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Validate using RequiredFieldValidator
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Validate using RequiredFieldValidator
http://www.geekpedia.com/prog_ttrls.php?id=82
In this tutorial you'll find out how to validate a TextBox and RadioButtonList control on a webform using RequiredFieldValidator, which will show a warning and stop the submission of the form if a required field has no value.
ASP.NET > Tips and Tutorials
Oct 10, 2006
Andrei Pociu
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Multithreading is a technique that can be used to perform time consuming tasks in a separate additional thread other than the main application thread.
When you, for example, have a time-consuming function, you may need to call this function as a response of a button click. Now, instead of freezing all your application waiting for this function to return / to finish, you can create a new thread and assign this function to. When you do this, your application interface will not be blocked and you can use it to perform other tasks. At the same time, your time-consuming task is being carried out in the background.
When you, for example, have a time-consuming function, you may need to call this function as a response of a button click. Now, instead of freezing all your application waiting for this function to return / to finish, you can create a new thread and assign this function to. When you do this, your application interface will not be blocked and you can use it to perform other tasks. At the same time, your time-consuming task is being carried out in the background.
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Microsoft's .NET technology has attracted a great deal of press since Beta 1 was first released to the world. Since then, mailing lists, newsgroups, and web sites have sprung up containing a mixture of code samples, applications, and articles of various forms. Even if you're not a programmer using existing ASP technology, it's a good bet that you've at least heard of .NET, even if you aren't quite sure what it involves. After all, there's so much information about .NET, that it's sometimes hard to filter out what you need from what's available. With new languages, new designers, and new ways of programming, you might wonder exactly what you need to write ASP.NET applications.
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ASP.NET 2.0 Tutorials : Configuring Page-Level Caching - In this tutorial you will learn how to configure Page-Level Caching. Page directive and Duration attribute.
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Visual Studio.NET is a user friendly way to create web sites. It provides for multiple ways of opening websites. Frontpage Server extensions, FTP or direct file system path can be used to open the web pages. The inbuilt web server Cassini makes IIS server optional for testing and debugging of applications. ASP.NET 2.0 uses the dynamic compilation engine to compile its files and changes to .aspx, .cs or .vb files are caught immediately.
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CAPTCHAs are used to prevent bots from performing actions which might be used to make a profit on the part of the person running a bot. Most often, this relates to spam. For example, free email accounts (such as those provided by Google or Yahoo) can be used to send spam, so these sites use CAPTCHAs to prohibit bots from registering.
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