Load and unload data
843854Nov 25 2002 — edited Nov 26 2002Hi,
maybe this newsgroup isn't appropiated to my question, however I didn't found response even in borland newsgroups.
Well, I have a JdbTable linked to a QueryDataSet. I defined a
QueryDescriptor to load results as needed.
It works well, when i am at the last line of my table, next results
are loaded.
My problem is that I would like to have the same mechanism for results
before the first line. I mean, when I am at the last line, I would like that the next results are loaded while the previous results are unloaded. And when i am at the first line of my table and i go up, i want load previous results and unload ones which are after.
For example, for a JdbTable that has 25 visible lines, it will be like
a window (of x lines) on the associated DataSet (maybe corresponding
to thousands of results). A window that could be moved up and down.
I hope I have been comprehensible.
Does anybody have an idea, is there a method to purge or unload data
from a dataset??
Any suggestion will be appreciated.