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All posts by : Dan Wahlins WebLog

LINQ and Lambdas and Sprocs....Oh My!

There's a lot of great stuff in .NET 3.5 and several different ways to work with LINQ technologies such as LINQ to SQL.  I'm currently putting together some demonstration code for a talk I'll be giving at DevConnections in Orlando and showing how LINQ, Lambdas and LINQ with stored procedures c......

Simplifying ASP.NET ListView Control Templates

I've been working with the new ListView control in ASP.NET 3.5 combining it with LINQ and Lambda expressions and was finding myself duplicating a lot of code between ItemTemplate and AlternatingItemTemplate templates (I'll be posting the sample application that demonstrates using LINQ, Lambdas and ......

My Latest Silverlight Articles

Over the past few months I've been writing articles for the .NET Insight insight newsletter covering various ASP.NET AJAX concepts.  You can read those article here.  I've wrapped up that series and have started writing about Silverlight 1.0.  Each week a new article will be publishe......

My Latest Silverlight Articles

Over the past few months I've been writing articles for the .NET Insight insight newsletter covering various ASP.NET AJAX concepts.  You can read those article here.  I've wrapped up that series and have started writing about Silverlight 1.0.  Each week a new article will be publishe......

New Video: Integrating Silverlight and ASP.NET AJAX

I gave a talk at Desert Code Camp toward the end of 2007 that discussed how Microsoft's Silverlight product could be integrated with ASP.NET AJAX to dynamically display albums obtained from an Amazon.com Web Service.  It's taken awhile to get the video posted, but it's now available.  The......

Upcoming .NET Courses in 2008

I've had several people here in the Phoenix area and others I've met at ASP.NET Connections conferences ask when I'll be teaching specific .NET classes in 2008 and my standard reply has been "I'm not sure at this point".  We have things scheduled out past June now so here's the information for......

Great Gift Idea: Etch-A-Sketch USB 2.0 Adapter

Tired of losing your Etch-A-Sketch work?  Wish you could reload existing drawings onto your Etch-A-Sketch with little to no effort just like in Toy Story?  Get the high speed Etch-A-Sketch USB 2.0 adapter created by Dan Dominguez from eBay (I had the privilege of meeting Dan in my ASP.NET......

ASP.NET 3.5 Extensions Preview Released

For those of you that like to stay on top of the latest technologies, Microsoft just released the ASP.NET 3.5 Extensions Preview today which provides the following new functionality (quoted from the http://www.asp.net Website): ASP.NET MVC ASP.NET MVC provides model-view-controller (MVC) support......

Visual Studio 2008 Released for MSDN Subscribers

It's here!  Visual Studio 2008 is now available to download for MSDN subscribers.  Lots of great stuff is available in Visual Studio 2008 and .NET 3.5 such as: Language Integrated Query (LINQ) LINQ to SQL Designer New ASP.NET 3.5 controls such as the ListView and DataPager ......

Scott Guthrie Speaking in Phoenix on Silverlight

If you're available Wednesday, June 27th I highly recommend taking the time to attend Scott Guthrie's presentation.  If you've never heard Scott speak before he's extremely knowledgable and fun to listen to so I can gaurantee you'll enjoy it.  Here's more information about the event ......

New Column on ASP.NET AJAX, Web Services/WCF and Silverlight

Over the past month I've been writing articles for a new column in the .NET Insight and Web Design and Development Insight newsletters published by 1105 Media (a parent company for several media groups) that covers ASP.NET AJAX, XML Web Services/WCF, and Silverlight.  The articles are des......

Book: Professional ASP.NET 2.0 AJAX Released

Matt Gibbs and I recently released a new book for WROX titled Professional ASP.NET 2.0 AJAX that covers all the topics you need to know to build robust ASP.NET AJAX applications.  Matt is a development manager for ASP.NET (and led the ASP.NET AJAX team) and I've had the opportunity t......

DinnerNow.net Sample Application Available

Microsoft's .NET & Connected Systems Evangelism team recently released all of the source code for their DinnerNow.net application.  If you're interested in learning .NET 3.0 technologies as well as the new 3.5 stuff coming out, this is a great application to run and explore.  J......

Video: Working with ASP.NET AJAX UpdatePanel Properties

This video tutorial demonstrates the affect the UpdatePanel's UpdateMode and ChildrenAsTriggers properties have on updating a panel's content.  The video starts out by discussing the UpdateMode property and shows why you may want to know about it when using multiple UpdatePanel control......

Get Started with ASP.NET AJAX

 I recently finished up a new article discussing how to use ASP.NET AJAX Extension controls to AJAX-enable new or existing Websites quickly and easily.  It's now available on the Simple-Talk.com Website for those that are interested in getting into AJAX more.  Code samples t......

AlbumViewer Application Now Runs with Silverlight and ASP.NET AJAX

With the release of Microsoft's Silverlight Beta 1 I decided to update the Amazon.com AlbumViewer application that I originally created using WPF/E and ASP.NET AJAX back in December.  It was a fairly simple upgrade overall (I had to change a few scripts here and there) and because Silverli......

