Modify existing form Values - GetChoices() not working
问题 Why does '.getChoices()' not work for existing list items? I have the following code which gets an item in a form by it's ID, and I intend to update the values of the form item. However, when using the .getChoices() method, it fails with the error ' TypeError: Cannot find function getChoices in object Item. ' The item I'm fetching is a list item as required, and when a list item is created then fetched, it works normally as in the sample code listed here. My code is as follows: function