Description
Determines
whether a DDX file exists and is valid, or if a string contains
valid DDX instructions.
Returns
True,
if the value represents a valid DDX file or string. False, otherwise.
Function syntax
IsDDX("path or string")
History
ColdFusion
8: Added this function.
Parameters
Parameter
|
Description
|
path or string
|
Pathname to the DDX file or a string of
DDX instructions. The pathname can be absolute or relative to the
CFM page that calls it and must be enclosed in quotation marks.
|
Usage
This function
returns False if the pathname to the DDX file is invalid, the pathname
to the DDX file is null, the DDX file does not conform to the schema supported
by ColdFusion, or the DDX instructions are invalid.
Example
<cfif IsDDX("TOCformat.ddx")>
<cfset inputStruct=StructNew()>
<cfset inputStruct.Doc0="title.pdf">
<cfset inputStruct.Doc1="Chap1.pdf">
<cfset inputStruct.Doc2="Chap2.pdf">
<cfset inputStruct.Doc3="Chap3.pdf">
<cfset inputStruct.Doc4="Chap4.pdf">
<cfset outputStruct=StructNew()>
<cfset outputStruct.Out1="myBook.pdf">
<cfpdf action="processddx" ddxfile="TOCformat.ddx" inputfiles="#inputStruct#" outputfiles="#outputStruct#" name="ddxVar">
<cfoutput>#ddxVar.Out1#</cfoutput>
<cfelse>
<p>This is not a valid DDX file.</p>
</cfif>