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Boolean Functions

.NET Framework 2.0

.NET Framework 4.5
.NET Framework 4
.NET Framework 3.5

The XML Path Language (XPath) syntax supports Boolean functions that return strings or numbers, and can be used with comparison operators in filter patterns.

Boolean Functions

boolean	Converts the argument to a Boolean.
false	Returns false.
lang	Returns true if the `xml:lang` attribute of the context node is the same as the argument string.
not	Returns true if the argument is false, otherwise, false.
true	Returns true.

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