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This article has two major parts. In the first part we will discuss about 3.Tier Architecture and in the second part we will implement an ASP.NET example to practice the 3.Tier design. You need the Visual Studio.net with c# compiler ,IIS and a Microsoft SqlServer to follow this article. Download this article (23 Page MS Word Doc) and its source code - TimeManagement.zip
Updated: 05/28/2005
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If you\'ve created a Web application in Visual Studio .NET, you should be aware that-by default-anyone can access your pages. However, there is a way to keep nosy, unwanted types out. It\'s called authentication . ASP.NET includes support for three core types of authentication: Windows, which allows only certain Windows accounts to access a page; Passport, which uses the Microsoft Passport universal login system to verify a user (a pay service); and...
Updated: 05/28/2005
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Classic ASP developers often had to \"roll their own\" authentication scheme, however, in ASP.NET much of the grunt work has been taken out. This article outlines how things have changed and how FormsAuthentication can be used to secure a Web site with a minimal amount of code. In classic ASP, authentication was pretty much all or nothing. Either you were using integrated security (often...
Updated: 05/28/2005
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Introduction When a page request is sent to the Web server, whether through a submission or location change, the page is run through a series of events during its creation and disposal. When we try to build ASP.NET pages and this execution cycle is not taken into account, we can cause a lot of headaches for ourselves. However, when used and manipulated correctly, a page\'s execution cycle can be...
Updated: 05/28/2005
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This article is based on the March 2004 Community Technology Preview of ASP.NET 2.0. All information contained herein is subject to change. This article discusses: New data controls Administration and roles Personalization and themes Coding and compilation options This article uses the following technologies: ASP.NET 1.x and C# Code download available at: ASPNET20Overview.exe (121KB) n the four short years since it was first unveiled, ASP.NET has become the gold standard...
Updated: 05/28/2005
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Introduction The second portion of this article demonstrates how to implement your own authentication method using ASP.NET. Part 1 covered the basics of Forms Authentication and the concepts behind it (see http://www.15seconds.com/issue/020220.htm ). This article assumes you have read part 1, or are familiar with the concepts of Forms Authentication. download source code view login demo view hash...
Updated: 05/28/2005
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This article explains how to create a file-upload user control in ASP.NET. To do this, we\'ll build multipart MIME upload forms using the InputFile HTML Server Control and learn how to take advantage of the file-upload services built into the HTTP runtime for ASP.NET. The article will show how to save the uploaded file to disk without granting anonymous users file-write access to...
Updated: 05/28/2005
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This is a serious threat, but the solutions are easy. Here\'s the skinny: 1) Here\'s the KB for how to do this type of checking programmatically: http://support.microsoft.com/?kbid=887459 2) Microsoft has released an HTTP module that Web site administrators can apply to their Web server that will protect all ASP.NET applications on the server against URL canonicalization problems known to Microsoft as of the publication date. This module, as well as detailed...
Updated: 05/28/2005
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Authentication is the process of validating a user based on a set of credentials such as username, password, and e-mail address. Suppose you own a small Web development company that uses ASP.NET, and you want to give your users a secured area from where they can download or view additional resources such as tutorials. You would have to store crucial user data such as usernames and passwords (preferably in a database such as Microsoft Access or...
Updated: 05/28/2005
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This article assumes you\'re familiar with ASP.NET, C#, and XSLT Level of Difficulty 1 2 3 Download the code for this article: SiteSkinning.exe (216KB) SUMMARY One way that Web sites and applications become better able to meet the needs of customers is by allowing them to personalize their experience. For Web sites, this means displaying the content as the user wants to see it. For rich-client applications, this often means allowing the user to choose the user interface...
Updated: 05/28/2005
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