Re: automatic exception on IDEs

[Pablo Lopez]

Hi all,
Thanks Ron and Guilles.
Ooops, maybe I forgot to tell something important: I'm not using 
WebForms, but WindowsForms.

I'm not posting the exact code cause unfortunately it's in Spanish, but 
the idea is that I want some code like this to run on initialization, so 
I place it inside the constructor or on the load event:

ShiftsPanel.cs:
foreach (Shift s in (ArrayList) Shift.SelectAllShifts())
{
        this.listBoxShifts.Items.Add(s);
}
Shift.cs:
public static ArrayList SeleccionarTodosTurnos()
{
        return((ArrayList) Mapa.Instancia().SelectList(0, "SelectAllShifts"));
}
I've also got another layer using a singleton which is basically like 
iBatis, which tries to isolate my code from iBatis just in case I want 
to switch to another persistence framework or no persistence framework 
at all (just SQL sentences):

Mapa.cs:
public class Mapa
{
                                
// SINGLETON
                
private static volatile Mapa _mapa = null;
                
protected static void InitMapa()
{
        _mapa = new Mapa();
}
                
public static Mapa Instancia()
{
        if (_mapa == null)
        {
                lock (typeof (Mapa))
                {
                if (_mapa == null)
                        InitMapa();
                }
        }
        return _mapa;
}
                
// IBATIS
                
private SqlMapper Ibatis()
{
        SqlMapper m = Mapper.Instance();
        return(m);
}
                
// METHODS TO INTERACT WITH DATABASE
                
public IList SelectList(object param, string sentence)
{
        return(this.Ibatis().QueryForList(sentence, param));
}
...
} // End Mapa

And of course if that code on ShiftsPanel.cs is run automatically by the 
IDE, it follows the chain until it ends up calling Ibatis.

Thanks again,
Pablo.