public void actualizar(MCategoria obj)
{
conexion();
string query = "UPDATE categoria SET categoria= '" + obj.categoria + "' WHERE pk_categoria = '" + obj.pk_categoria + "'";
MySqlCommand cmd = new MySqlCommand(query, con);
cmd.ExecuteNonQuery();
cmd.Dispose();
con.Close();
}
public MCategoria insertar(MCategoria obj)
{
conexion();
string query = "INSERT INTO categoria(categoria)VALUES('" + obj.categoria + "')";
MySqlCommand cmd = new MySqlCommand(query, con);
cmd.ExecuteNonQuery();
cmd.Dispose();
con.Close();
return(obj);
}
public MCategoria modificar(int pk)
{
conexion();
string query = "SELECT * FROM categoria WHERE pk_categoria = '" + pk + "'";
MySqlCommand cmd = new MySqlCommand(query, con);
MySqlDataReader cursor = cmd.ExecuteReader();
MCategoria obj = new MCategoria();
if (cursor.HasRows)
{
while (cursor.Read())
{
obj.pk_categoria = Convert.ToInt32(cursor["pk_categoria"].ToString());
obj.categoria = cursor["categoria"].ToString();
}
}
cursor.Dispose();
cmd.Dispose();
con.Close();
return(obj);
}
