how to alert once at a time
..
static bool hasSentAlertOnce = false ;
..
if(normal logic... ){
if( !hasSentAlertOnce ){
Alert(" Alert " + Symbol() +" "+ Period());
hasSentAlertOnce= true;
}
}else {
hasSentAlertOnce = false;
}
..
static bool hasSentAlertOnce = false ;
..
if(normal logic... ){
if( !hasSentAlertOnce ){
Alert(" Alert " + Symbol() +" "+ Period());
hasSentAlertOnce= true;
}
}else {
hasSentAlertOnce = false;
}
- Global == static
- Depending on the how often your 'normal logic' triggers, you might want to suppress the alert for a period of time:
static datetime allowAlert; if (TimeCurrent() > allowAlert){ allowAlert=TimeCurrent()+ 5*60; Alert(...
..
//< Initialization >
bool hasSentAlertOnce = false ;
//</Initialization >
..
if(normal logic... ){
if( !hasSentAlertOnce ){
Alert(" Alert " + Symbol() +" "+ Period());
hasSentAlertOnce= true;
}
}else {
hasSentAlertOnce = false;
}
You set your flag to TRUE
if( !hasSentAlertOnce ){ Alert(" Alert " + Symbol() +" "+ Period()); hasSentAlertOnce= true; }
than a signal repeats and it is FALSE again,
}else {
hasSentAlertOnce = false;
}
thus no sense in changing the flag so often.
Use another trick:
if ( ALERT_CONDITION ) { Alert(); wasAlert = true; }
if ( ANTI_ALERT_CONDITION ) { wasAlert = false; }
ANTI_ALERT_CONDITION must be different from ALERT_CONDITION but not a simple "else".
If you have sell and buy signals alert it is better to use a switch:
int Last_Signal = 0; //--no signal so far
if ( buySignalAppeared && Last_Signal <= 0 ) { Alert(); Last_Signal = 1; } //--was sell, become buy
if ( sellSignalAppeared && Last_Signal >= 0 ) { Alert(); Last_Signal = -1; } //--was buy, become sell
..
//< Initialization >
bool hasSentAlertOnce = false ;
//</Initialization >
..
if(normal logic... ){
if( !hasSentAlertOnce ){
Alert(" Alert " + Symbol() +" "+ Period());
hasSentAlertOnce= true;
}
}//else {
//hasSentAlertOnce = false;
//}
double alertTag; if (rule for alert && alertTag!=Time[0]){ Alert (blablabla); alertTag=Time[0]; }This will give you alert only once per bar, but if on next bar open rule for alert is still true it will gives you alert again on so on.
This will give you alert only once per bar, but if on next bar open rule for alert is still true it will gives you alert again on so on.
This solution works well for me, butI had to declare "alertTag" as a STATIC DATETIME variable not a Double.
Thanks
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my code didnt perform well. ex :
if(normal logic... ){
if( !hasSentAlertOnce ){
Alert(" Alert " + Symbol() +" "+ Period());
hasSentAlertOnce= true;
}
}else {
hasSentAlertOnce = false;
}
anything wrong in this code (bt didnt wrk :( alert over n over ) . still couldnt figure out