Adobe LiveCycle (Archived)

Bill95722 · 4/14/10

I have written a script to populate the items in a drop-down list but only if there is no entry already existing.

The problem I have is recognizing that the list is empty. I have tried to test for null (if dropdown.isNull = true) and testing the

rawValue = "" and a bunch of other things with no good result.

I'm sure this is easy but apparently not for me.

Thanks for the help!

Report · 4/14/10

Those commands are testing the value that is selected by the user. As they have not selected anything yet they will not have a value.

The command:

DropDownList1.items.nodes.length

Will give you the number of items in the DDlist. It is 1 based. Note that it will not count any items that were added to the dropdown by the user.

Paul

Report · 4/14/10

Those commands are testing the value that is selected by the user. As they have not selected anything yet they will not have a value.

The command:

DropDownList1.items.nodes.length

Will give you the number of items in the DDlist. It is 1 based. Note that it will not count any items that were added to the dropdown by the user.

Paul

Kevin_Cavallo · 4/14/10

Try: dropdown.items.nodes.length == 0

Bill95722 · 4/14/10

Both are correct! Thanks for the assistance!

What is initial value of an empty drop-down?