Specifying Drop-Down List Values For Substitution - Symantec WINDOWS INSTALLER EDITOR 8.0 Reference

Windows Installer Editor Reference
Windows Installer Identifier
The installation author can enter text in the format of a Windows Installer
identifier to replace the default value. This text can contain ASCII
characters, digits, underscores, or periods, and must begin with either a
letter or an underscore. Example: Use this to allow a key to be changed or
entered into any table.
For information on the format types like the ones listed above, see Text Format
Types in the Windows Installer SDK Help.
Bitfield (Drop-down List)
The installation author can select from a drop-down list to replace the
default value. This list displays only the name you gave the value, not the
actual value. This is useful when you provide values that are not self-
explanatory. Use the bitfield type only on columns that are bit flags.
(Example: In the Files table, the Attribute column contains bit flags
representing the file attributes. Therefore, you can use the bitfield type to
make a file's attributes configurable. Possible choices for the installation
author could be for the file to be read-only; read-only and hidden; or read-
only, hidden, and vital.)
Additional fields appear when you select this option.
See Specifying a Bitfield for Substitution
Types in the Windows Installer SDK Help.
Integer
The installation author can enter any integer to replace the default value.
Example: Use this to make the size of a control or a dialog box configurable.
See Integer Format Types in the Windows Installer SDK Help.
Key Into a Table
The installation author can select a key into a table from a drop-down list to
replace the default value. (Example: Use this to let the installation author
change the directory for a component when adding a merge module to an
installation.)
Additional fields appear when you select this option.
See Specifying a Key for Substitution
the Windows Installer SDK Help.
Non-nullable
Mark this if a value is required for this configuration item.
Default Value
Enter the value that should appear on the Merge Module dialog box when the
configurable merge module is added to an installation. This is the value that can
be changed.
3. Click OK.

Specifying Drop-Down List Values for Substitution

When you add a configuration item to a configurable merge module as a text drop-down
list, you must specify values and the text that describes them. When adding the merge
module to an installation, the installation author selects from a list that displays the
descriptive text. See Text Format Types in the Windows Installer SDK Help.
Merge Modules and Transforms
on page 334 and Bitfield Format
on page 335 and Key Format Types in
333