Recent content by FrankThynne

I have trouble mailing from SCO to a corporate mail server (running MS Exchange) on the same lan. SCO system: scosys Corporate mail server: mailsys Domain: firm.co.uk Sending user on scosys: user1 Addressee: user2@firm.co.uk If I configure mmdf on scosys so that it sends mail as from...

I have a SCO host "sco" in a domain "company.co.uk". I wish to send mail outbound using the host "nt" in the same lan. (nt runs exchange). I wish outgoing mails to originate from user@company.co.uk, not user@sco.company.co.uk. Most users in company.co.uk do not have...

I'm using TClientDataSet and TDataSetProvider (in the same app, at this stage). I'm trying to inspect the exchange of packets and OwnerData between those components. Looking at TCLientDataSet.XMLData works in some cases but sometimes fails (Delayed Fetch). I need to know exactly when XMLData...

I'm converting an application to use TClientDataset to cache updates. Generally it works well (although I get exceptions - eg write to illegal address - on exiting the app). The big bonus is that refreshing the dataset really works, including fetching data from the right rows of joined tables...

I'm experimenting with migrating from TSQL queries to TDatasetProvider and TClientDataset. The provider objects still look at TSQL queries. The data is in Paradox tables. Thus, whereas I previously had TSQL object (with TUpdateSQL object) TDataSource I now have TSQL object (with TUpdateSQL...

A colleague has heard from various Delphi developers that the Object Pascal with statement should be avoided. Why might that be? It seems to me to be an important structured statement.

Hi Steven and Steph, Once again you have responded to my problem, and thank you, and thank you Eric, too. Steven - no, I'm not doing anything else that could refresh the dataset. Even if I were, experience shows that I would have been repositioned at the start of the dataset (after updating)...

I'm using TQuery with a local Paradox table. The query's SQL selects on a number of conditions including ... and DateProcessed is Null The query is a live data set and I am updating it directly (not using cached updates). The program steps through the rows found and, after processing the...

Thanks Mike and Steve. I'm sure you're right. It makes no sense for readln and writeln to fail with disk files - and a lot of sense for Input and Output not to work in a GUI application. I suspect that the manual writer made an incorrect inference from the latter. I should have looked at my...

MikeEd: I quote from the Object Pascal reference manual: Note: Text-oriented I/O is available only in console applications—that is, applications compiled with the “Generate console application” option checked on the Linker page of the Project Options dialog box or with the -cc command-line...

No, I'm using Delphi Pro. You are right: Access just doesn't touch many of the areas that Delphi can address - and for those reasons it is a thoroughly admirable product (apart from the poor documentation). My remarks were based on database development. It has taken me months to produce a...

Are there standard ways of replacing the functionality of textfiles which work in console apps but not windowed apps? It's readln that I'd rather not re-implement!

I have a long experience of system programming, SQL databases and of MS Access. I find Object Pascal an enjoyable language to use, and I am enthusiastic about the power, performance and flexibility of Delphi. However, I have encountered many disappointments compared with Access and VB...

Hi Opp, I had a look at the articles and they, too, deal only with the overall drop-down width and not with the widths of the individual columns. For the moment I'll be using separate datasets for each combo and using field sizes to determine column widths. In future I'll try to adjust these...

Hi Glyn. Yes, I'm already using SQL rather than the whole table(s). I just hoped that I wouldn't need to have scores of different queries! As for the font size problem, I suppose you could adjust the size of the dataset columns at run time in proportion to the font size relative to the...