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Understanding LINQ (C#) : Amro Khasawneh

Sunday, July 06 2008

An introductory LINQ article describing the new language features of LINQ This article is about LINQ which I think is one of the most exciting features in Orcas. LINQ makes the concept of querying a first-class programming concept in .NET. The data to be queried can take the form of XML (LINQ to XML), databases (LINQ-enabled ADO.NET: LINQ to SQL, LINQ to Dataset and LINQ to Entities) and objects (LINQ to Objects). LINQ is also highly extensible and allows you to build custom LINQ enabled data providers (e.g.: LINQ to Amazon, LINQ to NHibernate, LINQ to LDAP)...

ASP.NET Configuration System : Richard Bean

Saturday, July 05 2008

Explains how to edit configuration files (Web.config) programmatically using Configuration API's, Web Site Administration Tool and Web Site Snap-in. ASP.NET Configuration system is used to describe the properties and behaviors of various aspects of ASP.NET applications. Unlike Classic ASP where configuration information was stored in a binary repository called the IIS metabase, ASP.NET uses XML-based configuration system that is more accessible and easier to use. You can configure features, such as Connection Strings, Authentication Modes, Caching, Debug and Tracing, Custom Errors and many more...

Enable IntelliSense in Your Documents : William Wen

Friday, July 04 2008

Use the new XML editor features to enable IntelliSense in your XML documents....

Using XSLT files with the new XMLDataSource control : Raj Kaimal

Thursday, July 03 2008

How to use XSLT files to transform data and expose it through the new XmlDataSource control without writing a single line of code! Today Ajax is the hottest buzzword of the web. Thanks to web developers of google, they are making Ajax more popular. Ajax is not a new technology; it combines a lot of existing technologies. Ajax stands for Asynchronous JavaScript and XML. It is a combination of existing technologies such as DHTML, CSS, JavaScript, DOM, XML, XSLT and XMLHttpRequest....

XML Encryption : dotnetslackers

Thursday, July 03 2008

XML Encryption is a W3C standard for encrypting XML elements. The encryption process involves taking an element from an xml document, encrypting it and it's children, and then replacing the original XML content with the generated encrypted XML in such a way as the document remains well formed. There are three approaches to Xml Encryption...

Permission Set XML for a Custom Trust Level : Don Kiely

Wednesday, July 02 2008

Writing partial trust Web apps requires some thought, tricks, and insight into how ASP.NET works. One thing you will need to do when customizing a policy file is to generate the XML for each permission in a permission set. Don Kiely shows how. Here’s a brief recap of partial trust ASP.NET applications. By writing and deploying an app with partial trust, you are limiting what the code can do to a small subset of all the permissions available within the .NET Framework. This restricts the app even beyond what Windows will allow it to do...

Persisting State Information : Bipin Joshi

Wednesday, July 02 2008

In the previous lessons you developed HyperLinkGroup control. The control is working as expected but it has one limitation. It can't retain its state information across post backs. For example, if you set the SourceFile property programmatically to some other XML file then across post backs it won't remember the new file name. In this lesson you will learn two ways to overcome this limitation. Understanding the problem Before we go further first of all let's make the problem clear with an example. Open the same HyperLinkGroup control that you developed in Lesson 1. Add a new XML file to the web...

Creating Multiple Choice Exam Application Part I : Mohammad Azam

Tuesday, July 01 2008

This is the first part of a multi-part series. In this series we will cover the scenario of creating a multiple choice exam for the user. In the first part I will cover the design of the application. This will include unit tests, domain objects and NHibernate mapping files. A school named “Geek School” requires a web application that can be used to give exams to their students. They require a page to upload the exam. The exam will be provided in an XML format. Each exam will consist of several questions. Each question will have multiple choices....

Using XML in ASP.NET : Richard Bean

Monday, June 30 2008

Explains how to store and retrieve data by using XML with ASP.NET web application. XML is a cross-platform, hardware and software independent, text based markup language, which enables you to store data in a structured format by using meaningful tags. XML stores structured data in XML documents that are similar to databases. Notice that unlike Databases, XML documents store data in the form of plain text, which can be used across platforms. In an XML document, you specify the structure of the data by creating a DTD or an XML schema. When you include a DTD in an XML document, the software checks...

Introduction to XAML Part 1 : Andreas Kraus

Monday, June 30 2008

You are coding in .NET and have basic knowledge of XML. You heard about that Windows Presentation Foundation (a.k.a WPF) and everyone says it’s so cool. Now you want to know more, so let’s get started! Introduction XAML is a language for .NET 3.0 which is responsible for forms and its elements. It is a so called markup language like HTML. Unfortunately there is no GUI tool that helps you code with XAML at the moment and that probably will not change until Microsoft releases the first Service Pack for Visual Studio 2007. So you got plenty of time to learn the basics of XAML without any...