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#1
August 9th, 2011, 02:10 PM
 Hawk Junior Community Member Join Date: Mar 2009 Location: Tampa, FL Posts: 23
Add Total Of column of Numbers

I have have an external data file that I am using to display a list of courses. Each record will display the courses that match a field in my data. That part works fine.

One of the columns is a number that represents hours. I need to add all of the hours for a given record to get total hours and display that number.

Thanks,
Larry
#2
August 9th, 2011, 02:45 PM
 step Senior Contributor Join Date: Jan 2010 Location: Charlotte, NC Posts: 955
Re: Add Total Of column of Numbers

How about something like this to push the number of records from each record in the external data file into an array and then return the sum amount of that array?

Code:
```var hours = [];
var totalHours = 0;
var records = externalDataFile.recordCount;

// Start an array for your hours
for (var i=1; i <= records; i++)
{
hours.push(externalDataFile.GetFieldValue(i,'Hours'));

}

for (var n=0; n< hours.length; n++){
totalHours += Int(hours[n]);
}

__________________
Ste Pennell
FusionPro VDP Creator 9.3.15
Mac OS X 10.12

#3
August 10th, 2011, 06:53 AM
 Hawk Junior Community Member Join Date: Mar 2009 Location: Tampa, FL Posts: 23
Re: Add Total Of column of Numbers

Thanks for the help.

The only change was. totalHours += Int(hours[n]); To totalHours += StringToNumber(hours[n]);

I need to return a floation-point Number.
#4
August 10th, 2011, 07:38 AM
 Hawk Junior Community Member Join Date: Mar 2009 Location: Tampa, FL Posts: 23
Re: Add Total Of column of Numbers

I'm having a problem with the math on this. It seems that if I have more than one record match in the external data file it doubles the returned value. If only one match is found it is correct.

Code:
```
//Check for a valid External File
if(FusionPro.Composition.isPreview == true || FusionPro.inValidation == true)
{
Rule("OnJobStart");
}
function trimNumber(s) {
while (s.substr(0,1) == '0' && s.length>1) { s = s.substr(1,9999); }
return s;
}
var hours = [];
var totalHours = 0;
var numRecsExtDF = XDF.recordCount;
//count records in database
for (var i=1; i <= numRecsExtDF; i++){
if (XDF.GetFieldValue(i, 1) == trimNumber(s) && XDF.GetFieldValue(i, 5) == "Technical")
{
{
hours.push(XDF.GetFieldValue(i, 4));
}

for (var n=0; n< hours.length; n++){
totalHours += StringToNumber(hours[n]);
}
}

}
var result = totalHours.toFixed(2);
return result;```
Can anyone tell me what I'm missing?
#5
August 10th, 2011, 09:57 AM
 Dan Korn FusionPro Senior Engineer / Forum Moderator Join Date: Aug 2008 Location: Chicago, IL Posts: 4,592
Re: Add Total Of column of Numbers

Why are you putting the values into an array and then adding them? Just add the numbers as you find them in the file:
Code:
```if(FusionPro.inValidation)
Rule("OnJobStart");

var totalHours = 0;
for (var i = 1; i <= XDF.recordCount; i++)
{
if (XDF.GetFieldValue(i, 1) == s && XDF.GetFieldValue(i, 5) == "Technical")
totalHours += StringToNumber(XDF.GetFieldValue(i, 4));
}
I simplified a few other things too.
__________________
Dan Korn
FusionPro Developer / JavaScript Guru / Forum Moderator
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#6
August 10th, 2011, 12:18 PM
 Hawk Junior Community Member Join Date: Mar 2009 Location: Tampa, FL Posts: 23
Re: Add Total Of column of Numbers

That did it thanks for the help.