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Guide Section: GUI of an EASAP | EASAP Tree: User Interface Branch
CHOICE LIST is used to provide a list of choices to a User. There are four types of CHOICE LIST:
The type of CHOICE LIST is controlled by the Select Mode: parameter.
The STANDARD type is the default. It appears like a pull-down menu with only the selected item shown in the input box. With a STANDARD CHOICE LIST a User may select only one of the available choices. An example of a STANDARD CHOICE LIST is shown below.
A SINGLE SELECT CHOICE LIST appears differently from the STANDARD type in that more than one of the available choices can be visible inside the input box. However, like STANDARD a User may select only one of the available choices. The figure below shows an example of a SINGLE SELECT CHOICE LIST.
A DISTRIBUTED LIST CHOICE LIST looks just like SINGLE SELECT. However, users can now select multiple non-consecutive choices by holding down either the ‘Shift’ or ‘Ctrl’ key when clicking on their choices.
A SINGLE SELECT RADIO BUTTON CHOICE LIST appears differently from the previous types in that each individual choice is positioned next to a circular radio button. Like the STANDARD and SINGLE SELECT types, a User may select only one of the available choices. The figure below shows an example of a SINGLE SELECT RADIO BUTTON CHOICE LIST using the default orientation of 'Vertical'. The Orientation: parameter can be used to change this orientation to 'Horizontal'.
There are two methods for specifying the choices to be displayed to users in a CHOICE LIST.
Note: Leading and trailing spaces around an item in the comma-separated list in the Choices: parameter are ignored.
Tip: If you link a CHOICE LIST value to an Excel spreadsheet cell using the Range Reference: parameter, you may want to populated the Choices: parameter using a Delimited Object References read from the spreadsheet via a READ EXCEL ACTION.
|Choices:||Comma-separated list of items or a DOR containing a list of items to be shown in CHOICE LIST|
|Default:||Select default choice from list provided in Choices: above|
|Range Reference:||Select NAMED RANGE or existing RANGE REFERENCE to link value to cell in an Excel spreadsheet, only references to a single cell are accepted!|
|Visible Choices:||Comma separated list of items or DOR containing a list of items visible to user. Actual selected value of CHOICE LIST will evaluate to the value in Choices: at the corresponding location in list.|
|Label:||Text displayed to the left of CHOICE LIST|
|Select Mode:||Select type (default→STANDARD, SINGLE SELECT, DISTRIBUTED LIST, SINGLE SELECT RADIO BUTTON)|
|Orientation:||Specify orientation of Choices: in Radio Button mode (default→Vertical, Horizontal)|
|Number of Lines:||Sets number of visible lines in CHOICE LIST|
|Delimiter:||Character to act as delimiter in DORs in Choices: or Label: above. default→%|
|Tool Tip:||Text to be displayed as a tool tip|
|Show if:||Logical expression, if TRUE then list shown, if FALSE then list NOT shown|
|Enable if:||Logical expression, if TRUE then list enabled, if FALSE then list NOT enabled|
|Label Width:||Width in pixels of Label:|
|Style:||A reference to a USER INTERFACE STYLE that controls the visual appearance of this objects background|
|Input Style:||A reference to a USER INTERFACE STYLE that controls the visual appearance of this objects input area|
|Tab Index:||Establish an order of preference for <TAB> key navigation. Highest priority is the lowest number (default→1) and continues in ascending numerical order. Use -1 to disable.|
|List Separator:||A string to replace the comma character’s role as separator in the Choices: parameter. Only available if Select Mode: is set to DISTRIBUTED LIST.|