Consultor Eletrônico

Apptivity version 3.2 code example for opening a message box before deleting a record

Add the delete record event to the datasource by clicking with the right mouse button within the Apptivity project on the datasource.
In the example the

project name is : Ondelete ,
the datasource name : dsCust

the name of resulting java source file generated by that action:

OndeletedsCustClientEvents.java . The only code added manually is
what shown below the line //TODO: Add your handler code here

public class OndeletedsCustClientEvents extends abDSEvents
{
public boolean deleteRecord () throws Exception
{
//TODO: Add your handler code here
Answer answer = new Answer(); // the User Module containing the answer
abMsgBox mymsgbox = new abMsgBox("delete record?","", answer);
mymsgbox.show();
// as long as there is no answer received
int i = 0;
while ((answer.answer == 'u')&&(i++ < 100)) {//take care to avoid deadlocks
try {Thread.sleep(100);} catch (Exception e) {e.printStackTrace();}
} // let the thread sleep , 10 sec time to answer

if (answer.answer == 'u') mymsgbox.close();//if no answer close the box
if (answer.answer == 'y') {
return(true);}
else {
theApp().showStatus("Deletion canceled");
return(false);

// ... continuation of automatically by Apptivity generated // code.

Additional only a User Module containing the answer below is needed:

// this class contains the received answer
import progress.apptivity.client.*;
class Answer implements abI_Observer {

protected char answer = 'u'; // like unknown yet
public boolean update(Object scr, Object arg) {

int received = ((abHint)arg).reason;
if ( received == abConst.OK) answer = 'y'; //like yes
if ( received == abConst.CANCEL) answer = 'n'; //like no

return true;
}
}

References To Written Documentation or Other
KnowledgeBase Documents:

Apptivity API Reference
KBase ID: 19466