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Linked Drop Down Lists with a message box

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Former Community Member
Hello all -



I'm using Adobe Designer 7.0 and I've created a form with two linked dropdown lists. The second dropdown list displays certain options depending on what was selected from the first dropdown list. I based my dropdowns on the country/states dropdowns in the Interactive Purchase Order sample found at [installdir]\EN\Samples\Purchase Order\Interactive.



But I also want to display a message box (with a helpful explanation) when the second dropdown list is clicked before making a selection from the first dropdown list. Right now, a tone sounds when that happens. I think it would be helpful to provide an explanation (in a message box) instead of just the tone.



I tried this javascript on the second dropdown click event, but it displays the message box all the time, not just when the first dropdown was unselected:



if (dropdownlist1.rawValue == " ");

{

xfa.host.messageBox("Please choose a value from dropdownlist1 first.");

}



Can anybody show me how to display the message box only when dropdownlist2 is clicked and a selection has not yet been made from dropdownlist1?
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