String Find Issues on passed by reference parameter

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Hi guys,

Im struggling with a simple string find function.

I am using OnChartEvent handler, and my idea is to take the sparam and search it for a string, for example search for "Remove" in the object name, if there was a click on an object(button) on the chart. But the string find always returns 0 ! I printed the sparam, and its ok, it contains the word i am searching for(i have accounted for the uppercase), so this is my problem. Maybe the thing is that sparam is passed by reference, i am not sure.

void OnChartEvent(const int id,         // Event identifier  
                  const long& lparam,   // Event parameter of long type
                  const double& dparam, // Event parameter of double type
                  const string& sparam) // Event parameter of string type
{
 if(id==CHARTEVENT_OBJECT_CLICK)
  {
      if(StringFind(sparam,"Remove")>0)
        {
            Print("Expert Removed by command !");
            ExpertRemove();
            return;
        }
   }
}

Id appreciate it if someone helps !

Thanks

 
Stanislav Ivanov:

Hi guys,

Im struggling with a simple string find function.

I am using OnChartEvent handler, and my idea is to take the sparam and search it for a string, for example search for "Remove" in the object name, if there was a click on an object(button) on the chart. But the string find always returns 0 ! I printed the sparam, and its ok, it contains the word i am searching for(i have accounted for the uppercase), so this is my problem. Maybe the thing is that sparam is passed by reference, i am not sure.

Id appreciate it if someone helps !

Thanks

0 means the "Remove" is found on the first position of the string. You should write:
void OnChartEvent(const int id,         // Event identifier  
                  const long& lparam,   // Event parameter of long type
                  const double& dparam, // Event parameter of double type
                  const string& sparam) // Event parameter of string type
{
 if(id==CHARTEVENT_OBJECT_CLICK)
  {
      if(StringFind(sparam,"Remove")>=0)
        {
            Print("Expert Removed by command !");
            ExpertRemove();
            return;
        }
   }
}
 
Amir Yacoby:
0 means the "Remove" is found on the first position of the string. You should write:

oh, right, i forgot about that.

Thanks !

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