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ASP.NET Essential Training
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What's new in ASP.NET 4 (NEW)


From:

ASP.NET Essential Training

with David Gassner

Video: What's new in ASP.NET 4 (NEW)

This video series was originally recorded with ASP.NET 3.5. Since then, there have been two significant releases: ASP.NET 4 and 4.5. Most of the tools that I demonstrate in this video series still work exactly the same way in 4 and 4.5, but there have been some changes and new features that are worth describing. First of all, with ASP.NET 4, there was a significant simplification of the web.config file. The default XML file that manages your website was long and complex in 3.5. Beginning in Version 4, it was significantly shortened. Many optional elements were removed from the default file, and many elements were moved to another file that I'll describe in a moment. When you create a brand-new ASP.NET website in Visual Studio 2012 Express, targeting either ASP.NET 4 or 4.5, the default web.config file is very short and very simple. It has a single root element named configuration, a child element named system.web, and that contains a compilation directive, indicating which version of the ASP.NET framework is being targeted. This example is targeting 4.0, but in a brand new website built with Visual Studio 2012, the target framework will probably be set to 4.5. Many of the configuration options you might have seen in previous versions have been moved to a file called machine.config. This XML file is stored in the .NET framework folder on the system disk, and it's shared among all of the web applications hosted by a single server. You can still add your own custom directives to the web.config file. And as you work through this video series, you'll see that there are some elements that aren't in the default file anymore, but you can still insert them manually.
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  1. 18m 44s
    1. Welcome
      1m 42s
    2. Prerequisites
      2m 21s
    3. Using the exercise files
      1m 32s
    4. Upgrading exercise file websites for ASP.NET 4.5 (NEW)
      2m 40s
    5. What's new in ASP.NET 4 (NEW)
      3m 48s
    6. What's new in ASP.NET 4.5 (NEW)
      3m 23s
    7. What's new in this course update (NEW)
      3m 18s
  2. 33m 34s
    1. Understanding how ASP.NET works
      5m 52s
    2. Installing Microsoft Visual Web Developer 2008
      3m 43s
    3. Installing Visual Studio Express 2012 for web (NEW)
      2m 12s
    4. Hello World: Creating your first ASP.NET web site
      4m 28s
    5. Creating pages with dynamic output
      7m 39s
    6. Understanding the development web server
      4m 49s
    7. Exploring the development environment
      4m 51s
  3. 40m 2s
    1. Understanding Microsoft SQL Server
      5m 47s
    2. Installing SQL Server Express
      6m 51s
    3. Exploring SQL Server Management Studio Basic
      4m 23s
    4. Creating a new database
      8m 51s
    5. Connecting to the database in ASP.NET
      5m 35s
    6. Testing SQL queries
      3m 53s
    7. Presenting a dataset in an ASP.NET page
      4m 42s
  4. 25m 31s
    1. Understanding ASP.NET web form pages
      5m 51s
    2. Separating presentation and logic with code files
      4m 17s
    3. Adding web form controls to a page
      5m 25s
    4. Handling postback data in a web form page
      5m 50s
    5. Using data binding expressions
      4m 8s
  5. 48m 37s
    1. Creating a testing environment
      4m 40s
    2. Declaring and using a simple variable
      6m 14s
    3. Declaring and using a complex object
      6m 16s
    4. Using loops
      6m 52s
    5. Using functions
      9m 25s
    6. Using trace statements
      4m 47s
    7. Debugging with breakpoints
      5m 45s
    8. Commenting code
      4m 38s
  6. 17m 43s
    1. Creating web controls
      5m 53s
    2. Registering a user control on a web form page
      3m 25s
    3. Registering controls globally in the web.config file
      3m 53s
    4. Adding public properties to a web control
      4m 32s
  7. 19m 7s
    1. Understanding Cascading Style Sheets (CSS)
      5m 36s
    2. Attaching external CSS files
      3m 12s
    3. Defining a CSS selector
      6m 10s
    4. Using CSS class selectors in server controls
      4m 9s
  8. 30m 34s
    1. Presenting data with the GridView control
      5m 49s
    2. Controlling GridView paging and appearance
      5m 46s
    3. Editing data with the GridView control
      6m 57s
    4. Presenting data with the DataList control
      5m 42s
    5. Formatting data with binding expressions
      6m 20s
  9. 36m 46s
    1. Using the DetailsView control
      7m 33s
    2. Inserting data with the DetailsView control
      6m 36s
    3. Redirecting page requests
      9m 39s
    4. Creating an update page
      6m 20s
    5. Linking to update pages from the list page
      4m 3s
    6. Deleting database records
      2m 35s
  10. 22m 15s
    1. Customizing forms with item editing templates
      6m 7s
    2. Adding validator controls to a form
      6m 40s
    3. Controlling the validation error message display
      6m 24s
    4. Using the ValidationSummary control
      3m 4s
  11. 29m 49s
    1. Creating a query with joined tables
      8m 6s
    2. Replacing control style properties with CSS
      5m 50s
    3. Creating a CSS file for printing
      3m 14s
    4. Suppressing elements in printed web pages
      5m 47s
    5. Selecting data for a report
      6m 52s
  12. 11m 14s
    1. Understanding ViewState and managing postbacks
      4m 36s
    2. Using session variables
      6m 38s
  13. 20m 57s
    1. Turning on forms authentication
      1m 51s
    2. Creating a page to log in users
      4m 18s
    3. Creating a page to set up new users
      4m 6s
    4. Understanding the security database
      3m 27s
    5. Configuring security in the web.config file
      2m 59s
    6. Creating a page to log out users
      4m 16s
  14. 27m 56s
    1. Installing IIS on Windows XP
      6m 32s
    2. Installing ASP.NET 3.5 on Windows XP
      1m 39s
    3. Deploying a site on Windows XP
      5m 9s
    4. Installing Information Internet Services (IIS) on Windows Vista, Windows 7, and Windows 8
      1m 56s
    5. Configuring ASP.NET 3.5 on Windows Vista
      2m 15s
    6. Deploying an application on Windows Vista
      3m 29s
    7. Scripting a database for deployment
      3m 36s
    8. Exporting database scripts in SQL Server Management Studio 2012 (NEW)
      3m 20s
  15. 2m 0s
    1. Where to go from here
      2m 0s