Creating Custom ASP.NET Server Controls with Embedded JavaScript

I did some consulting work recently for a company that had a lot of JavaScript embedded in pages that was used used to perform advanced client-side functionality and make AJAX calls back to the server.  The company needed additional team members to be able to contribute to the application......

JavaScript Intellisense and Documentation in VS.NET Orcas

Microsoft's Betrand Le Roy just put together a great post on how to document JavaScript code in VS.NET Orcas.  By adding documentation comments, users of your script will get nice intellisense as they type and use JavaScript classes, methods, etc.  Nice stuff that we've all wanted......

Simple ASP.NET 2.0 Tips and Tricks that You May (or may not) have Heard About

ASP.NET 2.0 is an awesome framework for developing Web applications.  If you've worked with it for awhile then that's no secret.  It offers some great new features that you can implement with a minimal amount of code.  I wanted to start a list of some of the most simple ......

WPF/E Officially Named "SilverLight"

In case you haven't heard, the software plugin formerly known as WPF/E is now officially going to be called SilverLight.  More details can be found at http://www.microsoft.com/silverlight/ including a pretty cool video.  If you haven't seen what SilverLight is or what it can ......

XSLT 2.0, XPath 2.0, XQuery and WSDL Support in XMLSpy 2007

I've always been a fan of Altova's XMLSpy and have used it since it was first released.  Their release of XMLSpy 2007 doesn't disappoint as it adds support for several things that are of particular interest to me such as XSLT 2.0 and XPath 2.0, XQuery and enhanced WSDL editing.&nbs......

AJAX Hacker Attacks - Cross Site Request Forgery

I was reading an article that was posted yesterday about various AJAX security vulnerabilities that was pretty interesting.  It documents how many AJAX frameworks allow GET requests to hi-jack JSON messages and process them as desired.  This is a big deal since any sensitive informat......

Video: Calling Web Services Asynchronously with ASP.NET

In this video tutorial I walk through the fundamentals of calling Web Services asynchronously from an ASP.NET page using the .NET 2.0 event driven model exposed by Web Service proxy objects.  There are several different options for calling Web Services asynchronously including polling, callbac......

ASP.NET Connections Orlando 2007 Talks

I'm in Orlando this week speaking at the ASP.NET Connections conference and wanted to get the slides and samples from my talks posted for those that attend and for anyone else who is interested.  I'll be speaking on the following topics:ASP.NET AJAX, XML and Web Services How it all Fit......

Video: Binding Data to ASP.NET 2.0 Server Controls

In my last blog entry I wrote about how to bind data to different ASP.NET 2.0 server controls using the SqlDataSource, XmlDataSource and ObjectDataSource. I also discussed how controls could be embedded in other controls such as the DetailsView using templates and binding expressions. Based upon th......

Binding Data to ASP.NET 2.0 Server Controls

I'm teaching the ASP.NET 2.0 Programming class at Interface Technical Training this week and had a few people ask questions about how to embed controls such as a DropDownList into a DetailsView and use it while in edit mode.  The sample code below demonstrates one way of doing this without......

ASP.NET AJAX and Sys.Debug

ASP.NET includes tracing functionality that can be used to track different issues in an application.  It can be used to easily inspect errors that have occurred, check sessions IDs, cookie values, ViewState size, server variables plus a lot more.  The ASP.NET AJAX client script library al......

Video: Creating Web Services with the .NET Framework

I've had several people email me and ask if I could do a video covering the fundamentals of creating a Web Service using the .NET framework.  Since I enjoy working with Web Services I decided to make some time and do that. The video discusses how to create a Web Service from scratch b......

WPF/E and ASP.NET AJAX AlbumViewer Application Now Live (Updated)

--  2/25/2007: Added user driven carousel movement to the albums  --Back in December I released a sample application that demonstrated how WPF/E and ASP.NET AJAX could be integrated to view albums returned from an Amazon.com Web Service in a simulated 3D type view. I finally made som......

List of AJAX Automated Testing and Debugging Tools

While there are a lot of testing tools out there to look for bugs, test a Website's scalability and perform unit tests, precious few seem to handle automating the testing of AJAX applications.  As a result, I wanted to start a list of tools that support automated testing of AJAX appli......

Passing an Array of Values to a Stored Procedure in SQL Server 2005

I've always dreaded handling the situation where I need to pass an array of values to a stored procedure.  Yeah...there are several ways to do it, but none of them are really pleasant IMHO.  I came across the following post by Jon Galloway that puts to use SQL Server 2005's XML ca......

Free ASP.NET 2.0 Webcasts and Labs

Microsoft recently announced several different free Webcasts and virtual labs for those interested in learning to develop ASP.NET 2.0 applications.  Available tracks include ASP.NET 2.0 for existing ASP.NET developers, ASP.NET 2.0 for PHP developers, ASP.NET 2.0 for JSP developers and ASP.NET ......

