Contents tagged with Tips and Tricks
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Gotcha: Don't use <xhtmlConformance mode="Legacy"/> with ASP.NET AJAX
Recently I've helped a few developers who have been having some weird JavaScript issues (both when using ASP.NET AJAX and with some other custom JavaScript routines they were using). The culprit was that they had automatically migrated a VS 2003 Web Project to VS 2005, and still had the <xhtmlConformance mode="Legacy"/> switch configured within their web.config file.
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Tip/Trick: Use the ASP.NET 2.0 CSS Control Adapters for CSS friendly HTML output
Tired of having html <table> elements rendered by the built-in ASP.NET server controls and wishing you could use a pure CSS solution instead? If so, read on...
Last week we released Version 1.0 of the ASP.NET 2.0 CSS Control Adapters. These adapters take advantage of a new extensibility feature in ASP.NET 2.0 that we call the "Control Adapter Architecture", and which enables developers to override, modify and/or tweak the rendering output logic of an existing server control (without changing any of its properties, supported events, or programming model).
The ASP.NET 2.0 CSS Control Adapters that we released last week provide pre-built control adapters for 11 of the most common ASP.NET controls (GridView, DetailsView, FormsView, DataList, Menu, TreeView, Login, LoginStatus, CreateUserWizard, ChangePassword and PasswordRecovery). The CSS Control Adapters cause these ASP.NET controls to emit CSS friendly html output (eliminating things like inline styles and <table> elements), and can significantly help when using CSS on your web-site.
Click any of the links below to see a before/after example of how they change the markup generated by these built-in ASP.NET controls:
- Menu
- TreeView
- DetailsView
- FormView
- GridView
- DataList
- Login
- ChangePassword
- PasswordRecovery
- CreateUserWizard
- LoginStatus
The CSS Control Adapter toolkit includes both VB and C# source code for all of the above control adapters. You can use the source-code as-is (without having to modify anything) to get pure CSS output. Or if you want to tweak the output even further you can go in and modify the adapters to emit any custom markup you want:
I posted a nice tutorial two months ago that walksthrough how you can use the CSS Control Adapters that I highly recommend reading to learn how to get started.
Scott Mitchell earlier today also posted a nice CSS Control Adapters article on www.4guysfromrolla.com that covers how to use them as well.
You can ask questions and get help on how to use them on the CSS Control Adapters Forum on http://www.asp.net.
Hope this helps,
Scott
P.S. I'd like to pass along a special big thanks to Russ and Heidi for all of their awesome work in building these CSS Control Adapters and samples!
P.P.S. For additional ASP.NET Tips/Tricks blog posts of mine, please review my ASP.NET Tips, Tricks and Resources page.
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Tip/Trick: Implement "Donut Caching" with the ASP.NET 2.0 Output Cache Substitution Feature
Some Background:
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Tip/Trick: How to Register User Controls and Custom Controls in Web.config
I've been including this technique in my ASP.NET Tips/Tricks talks the last year, but given how many people are always surprised by its existence I thought it was worth a dedicated tip/trick post to raise the visibility of it (click here to read other posts in my ASP.NET Tips/Tricks series).
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Common Gotcha: Don't forget to <clear/> when adding providers
Recently I've helped a few people out who were having an issue with how they had added new Membership, Role, and Profile providers within their web.config file. If you are ever going to add a provider declaration within your web.config file, please read-on to learn how to avoid a common gotcha.
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Gotcha: Lost HTML Intellisense within ASP.NET AJAX Controls
Symptom:
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Nikhil's WebDevHelper Utility and ASP.NET AJAX Support
If you aren't subscribed yet to Nikhil's blog, you really should visit it and subscribe immediately.
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ASP.NET Connections Slides + Demos
Earlier this week I presented at the ASP.NET Connections conference in Las Vegas. This is a great conference that is held twice a year (the fall show is in Las Vegas, the spring show is in Orlando). This past week we had over 1,500 attendees for the ASP.NET conference alone, and more than 4,700 total for all of the DevConnections conferences held in parallel (VS, SQL, SharePoint, Mobile and Office Connections are all held in the same place - with attendees allowed to attend any session). -
Tips/Tricks and LINQ Slides+Demos from my Talk in Dallas
I had a great time presenting for a few hours to the North Dallas .NET User Group this past Thursday. I covered two topics:
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Tip/Trick: Handling Errors with the UpdatePanel control using ASP.NET AJAX
Luis Abreu is an ASP.NET MVP who has a great blog on the http://msmvps.com blog site. Earlier today he posted a great tutorial post that describes how to use some of the new features in the ASP.NET AJAX Beta1 release to add more robust error handling into your application. I highly recommend reading and bookmarking it for future use.