Moses on DotNetSlackers

Inheritance and Associations with Entity Framework Part 1

mosessaur — Fri, 26 Sep 2008 11:44:00 GMT

In this multi parts series I'll explore how to build inheritance with Entity Framework showing 2 different approaches of inheritance in Entity Framework. Beside that I'll show how to build simple association between 2 entities and show how to provide custom code to retrieve other parts of the relation when inheritance is applied.

My plan not to exceed 3 parts as the subject is not that huge, it is just the demonstration with screen shots that will make the post large that is why I divided it to multi part. I am not good at screen casts beside I don't have a software license to produce one.

Username Availability Validator almost ready, the early demo

mosessaur — Mon, 22 Sep 2008 16:52:00 GMT

Few weeks ago Dave started the Advanced ASP.NET AJAX Server Controls book giveaway contest. And yesterday he announced that the control is almost completed, but the contest door is still open. So I thought to grape the bits and start testing it and build a simple sample. [View Demo]

The sample that I am going to demonstrate here will use ASP.NET Create User Wizard control with UserName Availability Validator. In this sample I'll show the important properties of this control as well as the current issues exist.

jBlogMvc Series Started! Keep tuned with Amr Elsehemy

mosessaur — Mon, 22 Sep 2008 16:51:00 GMT

Amr Elsehemey started to blog about ASP.NET MVC. He picked up a good subject to blog about; Building ASP.NET MVC Blog Engine using ASP.NET MVC and jQuery, he named it "jBlogMvc" Yesterday he posted his first post in the series, and myself I am waiting for the rest of the series as for it is going to be very interesting, because I have couple of ideas in mind.

He is going to explore the code and posting samples as he developing this simple blog engine. We have been talking about this subject for few days now, and really he has some cool ideas to present. Keep tuned with Amr, I am sure he is going to amuse us with some kicking posts just as he did in his Design Time Support post series.

Localization\Globalization Considerations and Tips

mosessaur — Fri, 19 Sep 2008 00:08:00 GMT

I've been worked with localization and globalization for a while now. During that period I faced issues and learned many things about the subject. Here I am going to share some of my own ideas and tips to avoid falling in certain issues. It worth to mention that I am talking from GUI point of view and not Application Data point of view.

Master\Detail with CollapsiblePanelExtender and edit detail with HoverMenuExtender using GridView

mosessaur — Mon, 08 Sep 2008 21:53:00 GMT

Last year, Matt posted a cool post about How To: Use the HoverMenuExtender for GridView RowCommands. Last month I got an e-mail from Justin Riggs, he was trying to combine to things. The usage of HoverMenuExtender as described in Matt's post, and the Master\Detail GridView with CollapsiblePanelExtender I posted about few months ago.

I thought to make a repost with few modifications to my sample, and produce another one using CollapsiblePanel and HoverMenu. You can read more about it here. Also you can view demo here

LINQ to Entities, Workarounds on what is not supported

mosessaur — Mon, 01 Sep 2008 21:32:00 GMT

In my previous post I talked about what is not supported in LINQ to Entities and made a simple comparison with LINQ to SQL show that these unsupported things works fine in LINQ to SQL.

In this post I am going to provide workarounds these things. First one will be wrapping the entities with Business Classes. And the second way will be using client evaluation which is converting to work with LINQ to Object. Before you go further, I recommend that you read my previous post to save your time.

LINQ to Entities, Workarounds on what is not supported

LINQ to Entities, what is not supported?

mosessaur — Mon, 25 Aug 2008 23:16:00 GMT

My new post about what LINQ to SQL support and not supported in LINQ to Entities. Different examples with source code. Check it out it might save you sometime searching and investiagting in some known unsupported things in LINQ to Entities.

Building On Demand Loading Master/Details using GridView, CollapsiblePanelExtender and ASP.NET Ajax PageMethods

mosessaur — Sat, 16 Aug 2008 01:51:00 GMT

Well, I'm done with this article that show in details how to build on demand loaded details from master data using GridView and CollapsiblePanelExtender control. Read the article.

Earlier this year Matt Berseth posted about Building a Grouping Grid with the ASP.NET 3.5 LinqDataSource and ListView Controls. Then I followed his post with 2 other posts discussing same idea but with different implementation:

Later I got few comments about how to implement that using AJAX, in order to display the details data on demand. At that time Dave was demonstrating the usage of jQuery AJAX on his post Using jQuery to consume ASP.NET JSON Web Services. So I came up with another demo to apply on demand loading of details data in my post GridView Grouping Master/Detail Drill Down using AJAX and jQuery.

Again I got few other comments on how to apply same approach, but using ASP.NET AJAX Control Toolkit CollapsiblePanelExtender control. So here I'm going to provide how to do that using CollapsiblePanelExtender and ASP.NET AJAX PageMethods call to apply on demand loading of details from the master data. You can read my article and view Demo here

Simple Static Tooltip Widget using jQuery.UI

mosessaur — Tue, 05 Aug 2008 10:43:00 GMT

Few days I posted a new simple jQuery.UI widget, Simple Static Tooltip Widget. In this post, I provide a toop tip with 3 examples.

The tooltip support 3 modes, show/hide tooltip on mouseover/mouseout or on focus/blur or manually using tooltip client APIs (show/hide).

One of the examples shows how to use the tooltip along with AJAX call using jQuery AJAX.

I hope you'll enjoy it.

Custom paging with LINQ to SQL.

mosessaur — Wed, 23 Jul 2008 09:31:00 GMT

Here is 4 posts that discuess custom paging using LINQ to SQL. Post include demo and explination with source code download. Building Custom Paging and Sorting Queries with LINQ to SQL and wrap it in Extension Method Efficient LINQ to SQL custom paging...(read more)

jQuery.UI Messenger\Outlook like message notification Widget

mosessaur — Wed, 23 Jul 2008 09:26:00 GMT

Few days I read Matt's post about building jQuery.UI ProgressBar widget . On that same day I followed his post and build one simple widget, Messenger\Outlook like message notification Widget . Check it out and I hope you'll like it. Demo and Download...(read more)

MosesOfEgypt.NET, My new domain and blog

mosessaur — Sun, 17 Feb 2008 14:00:00 GMT

In the last 2 days I was successfully moved my blog. My new blog is http://www.mosesofegypt.net . I installed BlogEngine 1.3 and started to migrate few of my old posts. Successfully did that. And officially started my own blog on my own domain. My host...(read more)

ASP.NET AJAX ComboBox

mosessaur — Mon, 07 Jan 2008 00:15:00 GMT

Back to April 2007 I posted about building an ASP.NET AJAX ComboBox. It was an attempt to rewrite a ComboBox Control I made to fulfil certain issues I faced with 3rd Party Controls. One of those issue was performance as most of 3rd Party control are rendering...(read more)

Download: The Visual Studio 2008 and .NET Framework 3.5 Training Kit

mosessaur — Thu, 13 Dec 2007 12:21:00 GMT

Few weeks ago Microsoft released a useful training kit for Visual Studio 2008 and .NET Framework 3.5 containing Labs, Demos and PPTs. The Visual Studio 2008 and .NET Framework 3.5 Training Kit includes presentations, hands-on labs, and demos. This content...(read more)

SQL Server 2005, Clean your Database Records & reset Identity Columns, all in 6 lines!

mosessaur — Sun, 09 Dec 2007 12:44:00 GMT

Well, I had a small issue regarding writing a script to clean a database we have and reset its identity columns in all tables. Although the database wasn't huge one (less than 100 tables) I had to trace relations to be able to delete child table's...(read more)