Fix syntax error when executing stored procedures in MySQL using mysq…

…lconnector. (#873)

(cherry picked from commit 2d21345)

dotnet/src/dotnetframework/GxClasses/Data/GXDataMysqlConnector.cs

@@ -1,26 +1,25 @@
+using System;
+using System.Data;
+using System.Data.Common;
+using System.Linq;
+using System.Reflection;
+using System.Security;
+using System.Text;
 using GeneXus.Application;
 using GeneXus.Cache;
 using GeneXus.Utils;
+using GxClasses.Helpers;
 using log4net;
 using MySQLCommand = MySqlConnector.MySqlCommand;
-using MySQLParameter = MySqlConnector.MySqlParameter;
 using MySQLConnection = MySqlConnector.MySqlConnection;
-using MySQLException = MySqlConnector.MySqlException;
-using MySQLDbType = MySqlConnector.MySqlDbType;
 using MySQLDataAdapter = MySqlConnector.MySqlDataAdapter;
-using System.IO;
-using GxClasses.Helpers;
-using System.Reflection;
-using System;
-using System.Data;
-using System.Data.Common;
-using System.Text;
-using System.Collections.Generic;
-using System.Security;
+using MySQLDbType = MySqlConnector.MySqlDbType;
+using MySQLException = MySqlConnector.MySqlException;
+using MySQLParameter = MySqlConnector.MySqlParameter;
 
 namespace GeneXus.Data
 {
-	
+
 	public class GxMySqlConnector : GxDataRecord 
 	{
 		static readonly ILog log = log4net.LogManager.GetLogger(typeof(GeneXus.Data.GxMySqlConnector));
@@ -49,27 +48,9 @@ public override GxAbstractConnectionWrapper GetConnection(bool showPrompt, strin
 			return new MySqlConnectorConnectionWrapper(m_connectionString, connectionCache, isolationLevel);
 		}
 
-		string convertToMySqlCall(string stmt, GxParameterCollection parameters)
-		{
-			if (parameters == null)
-				return "";
-			string pname;
-			StringBuilder sBld = new StringBuilder();
-			for (int i = 0; i < parameters.Count; i++)
-			{
-				if (i > 0)
-					sBld.Append(", ");
-				pname = "@" + parameters[i].ParameterName;  
-				sBld.Append(pname);
-				parameters[i].ParameterName = pname;
-			}
-			return "CALL " + stmt + "(" + sBld.ToString() + ")";    
-		}
 		[SecuritySafeCritical]
 		public override IDbCommand GetCommand(IGxConnection con, string stmt, GxParameterCollection parameters, bool isCursor, bool forFirst, bool isRpc)
 		{
-			if (isRpc)
-				stmt = convertToMySqlCall(stmt, parameters);
 			MySQLCommand mysqlcmd = (MySQLCommand)base.GetCommand(con, stmt, parameters.Distinct());
 			if (isCursor && !isRpc)        
 			{

dotnet/src/dotnetframework/GxClasses/Domain/GxCollections.cs

@@ -60,7 +60,10 @@ public int Add(IDataParameter value)
 		{
 			return parameters.Add(value);
 		}
-
+		internal void Reverse()
+		{
+			parameters.Reverse();
+		}
 		public void Clear()
 		{
 			parameters.Clear();
@@ -158,6 +161,7 @@ public GxParameterCollection Distinct()
 						parms.Add(this[j].ParameterName);
 					}
 				}
+				uniqueParms.Reverse();
 				return uniqueParms;
 			}
 			else