SQL Script

/*==============================================================*/
/* Table: Settings */
/*==============================================================*/

create table t_settings (
id int not null,
description nvarchar(255) not null,
value nvarchar(255) not null
)
on PRIMARY
go

insert into t_settings values(1, "Site administrator name", "admin")
insert into t_settings values(2, "Site administrator password", "adminPWD")
insert into t_settings values(3, "Images directory", "img")

Configurator.cs

public enum Settings
{
AdminName = 1,
AdminPassword = 2,
ImagesDir = 3
}

public string GetConfigurationValue(Settings setting)
{
SqlConnection myCnn;
SqlCommand myCmd;
SqlDataReader myReader;

String sSQL = "select * from t_settings where id=" + setting;
myCnn = new SqlConnection(sSQLConnectionString);
myCmd = new SqlCommand(sSQL, myCnn);
myCnn.Open();
myReader = myCmd.ExecuteReader();
myReader.Read();
sSQL = myReader["value"];
myCnn.Close();
return sSQL;
}

SomePage.asax.cs

private void Page_Load(object sender, System.EventArgs e)
{
Configuration conf = new Configuration();
sImagePath = conf.GetConfigurationValue(Settings.ImagesDir);
// :
// Do something
// :
}