XPathError class

An XPathError exception can be thrown by various methods in the XmlDoc API. It indicates an error either in the syntax of an XPath argument to the method, or in the results returned by that XPath expression. The various read-only properties of an XPathError object (which can be set by the Catch statement) provide information about the failed operation.

An example of using the XPathError exception is:

%err Object XPathError Try %d:Print('a b c') Catch XPathError To %err PrintText {~} = {%err:Reason} PrintText {~} = {%err:Description} PrintText {~} = {%err:CharacterPosition} End Try

Since the expression in the above invocation of the Print method (a b c) is not a valid XPath expression, the above fragment will result in the following:

%err:Reason = SyntaxError %err:Description = Expect "/" for new step or "[" for predicate %err:CharacterPosition = 3

The methods in this class are listed at "List of XPathError methods".

This class is new in version 7.8 of the Sirius Mods.