Author: admin

Meeting Dave and Adam -DevExpress MVPs

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For the Xamarin Saturday on August 24 I traveled to Toronto, as we all know from my last post. One thing I did not mention there because I wanted to have a special post just for this was that I had the opportunity and honor to finally meet in person Dave Hesketh and Adam Latimer current DevExpress MVPs.

I want to say thanks to both for making the trip from Orangeville. I have been following their work for a couple years already and my XAF POS Teaser includes code from their Free Modules.

We had a  great talk about XAF, XPO, Blazor, Xamarin and more. Continue reading →

CodeRush Shortcuts for XAF, Xamarin, ReactiveUI and Prism

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A few months back my great friend Joche Ojeda did  a post on a CodeRush Template for Xamarin forms bindable property and to quote him exactly:

“From time to time I realize that a lot of the stuff I’m writing is repetitive and complex, so that is the perfect time to create a new code rush custom template, behold the new template xfbp (xamarin forms bindable property).”

Well, behold some other templates for XAF, Xamarin, Prism and Reactive UI.

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Xamarin Developer Summit Impressions

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Last month,  I was in Houston at the Xamarin Developer Summit, a conference by the community and for the community, and I have to admit it was everything I expected and more. You read blogs about past events (Microsoft Build, Evolve, Ignite) but nothing compare to actually attending one.

It was good to meet a large number of community members that you follow daily on twitter, read their articles and actually ask them anything in person.

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Notes to Myself: Helpers.cs

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My next step is making CodeRush shortcuts for these classes but meanwhile I decided to have them here so I can refer quickly to them.

Update:

This is exactly the type of post that I always find and then I have to look into the source code to get the code I need.

https://www.devexpress.com/Support/Center/Question/Details/T825872/how-to-clone-an-object-example

I wish we had something like https://source.xafmarin.com for XAF.

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XAF ColorWheel Module For Win

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I had this post in private for a while now, one because I did not think that many people were interested and two because this was actually my first XAF module after taking the training from BITFrameworks a few years back.

Lately, I have been making public a few of other post so why not, let’s put this one out there as well.

The concept of modules in XAF it really interest me because we do a specific functionality once and that is it, we have it available for all future projects if you architecture it right.

Besides the training that I would always recommend, a great article about reusable modules is this one by Dennis. It goes over controllers, actions, localization and more.

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XPO Tips and Tricks (2) @ CurrentUser

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I am still amazed by the amount of neat tips, tricks and new (or sometimes really old) things I am still learning every day about XAF and XPO only by browsing the daily support tickets.

This time I stumbled upon a couple tickets:

https://www.devexpress.com/Support/Center/Question/Details/T214693/how-to-create-currentuser-parameter-instead-of-currentuserid

https://www.devexpress.com/Support/Center/Question/Details/T468768/is-there-a-way-to-pull-in-the-current-user-into-a-security-criteria-expression

And

https://www.devexpress.com/Support/Center/Question/Details/Q415990/criteria-current-user-property

Those ones made me revisit the docs about Free Joins in XPO and honestly I don’t know why I haven’t been using this more often because it is a beauty.

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XPO Tips and Tricks (1)

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The new XPO tutorials for ASP.NET Core MVC and Razor Pages with DevExtreme are out so of course I could not wait to test them out. I followed their instructions here and had them running in no time. And it was a beauty but that is not what this article is about. Going trough the source code I stumbled upon this:

unitOfWork.GetObjectByKeyAsync and it reminded me of a mini series I have been wanting to do for a long time. I had a lot of support tickets bookmarked it for this so I guess it is finally time. The article ORM Hate from Martin Fowler which I just recently re-read was also a clear trigger to finally get it done (or at least start it).

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How to Deploy a DevExtreme MultiChannel Application in Azure

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Not long ago I had to do a really simple project (Web and Mobile) -our focus is web in this article- that its only function was to modify some admin settings in our main application database. We had already an Odata Service running so it made sense to use a DevExtreme MultiChannel Application. As stated in the documentation, using the project template wizard you can create both a multi-channel solution and generate views for the entities from the specified OData service. So I was up and running in no time.

My issue started when I decided to deploy my web (desktop) channel to Azure. Looking for the answer I came across this ticket from DevExpress, it pointed me in the right direction but I still spent a decent amount of time until I finally made it work. A few days back someone in our facebook group had the same exactly question and then this article was born.
 
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XAF POS Teaser

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Article coming soon.

Some interesting points:

  • Barcode field gets auto-focus to account for scanning capability.
  • On Screen Keybooard gets triggered every time an editable field is focused.
  • Touch UI action automatically increase size of controls and distance between some of their elements.
  • The size and distance are increased according to the TouchScaleFactor value.
  • Font Size selection thanks to Llamachant Framework Modules.

Hope you guys like it. XAF out!