PPWIZARD is a free preprocessor for HTML, REXX, Visual Basic or any text files.
DataInfo() |
This is an inbuilt function function provided by PPWIZARD.
This function can be used to determine the existance of or return information about any data structures created using the #data command.
The function takes 1 parameters as follows:
EXAMPLE |
@@Data = "FRED" ;--- Make sure the DATA has 2 columns --- if DataInfo(@@Data) = '' then error('CustomActionData "' || @@Data || '" does not exist!'); @@ColCnt = DataInfo(@@Data || '.*.?') if @@ColCnt <> 2 & @@ColCnt <> 0 then error('CustomActionData "' || @@Data || '" should have had 2 columns, not ' || @@ColCnt || '!')