Zeoslib Portal

Hi friends! In the last(?) row of the dataset, the lookup values disappear if the dataset enters insert or edit mode. :x It is quite a frustrating bug. I belive it is a regression since 6.5.1, which has no such problems. The lookup fields are connected to simple integer ID fields, no smallints aroun...

Hi! There are TDatabroker components, you are right. The problem is that they do not transport the data in the native (buffer) format, but they do a transformation, which is quite time-consuming. In order to achieve better performance I need to split the native component itself... I can do it myself...

Your ZeosLib DBO Version: 6.5.1 The IDE you are using: Delphi Version (and maybe patchlevel) of the IDE: The database you are using: Firebird Version of the database: 2.0 Used protocol: tcp/ip [hr] Error description and post Hi friends! I am interested in cutting the ZDataSet into two parts, and co...

Hi Friends! I finished the two components, and the link editor. If you like it, draw icons for them, and modify them as you like it, but don't forget to modify the editor too!! Take a look at it, it is really simple. Best regards, Zsolt Balanyi P.S: As I got involved with property editors, if there ...

Hi all! I investigated the possibilities of making a query and a read-only query based on two different base classes, but that is not possible if I want to use the same property editor. If you want to include my contribution, you will need to include my code to ZAbstractRODataset, and then inherit t...

Hi friends! I will remove the old link, and probably rename the property I added, and write a small explanation on how to use it. For the icon I think someone could draw it, and it could be a TZQuery table with 3-4 arrows pointing to it. I can not draw it, I am a programmer, not an artist :( Hopeful...

Hello friends!

Here is the new version of the component and the demo. Install them as the previous version, just add the visual editor to your package too. In Object inspector edit the ParamLinkPairs property.

Best regards, Zsolt Balanyi

Hi friends! So, here is the first version of the component, and an example on it, with layers, areas and objects. Install the component, and create a database based on the SQL script you find in the DB directory (or use the firebird database you can also find there). In the demo setup the connection...

Hello friends! A first version is ready. Where and how should I upload it? I belive it should use a bit more fancy mechanism for setting parameter values, but the basic idea works fine. Maybe somebody more experienced could guide me to the right solution. TZMultiMasterQuery = class(TZAbstractDataset...

Hi! After thinking a bit on the design, it really doesn't make any sense to combine the two approaches, as the multiple masters approach CONTAINS the services offered by the single master approach, so a single new class will do the job just fine. The combination was a kind of idea for supporting leg...

Hi friends! Well, you convinced me, I will first create a totally new class, so that there will be no confusion. If folks will like it, there is still a possibility to combine the functionalities into the existing classes. I will send you in a few days a demo if everything goes fine, depending on th...

Hi folks!

Well, on the problem of the properties there is a simple solution, namely we can use them mutually exclusive. If one is set, the other is deleted. So simple.

Zsolt

Hi!

Yeap, you got the problem, but the solution is what we are talking about
Let's consider the following query:
SELECT * FROM OBJECTS WHERE
LAYERID = :LAYERID AND AREAID = :AREAID

now, how would you solve this query to follow both the actual layer and area?

best regards, Zsolt Balanyi

Hi friends! Ok, here's an example: two master tables: LAYER(LAYERID, DESCRIPTION, .....) AREA(AREAID, DESCRIPTION, .......) detail table: OBJECTS(OBJID, LAYERID, AREAID, DESCRIPTION, ....) There are multiple layers on the map, and there are some areas on them. We might want to have a dataset that co...

Your ZeosLib DBO Version: 6.1.5 The IDE you are using: Delphi Version (and maybe patchlevel) of the IDE: 7 The database you are using: Firebird Version of the database: 1.5 Used protocol: TCP/IP [hr] Error description and post Hi friends! I have been using ZeosLib for more than two years now, and I...