## Tag Chooser

The tag chooser appears in several contexts: after invoking Attach in a text window, constructing a table in the TableMaker, and defining a query in the Query Builder. The purpose in each case is to display the structure of a class and allow you to select some part of it.

The layout of the tag-chooser closely resembles that in a text window with an important difference: the tag chooser shows all the potential tags and fields an object can have, not just the ones that have been used. By default ACEDB hides unused tags and fields when it displays an object; this allows objects to be arbitrarily complex yet keeps the display compact.

Note that the tag chooser is a blocking window. You must either pick an element or CANCEL/QUIT in order to continue using ACEDB.

### Menu items

- Cancel: cancels operation and dismisses the tag chooser window.
- Help: brings up this help.
- Print: prepares a Post Script file in ./PS which you can then print on your local laser printer.

### Buttons

- Attach...: this button doesn't do anything in the context of a tag chooser window.
- Quit: cancels operation and closes the tag-chooser.
- Tables...: shows only if tables are defined in wspec/table.menu.wrm for this class.
- Cancel: same as quit.
- Help: brings up this help.
- Print: prepares a Post Script file in ./PS which you can then print on your local laser printer.

### Using the tag chooser

Any tag or field highlighted in color in the tag chooser window can be picked. The first click selects the element and the second click actually picks it with respect to Attach, the TableMaker, or the Query Builder. If an element is shown in green (a "subtype") it can be double-clicked to reveal additional tags and fields.

Picking an element will close the tag chooser.

There are 3 kinds of elements to choose from in the tag chooser: tags, objects, or values. See the help for Attach, the Query Builder, and the TableMaker for information about how these tools interpret the choice you make in the tag chooser window.

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last edited: July 1994