C#

sql_connection = new MySqlConnection(xmlClass.get_connectionstring("BizCards\\BizCards"));
sql_connection.Open();

sql_command = new MySqlCommand("sp_populate_countries", sql_connection);
sql_command.CommandType = CommandType.StoredProcedure;

// Create data adapter object 
sql_adapter = new MySqlDataAdapter();
sql_adapter.SelectCommand = sql_command;

// Create a dataset object and fill with data using data adapter's Fill method 
data_set = new DataSet();
sql_adapter.Fill(data_set, "countries");
DataViewManager dataview_manager = new DataViewManager(data_set);
DataView main_dataview = dataview_manager.CreateDataView(data_set.Tables["countries"]);

cboCountry.Properties.ValueMember = "country_code_alpha2";
cboCountry.Properties.DisplayMember = "country_name";
cboCountry.Properties.DataSource = main_dataview;

cboCountry.Properties.Columns.Add(new DevExpress.XtraEditors.Controls.LookUpColumnInfo("country_name", 50, "country_name"));

cboCountry.Properties.ShowHeader = false;

cboCountry.Properties.PopupSizeable = false;
cboCountry.Properties.ShowFooter = false;
cboCountry.Properties.PopupWidth = 50;

public class ORSerialLotNumber : string {}
public class SerialNumber : ORSerialLotNumber {}
public class LotNumber : ORSerialLotNumber {}

// ......

List<ORSerialLotNumber> mySLNList = new List<ORSerialLotNumber>();
SerialNumber sNum1 = "Sd-23s-3sf";
LotNumber nNum1 = "2342434";

mySLNList.Add(sNum1);
mySLNList.Add(nNum1);

// ......

foreach(var v in mySLNList)
    if(v.GetType() == typeof(SerialNumber))
        string serial = v;
    if(v.GetType() == typeof(LotNumber))
        string lot = v;

Quote:

Error 'System.Collections.Generic.Dictionary<string,nhibernate.isessionfactory>' does not contain a definition for 'get' and no extension method 'get' accepting a first argument of type 'System.Collections.Generic.Dictionary<string,nhibernate.isessionfactory>' could be found (are you missing a using directive or an assembly reference?)

protected static ISessionFactory getSessionFactory(string configFile) 
        {
		    if (null == configFile) 
            {
			    if (sessionFactory == null) 
                {
                    throw new Exception("The session factory has not been initialized (or an error occurred during initialization)");
                }
			    else
                {
                    return sessionFactory;
                }
		    }
		    else 
            {
			    if (sessionFactoryMap == null)
                {
                    throw new Exception("The session factory for '" + configFile + "' has not been initialized (or an error occurred during initialization)");
                }
			    else 
                {
				    ISessionFactory sf = (ISessionFactory) sessionFactoryMap.get(configFile);
				    if (null == sf) 
                    {
                        throw new Exception("The session factory for '" + configFile + "' has not been initialized (or an error occured during initialization)");
                    }
				    else
                    {
                        return sf;
                    }
			    }
		    }
	    }