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Recently my site partner and chief server farm engineer Robbe Morris and I went back and forth a couple of times about how you could prevent multiple users of an ASP.NET application from using the same credentials to log in at the same time from different machines, thereby circumventing a particular licensing scheme that was based on the allowed number of concurrent users. A pretty common problem, actually. Well, we searched the Net...
Updated: 05/28/2005
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Introduction Have you ever needed to have an image of some text generated dynamically on the fly? There are tons of possible applications for this type of thing which I won\'t go into, but prior to ASP.NET it was a relatively difficult thing to do. Well no more... I know I promised that I wouldn\'t go into them, but one of my favorite uses of this type of thing is to tell human visitors to your web site apart from computer visitors (spiders). By generating an image with a...
Updated: 05/28/2005
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Some time ago, I got into a bit of a research theme about figuring out how to interoperate Session state between classic ASP and ASP.NET. The reasoning was that a lot of developers have Classic ASP sites, and want to migrate to ASP.NET a piece at a time, and Session State transfer between them was the sticky issue. There has also been considerable newsgroup discussion about this issue, most everyone saying it \"can\'t be done\". You...
Updated: 05/28/2005
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If you\'ve ever attempted to create image thumbnails for your site, you\'ll know it\'s a tiresome task. You either do it manually, or use an inflexible system such as the FrontPage thumbnail feature. However, as you\'ve seen in previous tips, ASP.NET gives us tremendous control over how our images work. As such, we should be able to generate thumbnails on the fly... and this snippet will enable you to do just that. Create a new Web form (thumbnail.aspx) and add the following...
Updated: 05/28/2005
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This article assumes you\'re familiar with Visual Basic .NET and JavaScript Level of Difficulty 1 2 3 Download the code for this article: Blogging.exe (151KB) SUMMARY The ASP.NET advanced templated controls, such as the DataList and DataGrid, are perfect for many data representation situations. However, when you need the flexibility to render a variety of layouts, the Repeater control is what you need. In this article the author builds a full-featured blog application to...
Updated: 05/28/2005
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I wrote an article for ASP 101 called \" Extending Your Page Names \". Based on the number of people that contact me with questions and praise, it was one of the most successful articles I have ever written. Since then we have seen the launch of Windows 2003, IIS 6.0, ASP.NET, and the rise of Google. So I felt it was time to make an update to the article.... Introduction Dynamically generated pages are the only way to have a truly big...
Updated: 05/28/2005
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There are a few pros and cons of using the Mobile Web SDK. Pros No need to do browser checks and deliver WML or HTML content based on the target device. Only thing to learn is ASP.NET and .NET Mobile Controls. No need to learn WML. Easy to use programming model and drag and drop application development with Visual Studio.NET Server-Side event handling support. Automatic paging support. Cons You are limited to Microsoft products and operating systems. When a new version of WML or HTML is...
Updated: 05/28/2005
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Tim Ewald and Keith Brown This article assumes you\'re familiar with ASP.NET and C# Level of Difficulty 1 2 3 SUMMARY ASP.NET is a flexible and extensible framework for server-side HTTP programming. While most people think of ASP.NET in terms of pages served, there is a lower-level infrastructure sitting beneath this page model. The underlying plumbing is based on a pipeline of app, module, and handler objects. Understanding how this pipeline works is key if you want to get the most out...
Updated: 05/28/2005
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Introduction Microsoft hosts tons of events across the country that you can go to and learn about what\'s new and exciting in the world of Microsoft. Some of these cost money, but a lot of them are free as long as you register in advance. I hadn\'t been to one in a while and, looking for an excuse to get out of the office, I decided to go check out Microsoft\'s take on \"Moving to Microsoft ASP.NET (Level 200)\". Now This is a Small Group I never have a clue what to expect...
Updated: 05/28/2005
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I realize that most of you are too busy to bother trying to keep up with all the news and rumors that circulate in the ASP and .NET communities... that\'s why you come to us! The latest rumblings from the underground are about the next version of ASP.NET which is being called ASP.NET 2.0 (code-named Whidbey). From what I can tell it\'s very early so don\'t expect it anytime soon. From what I hear, this is the version that is going to ship with the next version of Visual...
Updated: 05/28/2005
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