Jason N. Gaylord
Social Distancing since 3/10
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Hello, I'm  jasongaylord Jason

I live with my family in the rolling hills of Northeastern Pennsylvania. I'm a web developer by trade, but have broad experience in various business areas. Want to know more about me?

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Who are the ASPInsiders?

Rob Chartier blogged about the ASPInsiders late last week. If you are unfamiliar about the group, it’s purpose, and it’s members, be sure to visit http://weblogs.asp.net/rchartier/archive/2008/08/01/who-are-the-aspinsiders.aspx.

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Amazon introduces Kindle

Amazon released a new portable device called Kindle to their marketplace today. Kindle has the ability to read thousands of books that are available in the Amazon marketplace. Users have the ability to preview books before they decide to purchase them. In addition, the Kindle product has the ability for users to store Microsoft Word documents on it for later viewing.

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Using the LINQ Keyword "First"

All day I was stumped on why there wasn’t a simple way to grab the first object in a sequence other than using:

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CodeStock coming August 9th to Knoxville

CodeStock is coming August 9th to Knoxville, Tennessee and you should see the speaker line-up! Jeff Prosise will present the opening keynote and Alan Stevens will mediate the open spaces. There’s a ton of great presenters that will be at CodeStock including Steve Andrews, Rachel Appel, James Avery, Jason Follas, Amanda Laucher, Chris Love, Wally McClure, Jeff McWherter, and more! Be sure to check out the agenda at http://codestock.org/Pages/Agenda.aspx and register for the event today!

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Getting Started with the AjaxDataControls in Visual Studio 2005

Sonu Kapoor just posted about getting started with the AjaxDataControls in Visual Studio 2005. The AjaxDataControls can be found on CodePlex at http://www.codeplex.com/AjaxDataControls/. Included in the controls are a JavaScript version of the Repeater, DataList, and DataGrid. If you’d like to have AJAX functionality over your data with minimal coding, I’d definitely check this out.

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AJAX Tip: Don't forget about the Async Web Service Calls!

FireFox. Internet Explorer 8. Both have great JavaScript debugging tools. Thanks to those tools, I only spent 5 minutes on an issue that could have taken hours to figure out. It was one of those moments when you know its something simple but you can’t figure out what it is. I had a page that loaded web service data into an AjaxDataControl Repeater. After the web service call, I entered some JavaScript to grab a page parameter and choose the item on the page that was selected. When I ran the page, I received an error that the object was undefined. However, if I added an alert to check the parameter, the page loaded fine. After using one of the debug tools I saw that the data wasn’t populated yet. That’s because ASP.NET AJAX makes web service and WCF calls asynchronously. To resolve this issue, I moved the code from the page load method to the method assigned to the successful data binding.

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LINQ to SQL and MS Small Business Server 2008 Talks at .NET Valley

The next .NET Valley User Group event will be on June 18th at Scranton University in Scranton, Pennsylvania. There will be two talks that evening. The first will begin at 6pm and will be presented by Michael Murphy. Michael will talk about the ins and outs of Microsoft Small Business Server 2008. The second talk will begin at 7:15pm or so and will be presented by yours truly. I will be talking about LINQ to SQL. To register for the event, please visit [http://dotnetvalley.com/events/eventdetails.aspx?eventid=59]http://dotnetvalley.com/events/eventdetails.aspx?eventid=59 “http://dotnetvalley.com/events/eventdetails.aspx?eventid=59”).

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Performance Tip: Return Only Necessary Columns Using LINQ

I was running into an issue where one of my webmethods was taking a large amount of time to return a small set (5-10 objects). I was using LINQ to SQL. I noticed that the LINQ to SQL query was returning all of the rows. After looking into the table a bit further, I noticed that the table included some columns with a larger type (old text column, image column, etc). So, I decided to modify my select to contain just the columns I needed. It improved my response time from roughly 8 seconds to 250 milliseconds. Here’s a sample select statement:

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A circular reference was detected while serializing an object of type 'FOO'

I ran into an issue earlier when trying to return an entity class through a web service for use in an AJAX page. After some quick research, I came across a post by Darren Neimke that referenced Rick Strahl’s post about LINQ to SQL and Serialization. For me, performing the first work-around and setting the relationship to ‘Friend’ worked.

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Worldwide Developer Conference News

If you’re looking to pick up the latest happenings from the Worldwide Developer Conference, check out this: http://www.macrumorslive.com/.

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