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In this article, we are going to show you how to check multiple files and total up their file size so that it will not exceed a certain threshold through Bean Shell validator.

Sample Screenshots:-

This is an example where you want to upload a file that exceeds 5 MB.

This is an example where all the files are below 5 MB but they total up to exceed 5 MB which causes the validator to work.

To do this, go to a file upload element and select bean shell validator and insert the code below into script.

import org.joget.apps.form.service.FormUtil;
import org.joget.commons.util.FileManager;

boolean result = true;
String[] values = FormUtil.getElementPropertyValues(element, formData);
long totalSize = 0;
long maxSize = 5000000;
String errorMessage = "";

for (String value : values) {
	File file = FileManager.getFileByPath(value);
	if (file != null) {
		totalSize += file.length();
		errorMessage += file.getName() + "(" + file.length()/1048576 + ") " + " | ";
if (totalSize > maxSize) {
	String id = FormUtil.getElementParameterName(element);
	formData.addFormError(id, "Max size(MB) (" + maxSize/1000000 + ") | " + errorMessage);
	result = false;

return result;

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