If your XML is static, then you can embed it and show values in a Combo Box,
and edit your design.xml file to show combo box. but if you want to fetch
this xml from server, in design mode, I doubt if there is a straight way to
achieve this. What I can think of is, add a handler for initialize event and
then load your xml in initialize and put a timeout/delay for some seconds.
But it is not the right way
Actually the XML file is a local file that should be available from the PC running Flex/Flash Builder. The XML file will be different from one project to another that uses the custom control. I could possibly add the XML file to my project in a specific location, if that would make it easier. This way it could check for the XML files existence and use it if available. Otherwise the property would have to be entered manually. Does the fact that the XML file is available locally change anything? Can you point me to an example of how to provide an initialize handler that works to change a design time property?
FYI, the XML file mentioned above is for a turnkey system(server) that is running on an embedded controller/server. Each server is very specific to the customer and it would be great to leverage the Flex/Flash Builder as an IDE for contructing the UI that will be the web control for the system. We are evaluating if this is the right tool for this purpose.