Last week I did a webinar for DevExpress on XPO, their object/relational mapping product. It went well, I had fun, and around 60 or so people stayed till the end, so it can’t have been half bad! ;-) If you would like to see the webinar, it’s now up on the DevExpress site — click this link to watch it. I had a few requests for the samples I was using and writing during the webinar, so I’m making them available for download. Have fun!
Here’s the download: XPOWebinar201103.zip{filenam …
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 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before, but that is more than a year ago — things are moving along quickly, and this post is very likely going to be outdated again with 2010.1… but that’s life, isn’t it :-)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 …
I have recently published a few more XPO related posts on the new Developer Express community site. Previously I have sometimes posted XPO stuff on this blog, and these posts are now all eaten up by the DX site — so I thought I’d let you know if you’re watching this space and not the DX community site. Here are the posts I wrote:
This has been announced today: There’s a Developer Express site now for blogs written by people working for the company. This is it: community.devexpress.com I have published two posts there so far, related to the newest major release of XPO (6.1): “Session Management and Caching” and “My persistent classes are real classes — or not?”. …
I have just published this: Transactions and Units of Work
The next version of XPO (eXpress Persistent Objects) from Developer Express has finally been released. A list of new features is here. I’m currently working on a number of technical articles that will soon start to appear in the list on this page - look out for that if you’re into XPO. And if you’re not (yet), be sure to download a demo of the complete suite including XPO from here. …
Well, if I’m wondering about that every now and then, I’m sure some of the more loyal readers of my blog must be wondering the same thing, given the sparse nature of blog updates in recent months. The answer is, since I’ve started working for Developer Express, I’ve been doing that many different things that it’s just hard to keep track of them, and I haven’t found myself with the free time needed to continually update my blog. But I see that this is a Bad Thing and I’ll try to do something abo …