Calculating sums of fields

The Calculate the Field Sum snippet demonstrates how to calculate sums of fields that are at different levels in the form hierarchy when the form is opened.

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In this example, the sum of the repeating fields is calculated.

To calculate the sum of repeating fields in a form

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;

In this example, the sum of the fields nested within a repeating field is calculated.

To calculate the sum of fields nested within a repeating subform

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;

In this example, the sum of the fields on the first page is calculated.

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To calculate the sum of the fields on the first page

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;