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Object Must Implement IConvertible.   ------ Error.

Posted on 2004-04-08
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Last Modified: 2008-03-06
I am constantly getting this error, how ever i implement or change my code.

the error is "Object must Implement IConvertible"

Dont know how to solve, it. I am getting this error at the last line. SqlCmd.ExecuteNonQuery();


Any Ideas.


Here is the Code, Cut and paste to VS.NET.            


                                  #region public static LogErrorToSqlServer
            static public void LogErrorToSQLServer(
                                          int errorCode,
                                          string errorSource,
                                          string errorCulture,
                                          string errorMessage)
            {
                  SqlConnection SqlConn = null;
                  SqlCommand SqlCmd = null;
                  
                  try
                  {
                        SqlConn = new SqlConnection(Common.DataBaseConnectionString);
                        SqlCmd = new SqlCommand("spInsertError",SqlConn);
                        SqlCmd.CommandType = CommandType.StoredProcedure;
                        
                        SqlParameter paramServer = new SqlParameter("@Server",SqlDbType.VarChar,8);
                        paramServer.Value = System.Web.HttpContext.Current.Server.MachineName;
                        paramServer.Direction = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramServer);
                  
                        SqlParameter paramPageURL = new SqlParameter("@PageURL",SqlDbType.VarChar,127);
                        paramPageURL.Value = System.Web.HttpContext.Current.Request.Url;
                        paramPageURL.Direction = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramPageURL);

                        SqlParameter paramQueryString = new SqlParameter("@QueryString",SqlDbType.VarChar,127);
                        paramQueryString.Value = System.Web.HttpContext.Current.Request.QueryString;
                        paramQueryString.Direction  = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramQueryString);

                        SqlParameter paramSource = new SqlParameter("@ErrorSource",SqlDbType.VarChar,32);
                        paramSource.Value = errorSource;
                        paramSource.Direction  = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramSource);

                        SqlParameter paramCode = new SqlParameter("@ErrorCode",SqlDbType.Int,4);
                        paramCode.Value = errorCode;
                        paramCode.Direction = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramCode);

                        SqlParameter paramCulture = new SqlParameter("@ErrorCulture",SqlDbType.VarChar,8);
                        paramCulture.Value = errorCulture;
                        paramCulture.Direction = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramCulture);

                        SqlParameter paramMessage = new  SqlParameter("@ErrorMessage",SqlDbType.VarChar,512);
                        paramMessage.Value = errorMessage;
                        paramMessage.Direction = ParameterDirection.Input;
                        SqlCmd.Parameters.Add(paramMessage);

                        SqlConn.Open();
                        SqlCmd.ExecuteNonQuery();
                  }
                  catch (Exception ex)
                  {
                        ex.ToString();
                  }
                  finally
                  {
                        
                        if (SqlCmd != null) SqlCmd.Dispose();
                        if (SqlConn != null) { if (SqlConn.State != System.Data.ConnectionState.Closed) SqlConn.Close(); SqlConn.Dispose(); }
                  }
            }
            #endregion
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Question by:steve_mick972
  • 2
3 Comments
 
LVL 12

Assisted Solution

by:dfiala13
dfiala13 earned 400 total points
ID: 10789090
In this case one of your parameters is not the type you expect.  Double check the signature on your stored proc. Could also be some funky characters in your query string param.  Brute force case, strip down to one param and add them in until one breaks.
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LVL 22

Accepted Solution

by:
_TAD_ earned 1600 total points
ID: 10791240


it's also possible that you might be trying to send a C# null value to the stored procedure when the stored procedure might allow a DbNull which is different than a C# null.

But now that I've spit that out, I think it actually throws a different error than what you've provided.


follw dfiala's suggestion and if some reason that doesn't pan out, then look for a data error
0
 
LVL 22

Expert Comment

by:_TAD_
ID: 10791248


Also... if you post the header to the stored procedure someone here may be able to point out your error (if you can't find it).
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