----- Original Message -----
Sent: Wednesday, March 10, 2004 5:59
PM
Subject: RE: [DUG] ClientDataSets as
In-Memory Tables
Paul
We've done this many times - I don't have the code with me ATM, but its
in the form:
function TForm1.GetDataset(AOwner: TComponent):
TClientDataset;
var
tbl : TClientDataset;
fld :
TField;
begin
tbl := TClientDataset.Create(AOwner);
with tbl.FieldDefs.AddFieldDef do
begin
Name
:= 'FirstField';
DataType := ftInteger;
end;
with tbl.FieldDefs.AddFieldDef do
begin
Name := 'SecondField';
DataType := ftString;
end;
tbl.Open;
.....
end;
You
can also set up the ClientDatasets in the IDE - just set up the FieldDefs
only, then Open.
If
you need more I can send you a working demo tomorrow.
Cheers
Stephen
How do I setup a ClientDataSet as an
In-Memory Table ?
I have placed a TClientDataSet in the
DataModule there is no Provider and no File.
I have tried creating
FieldDefs, Persistant Fields, and both.
I want to be able to populate the Fields (many
rows) of the ClientDataSet - Do some heavy processing - then just clear
it.
I do not require any storage for the
Data.
The problem is that when I set the DataSet
Active - It blows up because there is no provider.
I have been told that this can be done - I am
starting to doubt it though...
Regards
Paul McKenzie
Analyst
Programmer
SMSS Ltd.
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