Thanks to Eaglehawk for his help.

For a first EA, I have tried to begin very simple.

Buy if last bar close is higher than previous close.No sell, no Takeprofit, no stoploss and no trailing stop, thinking I will see the backtest chart full with buys, but nothing.

The EA was compiled without mistakes, and I have not any message of error.

What is wrong.

Thanks for help.

extern double MaxOpenTrade=4;
extern double Lots = 0.1;
extern double TakeProfit=25;


int start()
{
double CloseCurrent,ClosePrevious;
int total,ticket;

if(Bars<100)
{
Print("Moins de 100 bougies !");
return(0);
}
CloseCurrent= iClose(NULL,PERIOD_M15,0);
ClosePrevious=iClose(NULL,PERIOD_M15,1);
{
total=OrdersTotal();


if(OrdersTotal()<MaxOpenTrade)
{

if(AccountFreeMargin()<(1000*Lots))
{
Print("Il n y a pas suffisamment d argent. La marge disponible est ", AccountFreeMargin());
return(0);
}

if(CloseCurrent> ClosePrevious)


ticket=OrderSend(Symbol(),OP_BUY,Lots,Ask,3,0,Ask+ TakeProfit*Point,"Example Achat ",16384,0,Green);


if(ticket>0)
{
if(OrderSelect(ticket,SELECT_BY_TICKET,MODE_TRADES )) Print("Ordre d ACHAT exécuté à : ",OrderOpenPrice());
}

else Print("Erreur à la création de l ordre ACHAT : ",GetLastError());
return(0);

return(0);
}
}}

The EA doesn't run on backtest but it runs on demo live, always for only 1 trade.

What can I change ?

first off, i don't trust the strategy tester in metatrader 4 for several reason that are still all over this forem and have been for the past month.

secondly, if you want this ea to run in the bactester, maybe you should see what the problem exacly is. there is a tab in the tester titled "journal" click here and see what it says. some problems may be the testers money issue. if you use too big of lot sizes, it'll say "no money availiable" or if it doesn't and the problem is the same, it'll run when you put in bigger starting balances, and not when you use smaller ones.

__________________
"One's ability to accomplish his or her goals is limited only by the ingenuity of how one uses what he or she already knows."- Eaglehawk
REMEMBER, "Genius is nothing but a greater aptitude for patience." –Benjamin Franklin

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