/// <summary>
/// add a record
/// </summary>
/// <param name="myID"></param>
public void Insert(dh_categorias mydh_cat)
{
CnxBase myBase = new CnxBase();
string reqSQL = "INSERT INTO dh_categorias (categoria) VALUES ('" + mydh_cat.categoria + "')";
try
{
NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString);
NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn);
myCommand.ExecuteNonQuery();
myBase.CloseConnection(myConn);
}
catch (Exception myErr)
{
throw (new Exception(myErr.ToString() + reqSQL));
}
}
/// <summary>
/// modify a record
/// </summary>
public void Update(dh_categorias mydh_cat)
{
CnxBase myBase = new CnxBase();
string reqSQL = "UPDATE dh_categorias SET id_categoria=" + mydh_cat.id_categoria + ",categoria='" + mydh_cat.categoria + "' WHERE (id_categoria=" + mydh_cat.id_categoria + ")";
try
{
NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString);
NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn);
myCommand.ExecuteNonQuery();
myBase.CloseConnection(myConn);
}
catch (Exception myErr)
{
throw (new Exception(myErr.ToString() + reqSQL));
}
}
/// <summary>
/// get an instance of object
/// </summary>
/// <param name="myID"></param>
public dh_categorias getObject(System.Int32 myID)
{
dh_categorias dh_cat = new dh_categorias();
CnxBase myBase = new CnxBase();
string reqSQL = "SELECT id_categoria,categoria FROM dh_categorias WHERE (id_categoria=" + myID + ")";
try
{
NpgsqlConnection myConn = myBase.OpenConnection(myBase.cnxString);
NpgsqlCommand myCommand = new NpgsqlCommand(reqSQL, myConn);
NpgsqlDataReader myReader = myCommand.ExecuteReader();
if (myReader.Read())
{
dh_cat.id_categoria = Convert.ToInt32(myReader[0]);
dh_cat.categoria = myReader[1].ToString();
}
myBase.CloseConnection(myConn);
}
catch (Exception myErr)
{
throw (new Exception(myErr.ToString() + reqSQL));
}
return(dh_cat);
}