Calculating the field sums

This example demonstrates how to calculate the sums of fields located at different levels of the form hierarchy when the form filler opens the form in a client application, such as Acrobat Professional, Adobe Reader, or HTML client.

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Scripting for calculating the sum of repeating fields in a form

To calculate the sum of repeating fields in a form, you add a calculate event to the Sum field:

    var fields = xfa.resolveNodes("NumericField1[*]"); 
 
    var total = 0; 
    for (var i=0; i <= fields.length-1; i++) { 
        total = total + fields.item(i).rawValue; 
    } 
 
    this.rawValue = total;

Scripting for calculating the sum of repeating fields

Similarly, to calculate the sum of repeating fields, you add a calculate event to the Sum field:

    var fields = xfa.resolveNodes("detail[*].NumericField1"); 
 
    var total = 0; 
    for (var i=0; i <= fields.length-1; i++) { 
        total = total + fields.item(i).rawValue; 
    } 
 
    this.rawValue = total;

Scripting to calculate the sum of the fields on the page

To calculate the sum of the fields on the page, you add a calculate event to the Sum field:

    var fields = xfa.layout.pageContent(0 , "field", 0); 
 
    var total = 0; 
    for (var i=0; i <= fields.length-1; i++) { 
        if (fields.item(i).name == "NumericField1") { 
             total = total + fields.item(i).rawValue; 
             } 
    } 
 
    this.rawValue = total;