ComboBoxes allow users to select from a list or attempt to add a new value.
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/components/ComboBox.html " the DropDownList control only lets the user select from a list of predefined items in the control. The ComboBox control lets the user either select a predefined item, or enter a new item into the prompt area. When the user enters a new item, the selectedIndex property is set to -3. Your application can recognize that a new item has been entered and, optionally, add it to the list of items in the control." Adding an event handler for the combobox "changing" event. Can do a test and prevent default if you'd like. It will roll the selection back to the previous valid selection. protected function onChanging(event:IndexChangeEvent):void { if (event.newIndex == -3) { event.preventDefault(); } } -Mark -----Original Message----- From: Maurice Amsellem (JIRA) [mailto:j...@apache.org] Sent: Wednesday, February 20, 2013 1:03 PM To: dev@flex.apache.org Subject: [jira] [Commented] (FLEX-28679) Can't type new custom selected item to replace existing custom selected item [ https://issues.apache.org/jira/browse/FLEX-28679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582380#comment-13582380 ] Maurice Amsellem commented on FLEX-28679: ----------------------------------------- Hi again, after some investigation, it seems that the simple following change fixes the issue: (testing that the selection is not a custom item [selectedIndex != CUSTOM_SELECTED_ITEM], before copying the selection back to the input text). ComboBox.as override mx_internal function updateLabelDisplay(displayItem:* = undefined):void { if (textInput) { if (displayItem == undefined) displayItem = selectedItem; if (displayItem != null && displayItem != undefined && selectedIndex != CUSTOM_SELECTED_ITEM) { textInput.text = LabelUtil.itemToLabel(displayItem, labelField, labelFunction); } } } What do you think? > Can't type new custom selected item to replace existing custom selected item > ---------------------------------------------------------------------------- > > Key: FLEX-28679 > URL: https://issues.apache.org/jira/browse/FLEX-28679 > Project: Apache Flex > Issue Type: Bug > Components: Spark: ComboBox > Affects Versions: Adobe Flex SDK Previous > Environment: Affected OS(s): All OS Platforms > Language Found: English > Reporter: Adobe JIRA > > Steps to reproduce: > 1. Press in the ComboBox > 2. Type 4 > 3. Press Enter > 4. Press Tab > 5. Press in the ComboBox > 6. Type 5 > 7. Press Enter > > Actual Results: > ComboBox changes text back to 4 > > Expected Results: > ComboBox should keep the text as 5 > > Workaround (if any): > none -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
