Re: TZF - KeyMaker with Virtual File

Hi,

It's quite straightforward to create an index for virtual files:

{ set this in code or you can use the object inspector }
TzVFile.KeyMaker := IndexFunction;

{ then in the implementation of the IndexFunction method: }
function TForm1.IndexFunction: string;
begin
   { this method should just return the field value
     for the field(s) which you want to index by }
   Result := TzVFile.Fields[3].AsString; { this will sort on the 4th
field }
end;

This index will not be saved to file if you use the SaveToFile method
to write your data to a DBF file.

Cheers,

Chris

----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Wednesday, March 26, 2003 11:32 PM
Subject: TZF - KeyMaker with Virtual File


> Hello,
>
> I did this once before but I can't remember how. I want to define my
own
> key for a virtual file. I am using Topaz 7.51 and have read the
addendum
> to the manual and am still confussed.
>
> Does anyone have a simple example of how to define my own key for a
> virtual file?
>
> Thanks.
>
> Phil Kidder
>

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