How To: Add JavaScript event to Line Item Removal/Trashcan

With some custom Javascript the trashcan may effect an update ensuring the resulting remaining items are calculating as intended

Step-by-step guide

1. Click on Modules.

2. Select the Module with the Line Item.

3. Select the Forms tab.

4. Select Field List button "Create/Update Fields".

5. Use the filter to find relevant Line Item.

6. Select the control name or pencil icon to Edit.

7. Select Custom JavaScript tab.

8. Paste the Javascript below
   

/*** Example: Remove Handler for Line Item trash can **/
fieldScope.factoryremoveRow = fieldScope.removeRow;
fieldScope.removeRow = function (field, idx) {
debugger;
fieldScope.factoryremoveRow(field, idx)
debugger;
var runningTotal = 0;
/ loop for i 0-19 /
for (var i = 0; i < 20; i++) {
/ Using i as row # checks if the field and row exist */
if (formScope.formdata.hasOwnProperty("line_extendedfieldLineItem_customString8_" + i) && formScope.formdata[("line_extendedfieldLineItem_customString8_" + i)]) {
var sysInv = 0;
if (formScope.formdata[("line_extendedfieldLineItem_customNumeric5_" + i)]){
sysInv = formScope.formdata[("line_extendedfieldLineItem_customNumeric5_" + i)];
}
var physInv = 0;
if (formScope.formdata[("line_extendedfieldLineItem_customNumeric6_" + i)]){
physInv = formScope.formdata[("line_extendedfieldLineItem_customNumeric6_" + i)];
}
var pendInv = 0;
if (formScope.formdata[("line_extendedfieldLineItem_customNumeric7_" + i)]){
pendInv = formScope.formdata[("line_extendedfieldLineItem_customNumeric7_" + i)];
}
// Assign total calculation for row
formScope.formdata[("line_extendedfieldLineItem_customNumeric8_" + i)] = (physInv - sysInv);
runningTotal = runningTotal + formScope.formdata[("line_extendedfieldLineItem_customNumeric8_" + i)];
}
}
// Assign Final Total calculation for all rows
formScope.formdata.customNumeric4 = runningTotal;
};