[Overview][Types][Classes][Procedures and functions][Index] Reference for unit 'Laz2_XPath' (#lazutils)

TXPathNegationNode.Evaluate

Evaluates the XPath expression.

Declaration

Source position: laz2_xpath.pas line 136

public function TXPathNegationNode.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.

See also

TXPathVariable

  

Base class used to represent an XPath variables and results.

TXPathContext

  

Represents the Context for an XPath expression.

TXPathEnvironment

  

Provides access to functions and variables available in the XPath environment.


Version 4.0 Generated 2025-05-03 Home