See the Change event for the tabnavigator. <http://groups.yahoo.com/group/flexcoders/message/74877;_ylc=X3oDMTJzcW1 1NGIwBF9TAzk3MzU5NzE1BGdycElkAzEyMjg2MTY3BGdycHNwSWQDMTcwNTAwNzIwNwRtc2d JZAM3NDg3NwRzZWMDZG1zZwRzbGsDdm1zZwRzdGltZQMxMTc5NzI1NTQ5> Navigating away from a Tab
Posted by: "Flexing..." <mailto:[EMAIL PROTECTED] Re%3ANavigating%20away%20from%20a%20Tab> [EMAIL PROTECTED] <http://profiles.yahoo.com/bhuvangupta> bhuvangupta Sun May 20, 2007 9:35 pm (PST) Hi All, I have a tab navigator each containing a form where user needs to fill some information. Now what I want to do is that if a user tries to move away from a Tab without completing or saving the information, I want to show an Alert (Changes will be lost if you navigate away from the page. Continue .. yes/no) and want to move to other tab only after use clicks Yes on this alert. How can I implement this in Flex ? One solution I thought of is: 1. Add a listener for the "change" event. 2. Store a flag for the tab. Switch it on when an edit is made on the form (how do I track edits!!) 3. On Tab change see if flag is on, show alert. If use clicks yes, just hide the alert else set the selected Index of the tab back to the old index. Now the above solution will work if the Tab Navigator is the only navigator but if it is a child tab navigator then I will have to track the tab change on the parent tab navigator as well... This will further complicate if there is Tree navigation , multiple ViewStacks etc etc ... if anyone has any suggestions on how to implement this better, it will be great. Thanks This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in this email are those of the author and do not represent those of the company. Warning: Although precautions have been taken to make sure no viruses are present in this email, the company cannot accept responsibility for any loss or damage that arise from the use of this email or attachments.
