TXPathNegationNode.Evaluate function

Member of TXPathNegationNodepublicIn unit Laz2_XPath

Evaluates the XPath expression.

Declaration

pascal

function Evaluate(AContext: TXPathContext; 
 AEnvironment: TXPathEnvironment): TXPathVariable
 ; override

Arguments

`AContext`	Context node for the expression.
`AEnvironment`	XPath environment for the evaluation.

Function result

Result for the evaluated expression.

Description

Evaluate is an overridden TXPathVariable function used to get the derived value for the XPath expression. Evaluate implements the abstract method defined in the ancestor class.

Evaluate uses the value in the AContext and AEnvironment parameters to calculate the numeric value for the expression.

TXPathNegationNode.Evaluate function

Declaration

Arguments

Function result

Description

See also