Apollo VCL Components > Apollo VCL Component Reference > TApolloTable > TApolloTable Methods

Declaration

function EvalString( sExpression: String ): String;

Description

Evaluates an xBase expression and retrieves the result as a string. The result of the xBase expression must be of type character.

Parameters

sExpression: An xBase expression that will evaluate as a string value passed as a literal string or as the contents of a string variable.

Return Value

The expression is evaluated and the result returned as a string.

Delphi Example

// xBase engine can display related data with a single line of code

sResult := ApTbl.EvalString('SERIAL->PROD + " " + PROD->DESC');

C++Builder Example

// xBase engine can display related data with a single line of code

sResult = ApTbl->EvalString( "SERIAL->PROD + ' ' + PROD->DESC" );