Show a default prompt in Flex Combobox

At times, you may need to show a combobox, where none of the items should be selected by default and it should show something like ‘Please Select’. One way is to add this object also to the dataprovider, as the first item. But if you think that is a burden for your dataprovider, then Flex SDK provides you a built in option. To be frank, after working in Flex for more than 4 years, I am finding out this now only. πŸ™‚ You can use the prompt property of the combobox to show a default value. This will go away once you select one option, and you cannot bring it back. (I think so, but there are high chances that this is not true).

eg :

<mx:ComboBox id=”comboBox”Β  dataProvider=”{dataprovider}”
labelField=”name” prompt=”Please select an entry” />

That’s all guys. Flex Your Life. Cheers. πŸ™‚


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