Dynamically eveluating the IsXmlElem function
I was having problems dynamically evaluating with the IsXmlElem function:
#IsXmlElem(xml.abc.def)#
worked fine, but:
<cfset a = "xml.abc.def">
#IsXmlElem(a)#
#IsXmlElem(a)#
didn't. To make this work you need to:
<cfset a = "xml.abc.def">
#Evaluate("IsXmlElem(#a#)")#
#Evaluate("IsXmlElem(#a#)")#
Notes:
* The setting of the a variable can be dynamic. This is great if you have a list of elements and are looping over them to check for their existisnce.
* This also works of IsXmlNode and IsXmlAttribute.
In the first example you are referencing a variable that points to an XML document; in the second you are referencing a variable that points to a string value. As such, the functions are working as I would have expected.
This probably won't work:
#IsXmlElem("xml.abc.def")#
because you're referencing a string, which is not an XML Element. But, this will:
<cfset a = xml.abc.def>
#IsXmlElem(a)#
Because you are referencing an xml object (not a string version of its name).
If you're in a situation where you must be using a string, then evaluate is definitely the way to go.
Out of curiosity, can you quantify this with a more detailed example?