Dropdown event onSelect (get previous ID)

[joo_ferreira]

Hi all!

Another Dropdown question

Does anyone know how i can access the old value a dropdown box? I have an event onSelect that receives the current id of the dropdown box, but i want to get also the previous value.

It's some kind of validation, if the user enters an invalid option in the dropdown, the last value will appear.

Dropdown values are a IModifiableSimpleValueSet, and the dropdown is in a table.

Greetings,

Joã

[Former Member]

If you need this functionality, you have to store the selected key additionally in another context attribute under the table's data source node. After the selection of another list item and a server roundtrip, the context attribute to which the "selectedKey" property is bound will always contain the new selected key and the old selected key is overwritten.

Armin