Dynamic Expressions In Tags - MACROMEDIA COLDFUSION STUDIO 4.5-USING COLDFUSION STUDIO Use Manual

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The following table describes the PARAM tag for the PAGE tag.
Attribute
NAME
VALUE
REQUIRED
The following table describes the INPUT tag.
Attribute
NAME
PARAM
DEFAULT
REQUIRED
VALIDATIONMSG
LISTCONTENTS
The following table describes the NEXTPAGE tag.
Attribute
NAME
CONDITION

Dynamic expressions in tags

Any tag attribute may combine static, constant text with embedded dynamic
expressions that reference parameters or input controls. To embed an expression
within a text string, the following syntax is utilized:
$${ expression }
So, for example, to set the REQUIRED attribute of a parameter based on whether
another value was set, you would use the following syntax:
Description
Name of the parameter.
Value of the parameter.
True/False or YES/NO (can be the result of a dynamic expression).
Determines whether a value for the parameter is required. The
Wizard manager will not enable the Finish button until all required
parameters are entered.
Description
Name of the form control to which the
Optional. Name of parameter to which the
is the NAME attribute).
Optional. Default value for the input.
Optional. Is the input required?
Optional. A message to display to the user if the input is required and
a value is not entered.
Optional. If this is TCustomListBox or TCustomComboBox based
input, then a comma-separated list will be used to populate the list
with values.
Description
Name of a page to go to next.
Conditional expression that determines whether to go to the page. If
multiple NEXTPAGE tags are specified, then the first one to match a
CONDITION will be the next page.
INPUT is bound.
is bound. Defaults
INPUT