Workflow expression code - Dialog box for user input

[daraki]

Hello,

I'm looking for a workflow expression code that will launch a dialog box for the reviewer to select an item from a drop-down list when rejecting. The goal is to append the selected value to the Comments and write it into the database to later extract and report on workflow rejections.

I tried using the Java Swing Dialog, but am stuck with an error...

Here's the sample code (2nd line throwing error):

String[] codes = {"DES", "DFT", "BOM"};
String code = (String) javax.swing.JOptionPane.showInputDialog(null, "Select Rejection Code:", "You have chosen to reject this workflow:", javax.swing.JOptionPane.QUESTION_MESSAGE, null, codes, codes[1]);
if (code.trim().length() == 0) {
throw new wt.workflow.engine.FailedTransitionException(e2);
}

The error is:

wt.util.WTException: java.awt.HeadlessException

Does anyone know a way around the above error, or have an alternative method of launching a dialog box from a workflow expression?

Thank you!

[RandyJones]

---

@daraki wrote:

Hello,

I'm looking for a workflow expression code that will launch a dialog box for the reviewer to select an item from a drop-down list when rejecting. The goal is to append the selected value to the Comments and write it into the database to later extract and report on workflow rejections.

I tried using the Java Swing Dialog, but am stuck with an error...

.
.
.

The error is:

wt.util.WTException: java.awt.HeadlessException

Does anyone know a way around the above error, or have an alternative method of launching a dialog box from a workflow expression?

Thank you!

---

Workflow java code runs on the server not on the client. The "java.awt.HeadlessException" means "I have no display to connect to".

You will need to create a workflow or task variable and have the user select this on the task page. You can have code that checks to make sure the user selected something if Rejected.

[daraki]

Thanks for the reply. I see that makes sense... Would setting this property "java.awt.headless" to false on the server resolve this? I did come across CS36017 that outlines how to create a drop-down menu on the workflow task form, but it requires Windchill Information Modeler which we don't have. Is this the method you suggest?