[FLEX-20957] Two-way data binding wipes clean first selected record in the model. Works fine then onwards. It's as though, blank fields in the view overwrites model before model has an opportunity to populate the view.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: Adobe Flex SDK Previous
• Fix Version/s: Adobe Flex SDK Previous
• Component/s: Data Binding
• Environment: Affected OS(s): Windows; Affected OS(s): Windows XP; Browser: Firefox 3.x; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 08/Sep/09 09:12
• Updated: 23/Jul/13 11:04
• Resolved: 22/Oct/09 14:53

Description

Steps to reproduce:
1. I've put up this sample application at: http://208.109.28.58:9080/OCNIssue/OCNIssue.html (view source enabled)
2. Sample application description: The application reads a simple XML data file (in the real app, it's a Spring-BlazeDS service) and renders the information. It allows user to add more data / update existing data. I'm using two-way binding for adding / updating data.
3. Hit the URL mentioned above
4. Click on the place holder image for any of the 3 data elements
5. Click on Update button

Actual Results:
You'll notice that the form is blank. The data, where two-way binding was used, corresponding to the selected raw has gone blank. The file is (VideoAddUpdateCore.mxml)

Expected Results:
The form should display the data in the model

Workaround (if any):
If you replace the two-way binding with Flex 3 type one-way binding in this component, it'll start behaving as expected! Replacing @ with a reverse binding using fx:Binding leads to the same issue described above.

Issue Links

• is related to: FLEX-33629 Is this the expected (and planned for the future) behaviour for a dropdownlist with its selectedItem two-way bound and set before the data provider?