How to write a modified method for a Dialog field?

When a user modifies the Worker field in a dialog form, then the Worker Name should be auto-populated in another dialog field within the same dialog form.

High level resolution steps

Write Common Method in Dialog Class: In the dialog class, write a common method, uses the buffer from control to update the Worker Name field.
Retrieve Control of Worker Field: In the dialog() method, get the control of the Worker field that the user wants to modify.
Register Override Method: Add registerOverrideMethod to call the custom method in the same control.

Detailed resolution steps

Step 1: In the dialog class, write a common method that uses the buffer from control to update the Worker Name field.
Explanation: This code handling modifications “modifyWorkerId” This ensures that when a Worker ID is entered or modified, the corresponding Worker Name is automatically populated in the dialog.


 public boolean modifyWorkerId(FormStringControl _control)
 {
 boolean ret = _control.modified();
 if (ret)
 {
 if (_control.valueStr())
 {
 HcmWorker hcmWorker = 
HcmWorker::findByPersonnelNumber(_control.valueStr());
 workerName.value(hcmWorker.name());
 }
 else
 {
 workerName.value("");
 }
 }
 return ret;
 }

Step 2: In the dialog() method, get control of the Worker field that the user wants to modify. Add registerOverrideMethod to call the custom method in the same control.


 DialogRunbase dialog;
 DialogField worker, workerName;
 FormBuildStringControl workerControl;
 HcmPersonnelNumberId workerValues;
 Object dialog()
 {
 dialog = super();
 
 worker = dialog.addField(extendedTypeStr(HcmPersonnelNumberId));
 workerName = dialog.addField(extendedTypeStr(Name));
 workerControl = worker.control();
 
 workerControl.registerOverrideMethod(methodstr(FormStringControl, 
modified),methodstr(SCCRunbaseDialogClass, modifyWorkerId), this);
 return dialog;
 }

Output

When user clicks the Worker field, worker name is auto populated.