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Syntax

DB_CHECK( cTable[, xcUdf ] )

Purpose

Validate GET input by restricting it to items in a table.

Arguments

     cTable -- table in which to search for the current READVAR().

     xcUdf -- if passed, code block or udf to execute if input is valid

Setup

GET in progress; _table is open and indexed on the key to search

Example

     LOCAL mAccount_No := SPACE( 5 )
     USE CUSTOMER
     @ 5, 5 GET mAccount_No ;
            VALID DB_CHECK( "CUSTOMER" )
     READ_IT()

Returns

If input is valid, the result of xcUdf (or .T. if xcUdf wasn't
defined) is returned, else .F.

Side Effects

None.

Artful Calls

MACRO, NOFINDMESG

Source File

AA_DBCHK.PRG