typeID,DateTime date,byte[] imgBinaryData,string note)
  {
   string strLog = null;

   SqlConnection cn = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["DB_PMMS_String"]);
   string sql="PMMSOA_Log_SaveLog";
   SqlParameter[] paras = new SqlParameter[6];
   paras[0] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@UserID",userID);
   paras[1] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@Content",content);
   paras[2] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@TypeID",typeID);
   paras[3] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@Date",date);
   paras[4] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@Attachment",imgBinaryData);
   paras[5] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@Note",note);
   //paras[4] =PMMSWeb.DataAccessor.CommonFun.SqlHelper.NewParameter("@Note",objectid);
   SqlCommand cmd =PMMSWeb.DataAccessor.CommonFun.SqlHelper.CreateCommand(sql,cn,CommandType.StoredProcedure,paras);
   try
   {
    using(cn)
    {
     cn.Open();
     cmd.ExecuteNonQuery();
     cn.Close();
     strLog = string.Format("[工作日志]增加表单成功！详细信息：Content={0}。",content);
     return true;
   
    }
   }
   catch(Exception ex)
   {
    strLog = string.Format("[工作日志]增加表单成功！详细信息：Content={0}。",content);
    
    return false;
   }
   finally
   {
    //写入日志
    PMMSWeb.DataAccessor.CommonFun.Logger.WriteUserLog(strLog);
   }
   
  }