Ordering Lookup Entries

Description

Often you will want to display a list of values selected from a table. It is often desirable to specifically order these entries, instead of allowing them to display in record order or alphabetically. Here is a technique for solving this problem. This example uses a combo box on a form.

Select the control that will display the list, right click, and select Properties... .
On the Setup tab select "Combo Box" in the Field-Type list.
Display the Choices tab.
Select "Computed Automatically" in the Choices for control are list.
Select "Expression (that returns a CR-LF delimited list) in the Source list.
Enter an expression similar to the following in the Expression field.
```
table.external_record_content_get("", "", "")
```

In this particular example, the table contains the following values.

Sequence Field: Display Field
"a": 100
"f": 1000
"g": 1250
"h": 1500
"b": 200
"i": 2000
"c": 250
"j": 2500
"d": 500
"e": 750

When the user clicks the combo box, the following list appears.