TURBU Tech

A lot of the UI design for the TURBU editor is based on data-aware controls bound to client datasets.  I was trying to build a new form this morning that required me to filter one of the datasets.  Problem is, that would break other things that expected it not to be filtered.  Well, that’s not such a big problem, because TClientDataset has an awesome method called CloneCursor that lets you set up a second client dataset that shares the first one’s data store, but with independent view settings.  So I used a cloned dataset, and immediately got an exception when I tried to run.  The control I was using couldn’t find the field.

Continue reading ‘Adding non-data fields to a client dataset’ »

I really loved when Delphi 2009 came out, how it fixed so many ugly problems in the Delphi IDE.  The stability issues and memory leaks that plagued D2006 and D2007 were greatly reduced.  And it just got better in D2010.

The tradeoff, though, seems to have been compiler stability.  Trying to do anything with Generics in D2009 before Update 3 came out was a nightmare, and even after, (and even in D2010,) there were still plenty of dark corners where you can end up with an Internal Compiler Error or linker error on something that, syntactically speaking at least, is perfectly cromulent Object Pascal.

Continue reading ‘How to break the D2010 compiler’ »