c logging help class sharing

public class LogHelper
   {
       private static void Info(string category, int priority, TraceEventType severity, string message)
       {
           IDictionary<string, object> dic = new Dictionary<string, object>();
           dic.Add(" attribute :", category);
           dic.Add(" content :", message);
           ICollection<string> coll = new List<string>();
           coll.Add("General");

           LogEntry log = new LogEntry();
           log.Priority = priority;
           log.Severity = severity;
           log.Message = category;//" Log test ";
           log.TimeStamp = DateTime.Now;
           log.ExtendedProperties = dic;// Record additional information 
           log.Categories = coll;// Sets the type of log to be logged 
           Logger.Write(log);
       }
       public static void Debug(string message)
       {
           Info("Debug", 1, TraceEventType.Information, message);
       }
       public static void DebugFormat(string format, params object[] args)
       {
           Info("Debug", 1, TraceEventType.Information, String.Format(format, args));
       }
       public static void Trace(string message)
       {
           Info("Trace", 1, TraceEventType.Information, message);
       }
       public static void TraceFormat(string format, params object[] args)
       {
           Info("Trace", 1, TraceEventType.Information, String.Format(format, args));
       }
       public static void Error(string message)
       {
           Info("Error", 1, TraceEventType.Error, message);
       }
       public static void ErrorFormat(string format, params object[] args)
       {
           Info("Error", 1, TraceEventType.Error, String.Format(format, args));
       }
       public static void Error(object obj, Exception ex)
       {
           Info("Error", 1, TraceEventType.Error, String.Format("Error Info:{0},{1}", obj, ex.Message));
       }
       // logging  
       public static void WriteLog(string errorTitle, string properties, string content)
       {
           IDictionary<string, object> dic = new Dictionary<string, object>();
           dic.Add(" attribute :", properties);
           dic.Add(" content :", content);

           ICollection<string> coll = new List<string>();
           coll.Add("General");

           LogEntry log = new LogEntry();
           log.Message = errorTitle;//" Log test ";
           log.TimeStamp = DateTime.Now;
           log.ExtendedProperties = dic;// Record additional information 
           log.Categories = coll;// Sets the type of log to be logged 
           Logger.Write(log);
       }
   }

usage

#region  According to the JobNO Gets the name of the corresponding operator  EMPLOYEE  table 
       /// <summary>
       ///  According to the JobNO Gets the name of the corresponding operator 
       /// </summary>
       /// <param name="jobNo">JobNO</param>
       /// <returns></returns>
       public static string GetManagerNameByjobNo(string jobNo)
       {
           string strSql = "select IN_USER from IMPGTBILL where JOB_NO=@jobNo";
           try
           {
               object temp = SqlHelper.Instance("Conn_GM")
                   .ExecuteScalar(strSql, new[] { new SqlParameter("@jobNo", jobNo) });
               if (temp != null)
               {
                   return temp.ToString();
               }
               return "";
           }
           catch (Exception e)
           {
               LogHelper.ErrorFormat("OrderTitle_DAL.GetManagerNameByjobNo:{0}", e.Message);
               return null;
           }
       }
       #endregion