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Both ASP.NET MVC and the ADO.NET Entity Framework are both very popular topics right now in the developer community.Having spoken at various user group meeting and code camps it is very obvious to me what topics a lot of developers are interested in. I see that sessions about ASP.NET MVC or the Entity Framework are always packed with developers eager for more information. The focus of this article is the Entity Framework, but in the context of an ASP.NET MVC application. As such, I am assuming at least basic understanding of ASP.NET MVC but little-to-none with Entity Framework.

This is just a helper article which may help you to decide which technology you might want to go.

Back in May 2010 I wrote a three-part article series titled Building a Store Locator ASP.NET Application Using Google Maps API, which showed how to build a simple store locator application using ASP.NET and the Google Maps API. The application consisted of two ASP.NET pages. In the first page, the user was prompted to enter an address, city, or postal code (screen shot). On postback, the user-entered address was fed into the Google Maps API's geocoding service to determine whether the address, as entered, corresponded to known latitude and longitude coordinates. If it did, the user was redirected to the second page with the address information passed through the querystring. This page then queried the database to find nearby stores and listed them in a grid and as markers on a map (screen shot).

Since the WebForms store locator application was published, several readers have emailed me to ask for an ASP.NET MVC version. I recently decided to port the existing WebForms application to ASP.NET MVC. This article, the first in a two-part series, walks through creating the ASP.NET MVC version of the store locator application and pinpoints some of the more interesting and challenging aspects. This article examines creating the ASP.NET MVC application and building the functionality for the user to enter an address from which to find nearby stores. Part 2 will examine how to show a grid and map of the nearby stores.

This Article is a step by step approach to create

One of the new controls available with ASP.NET 4 is the QueryExtender control. The QueryExtender is designed to simplify filtering data returned from a LinqDataSource or EntityDataSource by decoupling the filtering logic from the data source control. Using the QueryExtender is easy - simply add a QueryExtender to the page, specify what data source control it applies to, and then define the filtering criteria. For example, when displaying product information on a web page you could use the QueryExtender control and a few lines of markup to display only those products that are not within a certain price range and whose name or category starts with a user-specified search string.

Filtering the data returned by a LinqDataSource or EntityDataSource control is certainly possible without the QueryExtender; both the LinqDataSource and EntityDataSource controls have a Where property that can be used to specify filtering criteria. What the QueryExtender offers is a simpler means by which to filter data. This article includes a number of demos (which can be downloaded at the end of this article) that showcase the QueryExtender's ease of use and its powerful filtering capabilities.

WatiN is a great .NET library for writing automated browser based tests that uses real browser to go to websites, perform actions and check for browser output. Combined with a unit test library like xUnit, you can use WatiN to perform automated regression tests on your websites and save many hours o

ASP.NET authentication and authorization

The goal of federated security is to provide a mechanism for establishing trust relationships between domains. Platform tools like Windows Identity Foundation (WIF) make it much easier to support this type of identity federation. We show you how.

The article describes an implementation of ASP.NET validator that uses the new System.ComponentModel.DataAnnotations assembly that came in .NET 3.5 SP1.

How to get a Website/URL Thumbnail/Screenshot with C#.NET 2.0 in VS 2005