ASObjC panel not responding

Hey everyone,
I have a problem with a panel not responding. My program will loop through a list, and download the according xml data from a database. If only one item exists, it works no problem and downloads everything perfectly, but i have a problem when there are multiple results. A custom panel shows up, with all the possible options, and once the user has chosen the correct one, they can click on a button that is connected to a "finish downloading data" handler. the problem happens right here. when the panel shows up, the loop continues without waiting for the user to choose the correct option. I have tried adding a canContinue property with a repeat while loop and a delay command, but this makes so that the panel does not respond making the program freeze. So my question is: is there a way to tell it to wait until the user has chosen the correct entry??

As you have discovered, using a repeat loop like that (or any kind of routine that doesn't give the application's run loop time to handle events) will block the user interface.  Some code examples would help - what kind of panel is it and what are you using to show it?

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