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Dropdown Boxes and Export Values - I am lost

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alayton View Drop Down
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Joined: 19 Sep 2014
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Post Options Post Options   Quote alayton Quote  Post ReplyReply Direct Link To This Post Topic: Dropdown Boxes and Export Values - I am lost
    Posted: 23 Sep 2014 at 4:31am

So, I am way too old not to grasp this but...

I presume that the 'Item' and the 'Export Value' are in essence paired values, meaning that I should easily be able to get and set the export value much as I do the value. For example: this.getField("DropdownBox.1").value gives me the UI visible string of the currently selected item. Similarly, I would expect something like this.getField("DropdownBox.1").Exportvalue to allow me to get the item's export value.

I fully understand that such a question only stresses my being a novice but I truly need some help here in the most simplest of ways to accomplish this.

I am doing this inside a function that is called from the dropdown  box's 'Custom keystroke script'.

Thank you for any help you can offer.


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aandi View Drop Down
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Post Options Post Options   Quote aandi Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2014 at 11:39am
Don't presume anything; assumptions are the mother of all programming errors. What you need to know should be in the JavaScript API Reference.

Clearly, combo boxes do have export values and display values. The questions therefore have to be (a) does JavaScript offer me access to both sets of values (b) which of these is the "value", the normal thing to be worked with (c) how do we get hold of the "other".

Well, which is the value? The answer is "it depends" (and I'm not sure without careful reading). In some kinds of event, the value is the "face value", while in other events it is the "export value". Field.value and Event.value may not be the same; read the description of Event.value.

A combo box is populated using Field.setItems, which allows you to set, for each item, its regular value and export value. The documentation for that gives other methods which can, by searching, be used to go from one to the other. 
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