HTML5 Charts - Switching to "Define your series manually" causes Jaspersoft® Studio to open a message prompt that cannot be closed

Issue: 

For HTML5 Charts, when switching from "Use an expression to create your series" to "Define your series manually", a dialog box with the message "Pay attention you risk to lose previously set series expression. Do you want to proceed?" appears.  When clicking on either the "Yes" or "No" buttons, the message prompt does not close and loops continuosly. The user has to manually kill the Jaspersoft® Studio process. 

The steps to reproduce this issue are as follows:

1. For a HTML5 Chart, click on "Edit chart properties"

2. Switch to the Data Configuration tab

3. Click on "Switch to simple configuration"

4. Change to "Use an expression to create your series" and enter a value for "Series Expression"

5. Switch to "Define your series manually"

6. A dialog box appears which will not close regardless of any button being clicked

Solution:

This is a UI defect in Jaspersoft® Studio 7.5.0 and was fixed in Jaspersoft® Studio 7.8.0 (and later).

There is no fix for this issue in Jaspersoft® Studio 7.5.0 and when the issue surfaces, the user needs to kill Jaspersoft® Studio before starting it up again.  If  the user cannot switch to "Define your series manually" even after restart, then the only option would be to identify the relevant section in the source code (in the Source tab) and remove/modify it to break the looping effect. This is a cumbersome way around it and the problem can re-occur.

The best solution is to upgrade Jaspersoft® Studio to the latest version (or to at least version 7.8.0).

Related Articles:

JSS-2744: Unable to navigate between the option to define the series as an expression and define the series manually once series expression provided