Video: Creating an N-Layer ASP.NET Application (Updated)

In this video tutorial I walk through the fundamentals of creating an N-Layer ASP.NET application.  What's "N-Layer" you ask?  N-Layer can be interpreted many different ways, but I generally use the term to mean separating presentation, business and data code into individual......

ASP.NET Connections Conference Coming in March

 I'm going to be speaking at the ASP.NET Connections conference March 25-28 in Orlando, FL which is one of the best conferences I get to attend so I'm always excited about it.  If you've never been, it's a conference that will give you a lot of great material, ex......

Video: Viewing Albums with WPF/E and ASP.NET AJAX (Updated)

-- Updated for ASP.NET AJAX Final Release --So many technologies and so little time!  It's hard to keep up with all of the great new technologies being released but over the holiday break I made some time to play around with the December CTP of WPF/E from Microsoft.  I was r......

ASP.NET AJAX Version 1.0 Released

Microsoft just released ASP.NET AJAX version 1.0 at http://ajax.asp.net!  Get it while it's hot! :-)  If you're new to ASP.NET AJAX and want to get started quickly, Microsoft has published several different videos.  I have several here on my blog as well.Scott Guthrie posted ......

Video: Viewing Albums with WPF/E and ASP.NET AJAX

So many technologies and so little time!  It's hard to keep up with all of the great new technologies being released but over the holiday break I made some time to play around with the December CTP of WPF/E from Microsoft.  I was really interested in WPF/E when I first heard about it ......

Understanding ASP.NET AJAX Web Service Proxies

Proxy code plays an important role in sending and receiving messages to and from Web Services.  If you've worked with Web Services before in .NET, Java or other programming frameworks then chances are you used a client-side proxy to call a Web Service.  With .NET, proxies are gen......

WPF/E Pad

Microsoft's Mike Harsh just released an updated version of his WPF/E Pad that makes it easy to quickly test out XAML using the WPF/E viewer.  Pretty cool stuff!  Since I'm a big fan of XML I'm really excited about what WPF/E offers.My good buddy Simon Allardice (who also works......

Video: Edit XML Data with the XmlDocument Class

In this video tutorial I walk through how to use the XmlDocument class to edit XML.  Click the link below to view the video.  View Video...

Video: Parsing XML with the XmlDocument Class

In this video tutorial I walk through the fundamentals of using the XmlDocument class in .NET to parse an RSS feed and display results.  Click the link below to view the video.  View Video...

Video: Calling Web Services using ASP.NET AJAX and JavaScript

ASP.NET AJAX provides several different ways to call Web Services including JavaScript, XML Script and the AutoCompleteExtender. In this video tutorial you'll see how to call Web Services using JavaScript. Topics covered include creating a Web Service, applying the ScriptService attribute, crea......

Video: Debugging ASP.NET AJAX Applications with VS.NET 2005

Debugging is a key skill that every developer has to learn to become productive. However, how do you debug ASP.NET AJAX applications and client-side JavaScript? In this video tutorial I walk through a few required steps to enable debugging and show how to use tools such as the Script Explorer to si......

ASP.NET AJAX, Windows Mobile 5, Bluetooth GPS and Virtual Earth

I've been playing around a lot lately with a great set of components from http://www.gpsdotnet.com that allow GPS functionality to be integrated into .NET applications.  The samples included with the GPS components were awesome and made it simple to do what I wanted (since they did most of......

Video: First Impressions on the Windows Vista RTM

After backing up my files (and checking things twice), I decided to install Windows Vista Ultimate last night (the final RTM version).  The installation took about 40 minutes from putting the disk in until I logged into Vista for the first time.  While that was a little longer t......

Video: Using the ASP.NET AJAX UpdatePanel, Triggers and PageRequestManager

Microsoft's ASP.NET AJAX technology provides a quick and simple way to add AJAX capabilities into new or existing Web pages.  In this video tutorial I discuss how to use the UpdatePanel, refresh it using triggers and detect when it has finished updating using the new PageRequestManage......

Video: Minimize Code with TableAdapters and Strongly-Typed DataSets

One of the talks I gave at the 2006 ASP.NET Connections conference in Las Vegas covered using TableAdapters and strongly-typed DataSets.  TableAdapters offer a great way to create a data-tier that work with stored procedures or inline SQL without writing much (if any) code.  They can be u......

Video: Microsoft AJAX, XML and Web Services

I recently had the opportunity to speak at the ASP.NET Connections conference in Las Vegas and had my good friend Spike Xavier video the talk.  Although lighting conditions in the room weren't really conducive to filming it turned out good enough to watch for those who are intere......

DevConnections Conference Wrap-Up

I just got back from the DevConnections conference in Las Vegas and thought I'd give a quick summary.  If you've never attended a DevConnections conference they're both fun and educational and will definitely keep you hopping with different talks and events.Although ......

Las Vegas DevConnections Talks - Code and Content (Updated)

 I'm going to be giving 3 talks and one pre-conference workshop at DevConnections next week in Las Vegas on behalf of Interface Technical Training.  It's always a great conference and I'm looking forward to it.  The topics I'll be covering are shown below:Migrati......
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