ZmemTable how to create composite key and find them?

[hamacker]

Hi All,

I´am trying to use zMemtable as Delphi Client Dataset, but it´s my first time with Zeos 8 Memtable, how Can I Create a dataset in runtime memory, create index and find key fields? I create this sample, but something is wrong, can you help me? Follow:

Code: Pascal  [Select][+][-]

1. // sample
2. zMemTable1.FilterOptions:=[foCaseInsensitive];
3. zMemTable1.FieldDefs.Clear;
4. zMemTable1.FieldDefs.Add('status', ftString, 3, False);
5. zMemTable1.FieldDefs.Add('seq', ftInteger, 0, False);
6. zMemTable1.FieldDefs.Add('filename', ftString, 1024, False);
7. zMemTable1.FieldDefs.Add('filepath', ftString, 1024, False);
8. //zMemTable1.CreateDataSet; // not exists CreateDataSet ?
9. zMemTable1.Active:=true;
10. zMemTable1.IndexFieldNames:='filename;filepath'; // is it right to use two fields?
11. if not zMemTable1.FindKey(['arq.exe', 'c:\temp']) then // there is no FindKey?
12. begin
13.   // not found ...
14. end;
15.  

In this sample does not exists zMemTable1.CreateDataSet, really not necessary?
In this sample I use zMemTable1.IndexFieldNames:='filename;filepath' to create a index with two fields(composite key), is it right?
in this example i try to lookup composite key according to IndexFieldNames method zMemTable1.FindKey(['arq.exe', 'c:\temp']), but there is not FindKey method, how to find them?

Any help will be welcome.