dbname="userdatabase";

ConnectionParameters = New ExternalDataSourceConnectionParameters;
   ConnectionParameters.ConnectionString = "DRIVER={SQL Native Client};SERVER=999.999.999.999;UID=username;PWD=password;DATABASE="+dbname+";LANGUAGE=Türkçe";
   ConnectionParameters.DBMS="MSSQLServer";
   ConnectionParameters.UserName="username";
   ConnectionParameters.Password="password";
   ExternalDataSources.<<dbname>>.SetCommonConnectionParameters(ConnectionParameters);
   ExternalDataSources.<<dbname>>.Connect();