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 select box height  - This property is used to convert the select box to a List Box and displays the choices in a selectable list instead of the dropdown box.

 multiple  - This specifies that multiple values can be selected from the select box. The default value of the property is 'false'. If set to 'true' the select box will convert to a List Box.

Choices / Choice Values Properties

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For Rich Display Files the choices parameter values would ususlly usually be bound to a field allowing dynamic SQL selection.

To find more information on the choice selection criteria and choices parameter properties, view the Parameter Markers section here.

Blank Option

The blank option property allows you to provide a option containing blank text before any other choices from the database file are displayed.

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Both 'blank option' and 'blank option label' properties can only be used with a Database-Driven selection. These properties may also be assigned to a bound field. (Rich UI only).

Order By

Optional expression that allows you to specify which fields determine the order of the items in the list. This is equivalent to the ORDER BY clause used in SQL statements. The default behavior of this property is to show the items in ascending order. You can add DESC to this property to sort in descending order. For example:

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This will sort by product id (PRID) in descending order. 

Max Choices
The max choices property allows you to set the number of choices you will see from your database-driven selection. There is no limit to the number of choices you can show, however if there is no limit set the default is 10.

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The choices URL property allows you to use an external program to return your choice options and values by passing them using JSON formatting. A PHP script would be one example of a custom program  PHP scripts or Universal Display Files are examples of custom programs used to pass the values to your application. When using the choices URL property, all database-driven auto-complete properties are ignored.

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These are values returned from an auto-complete select box in a successful response from the external program:

{
     "success":true,
     "response":[
          {"text":"Dishes and Cups", "value":"18"},
          {"text":"Soaps", "value":"14"}
     ]
}

{
     "success":true,
     "response":[
          new Option("Dishes and Cups","18"),
          new Option("Soaps","14")
     ]
}

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This example is JSON information returned when the script encounters an error with an database driven auto-complete.

{
     "success":false,
     "errorId":"-204",
     "errorText":"CATEG in *LIBL type *FILE not found.",
     "errorText2":"SQLPrepare()"
}

If you are unable to get any information to display on your choice URL script you can use the showErrors() API to try and debug the reason the results are unable to display.

showErrors() API Documentation

Example of the showErrors() API displaying JSON error response example:

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