Gary's Blog - All Comments

re: Advanced XAF You Say?

Sebastia Prat i Pons — Sun, 07 Sep 2008 22:10:07 GMT

I'm absolutely agree with danim.

I'd like to add some other points:

- Advanced search forms with from-to fields (for DateTime, Strings, Entities, ...), not only filter line, way of creating advanced search forms in win and web

- How to define complex custom rules

- Localization of all controls, for instance, the DateEdit (i've downloaded and installed the localizated assemblies)

- Association (1-N), (N-M) inheritances, and how to overload

- Web: Insert Ajax panel and mix with ImmediatePostData

- WizardControl integration

- Reusing functional modules

- Web: real forms with 25 fields or more and optimize the size in KB (at least takes 400KB)

- Patterns, for a performance relaibility with 100.000 rows or more

Thanks Gary,

Sebastià

re: Advanced XAF You Say?

Jascha — Fri, 05 Sep 2008 17:54:02 GMT

Gary,

Oh no, it's that guy that keeps banging on about compelling demo applications again ;) Norbert makes a good point - how about the advanced series covers the process of developing the XAF reference application in nice bite-sized installments? Something to do with banquets, feasts or even Mr Creosote comes to mind...

FYI you may be interested to follow this thread community.devexpress.com/.../233711.aspx and suggestion www.devexpress.com/.../S92325.aspx to get a feel as to how popular (or not) this is amongst us rank-and-file customers ;)

Cheers,

Jascha

re: Advanced XAF You Say?

Linton — Fri, 05 Sep 2008 17:39:23 GMT

I suggest the "cookbook" approach leaves us with a lot of disperate (disconnected) samples. Many of the XAF early adopters have suggested DevEx XAF resources and the community should focus on creating an advanced, cohesive XAF Reference Application.

More Info:

community.devexpress.com/.../233711.aspx

and

www.devexpress.com/.../S92325.aspx

Linton

re: Advanced XAF You Say?

Norbert Kustra — Fri, 05 Sep 2008 09:49:11 GMT

For me would be more helpful then writing advanced stuff if you could provide an advanced XAF demo.

re: Advanced XAF You Say?

Geoff Davis — Fri, 05 Sep 2008 08:22:02 GMT

More topics on view controllers would be nice, finding it hard to understand for some reason.

re: Advanced XAF You Say?

Saif Khan — Fri, 05 Sep 2008 04:48:17 GMT

I meant ....XAF Secrets of DXmen from DXpress...to keep it original.

re: Advanced XAF You Say?

Saif Khan — Fri, 05 Sep 2008 04:42:55 GMT

or..... XAF Secrets of DeXmen from DeXpress

re: Advanced XAF You Say?

Saif Khan — Fri, 05 Sep 2008 04:38:57 GMT

Even better "Xcrets du Chef" series

re: The eXpressApp Application Framework, Project Mojave and Show-stoppers

Tim_Pau — Thu, 04 Sep 2008 21:31:02 GMT

Gary,

Our company loves the controls in our DevExpress Enterprise subscription. We are on the verge of creating a new application and are considering using XAF. The framework offers many compelling reasons for its use.

But I (like many others) can't figure out if XAF can build the application that we envision. I spent several hours today watching you and Oliver in your umpteen XAF videos. They were helpful...but I'm still left with the nagging question, "What if I spend hours building my new app only to find that XAF won't do what I need it to do?"

A demo application would be great *after* I embark on the development of the app in XAF. But right now, I just want to know what are the capabilities and limitations of an XAF app.

Here's an idea. Can you create a place where others can post screen shots of their XAF apps? Seeing some screen shots would help immensely. You at DevExpress could start by posting some screen shots.

Thanks,

Tim Pau

re: Advanced XAF You Say?

Tarik Souirji — Thu, 04 Sep 2008 13:57:57 GMT

How about a "Secrets du Chef" series

re: Advanced XAF You Say?

Christian Andersen — Thu, 04 Sep 2008 12:44:41 GMT

It should be called The XAF Gourmet cookbook.

re: Advanced XAF You Say?

danim — Thu, 04 Sep 2008 11:24:17 GMT

Agreed, but SOMEONE has to write advanced stuff. Event the videos are for rookies (quite funny -lots of jokes- but very basic)

The community really needs advanced tricks and black belt techniques. The projects are usually more complex than the "done before lunch" demo.

Maybe you'll need a place to get suggestions about new topics.

Some quick ideas:

Best practices in performance, security, advanced web customization, integration with (for example) Google maps, external webservices.

Topics on hosting XAF applications in hosters (godaddy, etc) in a medium trust environment. Implication on the database updates.

I'd love to have some documentation on scalability, how to deal with millions of records. Database tuning, etc...

Complex Inheritance, best practices on reusable modules, implement business valuators.

Good Patterns on how to display popups (every developer has to figure it out), print reports. Discussions about grids on client side or server side.

And very important: good stuff about localization: currencies, dates and times, encodings....

Look at common business needs and provide samples: which is the best way to implement a kind of state machine for a purchase order (for example). How to deal with states? How to cast a "potential customer" to a "real customer". How to export stuff in XML.

I don't know, I'm sure that with some creativity you'll be able to bring stuff that makes the difference to the community. You can do it. We're expecting it.

re: Advanced XAF You Say?

Michael Proctor — Thu, 04 Sep 2008 10:09:06 GMT

i would like to see information on a particular issue I have, there are three classes:

Purchase

PurchasePaymentAssignment

Payment

Now when I am in a Purchase I don't wish for a person to be able to create a PurchasePaymentAssignment (as they haven't got a payment in yet). I have overriden the newobjectcontroller so that is as a "new" button for Payment instead. The issue now comes that when in the new Payment when you create a PurchasePaymentAssignment and assign the payment to that purchase it doesn't appear in the open Purchase.

How do you handle this situation?

So in summary my suggestion is a XAF Wisdom Article on taking control of new detailview creation and handling events from that to say refresh a ListView or parent DetailView.

Just a suggestion.

re: Advanced XAF You Say?

Petros Amiridis — Thu, 04 Sep 2008 10:02:58 GMT

I suggest one of:

Advanced XAF Cookbook, Advanced XAF Recipies, XAF Recipies for Gurus

Petros

re: XAF Cookbook #2 – Change the Default Layout Position of a New Property

Gary Short (Developer Express) — Wed, 03 Sep 2008 08:24:03 GMT

Don't worry John, I'm sure we'll get to the layout designer :-)