I have just announced three new classes from my “Business Apps with DevExpress” series — Windows Forms, ASP.NET and Silverlight! You can find all the details here: http://www.oliversturm.com/dxtraining.html Special early-bird pricing for all three classes is available until July 31st, so hurry and sign up!

I’m replying to a post in the DevExpress XPO forum, where the question came up of how to use joins with XPO/LINQ and projection. Unfortunately, the forum system mangled my code snippets, so I thought I’d put the info up here as well.

Emilio Garcia wrote: I trying to create a linq query to retrive some objects, this is the query:

var
listadoSesiones = from u in usuariosjoin s in sesiones on u.ObjId equals
s.UsuarioIdwhere s.Activa == true
orderby s.FechaInicio ascendin ...

I’m thinking of a class for Silverlight components, later this year. It would probably be a two or three day class, covering the process of creating a Silverlight application with the help of the DevExpress components on that platform.

Right now I’m trying to gauge interest in the topic. If you think you might be interested in such a class sometime between October and December 2010, please let me know! I’m also interested in finding out what locations in the world would be most useful to you, …

I found a forum post today about binding an XPO datasource to the DevExpress DXGrid control. I had posted about this on my DX blog before, but that is more than a year ago — things are moving along quickly, and this post is very likely going to be outdated again with 2010.1… but that’s life, isn’t it :-)

So, I thought I should have another look and see what changed and what might be easier. So I started recreating the steps I went …

Exciting news: About ten days ago, I left my job at DevExpress, in order to start providing training and consulting services. And guess what — my main focus is… DevExpress! So this is new. If you are interested, have a look at my new site: www.oliversturm.com [LINK REMOVED].

For my consulting business, I am now also associated with Thinktecture, a really great company in Germany. Wow. It feels like there’s so much to say, but I’m done already. :-)

The first dates are now out for my new DevExpress training classes. You can find all the information here:

Business Apps with DXperience WinForms

Business Apps with DevExpress XAF

[LINKS REMOVED]

I hope you see you in June!

I just realized that I haven’t actually blogged about this: the ASP.NET product training for DevExpress that I’m doing! The reason I forgot is that I’ve been extremely busy preparing all the content and all that — a work in progress for a long time now, but still a surprisingly great effort to get done. Monday is the first training class in Leeuwenhorst in the Netherlands. Title: Business Applications with DXperience ASP.NET. When we first announced this (we’re partnering with John Martin’s …

The first European DevExpress training I announced recently was booked out so fast, it was almost unbelievable… so we set up a few more! We’re going to be in London, Frankfurt, Zurich and Paris early next year. Find the announcements here, or go directly to the detail page with the option to sign up. If the first class is any indication, seats may go quickly. There’s also an early-bird offer until November 26th, so better not leave it too long! …