RE: TZF - VFile at Runtime

"Randall H. Carpenter" <[email protected]> Mon, 10 Mar 2003 09:55:20 -0500

Newsgroups	gmane.comp.lang.delphi.topaz,gmane.spam.detected
Message-ID	<[email protected]>

To create a temporary in-memory file at runtime using TzVFile, use the following code:

  VTempDBF.DbfFields.Clear; { clear the field list }
  VTempDBF.Dbffields.Add('FIELDNAME1,N,3,0');
  VTempDBF.Dbffields.Add('FIELDNAME2,C,3,0');
  VTempDBF.DbfFields.Add('FIELDNAME3,D,10,0');
  VTempDBF.DbfFields.Add('FIELDNAME4,L,1,0');

  VTempDBF.DbfFilename := 'YOURFILE.DBF';

  VTempDBF.Active := TRUE;

The Add method takes the following paramaters:

  Fieldname, FieldType, FieldLength, Decimals

where fieldname is your choice.  FieldType is N (numeric), C (character), D (date), or L (logical).  FieldLength is your choice without Dbase limits for numeric and character fields, 10 for date fields, and 1 for logical fields.

Hope this helps.

Randall H. Carpenter



-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Friday, March 07, 2003 2:38 PM
To: [email protected]
Subject: TZF - VFile at Runtime


Is there a way to create a new VFile at Runtime with Topaz 7.51. From 
the documentation, it looks like it can only be created at design time 
from an existing .dbf file. Is there a way around this? Am I not 
understanding the manual properly.

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