June 2001
Intermediate to advanced
620 pages
19h 29m
English
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Name
Field.GetChunk Method — (Versions 2.0, 2.1, 2.5, 2.6)
Synopsis
Setvalue = field.GetChunk(NumBytes)
The GetChunk method returns the specified number of bytes or characters from the specified field.
Arguments
-
NumBytes The
NumBytesparameter is a Long value representing the number of bytes or characters that you want to receive.
Returns
Variant
Description
The GetChunk method gets pieces of information from a Field object
that belongs to a Fields collection of an open Recordset object. If
the Arguments property of the Field object is set to
adFldLong, you can use the GetChunk method on that
field.
The first call to GetChunk retrieves the number of bytes specified in the method call, from the beginning of the field. All subsequent calls to GetChunk will return data starting from where the last call to GetChunk left off. If the amount of bytes or characters in the Field object is fewer than the amount that you requested, only the remainder is returned without padding for the difference.
When you read or write to another field within the same Recordset object (one that is not a clone of that recordset), ADO assumes that you are done retrieving chunks from that particular Field object. The next call to GetChunk will perform as if it were the first, retrieving the first number of bytes or characters that you request.
See Also
Field.Arguments Property
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.