BeanShell Validator for Checkbox

Hi Experts,

I´m needing  validate the value in a checkbox located in a spreadsheet, anybody have an example about the code lines to do it?

I'm using this code currectly but it don't work,  I'm remark the lines specifically with the problem.

I have tried saving the value in an String and later in an Boolean variable but I don't achieve do the evaluation.

public boolean validate(Element element, FormRowSet rows, FormData formData) {
    boolean result = true;
    if (rows != null && !rows.isEmpty()) {
        int total = 0;
        String haycancelacion = "No"; 
         
        //Sum the values from column "amount"
        for (FormRow row : rows) {
            try {
                int can_registrada = Integer.parseInt(row.getProperty("can_movimiento"));
                
                int can_pedida = Integer.parseInt(row.getProperty("cantidad"));
                
                int can_aprovisionada = Integer.parseInt(row.getProperty("cant_aprov"));
                
                total += can_registrada;
                
                
                var isChecked = row.getProperty("cancelar");  //Remark "This is the field Type Checkbox in the spreadsheet .

                
                cantidad_maxima = (can_pedida - can_aprovisionada);
                
                    if (can_registrada > cantidad_maxima) {
                        String id = FormUtil.getElementParameterName(element);
                        formData.addFormError(id, "La cantidad aprovisionada no puede ser mayor a la cantidad solicitada menos la cantidad aprovisionada!!!! ");
                        result = false;
                        }
                    else {
               

 //This is the first evaluation that I'm trying to do and don't work, the evaluation is bypassed (of course does not by the value of can_aprovisionada)

                    if (can_aprovisionada > 0 && isChecked == true) {
                        String id = FormUtil.getElementParameterName(element);
                        formData.addFormError(id, "No puede cancelar un requerimiento previamente aprovisionado!!!! ");
                        result = false;
                     } 

//This is the second evaluation that I'm trying to do and don't work, the evaluation is bypassed (of course does not by the value of can_registrada)

                     else if (can_registrada == 0 && isChecked == true){
                     
                        haycancelacion = "Si"; 
                    }
                   }
            
                } catch (Exception e) { LogUtil.error("Sample app - Bulk Create Users form", e, "Store user error!!"); }
            }
        
        if (total == 0 && haycancelacion.equals("No")) {
            String id = FormUtil.getElementParameterName(element);
            formData.addFormError(id, "Aprovisione alguno de los artículos antes de continuar!!!!" + isChecked);
            result = false;
            }
    }
  
    return result;
}
  
//call validate method with injected variable
return validate(element, rows, formData);