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IsDDX
Last update:
May 18, 2026
Description
Determines whether a DDX file exists and is valid, or if a string contains valid DDX instructions.
Return
True, if the value represents a valid DDX file or string. False, otherwise.
Category
True, if the value represents a valid DDX file or string. False, otherwise.
Syntax
IsDDX(path)
IsDDX(value)See also
History
ColdFusion (2018 release): Introduced named parameters.
ColdFusion 8: Added this function.
Parameters
Parameter | Description |
path | 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
<cfscript>
theDir=GetDirectoryFromPath(GetCurrentTemplatePath());
theFile=theDir & "sheets/Books_AddColumn.xlsx";
filetype = IsDDX(theFile);
writeoutput("Is this file of DDX file type: " & filetype & "<br>");
</cfscript>Output
Is this file of DDX file type: NO
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