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ASP.NET Essential Training
6h 24m Beginner Apr 28, 2009 Updated Feb 13, 2013

Viewers: in countries Watching now:

Thousands of businesses have used Microsoft ASP.NET to build professional, dynamic websites. In this course, web developer David Gassner demonstrates the tools needed to build and deploy a dynamic site using ASP.NET 3.5 or 4.5. Covering everything from installing and configuring Visual Web Developer 2008 or Visual Studio Express 2012 for Web and SQL Server Express to creating web form pages, this course is designed to give beginning and intermediate developers hands-on experience.

Topics include:
  • Storing data with SQL Server
  • Using the GridView control to present and edit dynamic data
  • Creating a data entry system
  • Attaching external CSS files
  • Creating pages to log in and authenticate visitors
  • Installing Internet Information Services (IIS) on Windows XP and Windows Vista
  • Deploying an ASP.NET website on IIS
Subjects:
Developer Web Servers Programming Languages Web Development
Software:
ASP.NET
Author:
David Gassner

What's new in ASP.NET 4 (NEW)

This video series was originally recorded with ASP.NET 3.5. Since then, there have been two significant releases: ASP.NET 4 and 4.5. Most of the tools that I demonstrate in this video series still work exactly the same way in 4 and 4.5, but there have been some changes and new features that are worth describing. First of all, with ASP.NET 4, there was a significant simplification of the web.config file. The default XML file that manages your website was long and complex in 3.5. Beginning in Version 4, it was significantly shortened. Many optional elements were removed from the default file, and many elements were moved to another file that I'll describe in a moment. When you create a brand-new ASP.NET website in Visual Studio 2012 Express, targeting either ASP.NET 4 or 4.5, the default web.config file is very short and very simple. It has a single root element named configuration, a child element named system.web, and that contains a compilation directive, indicating which version of the ASP.NET framework is being targeted. This example is targeting 4.0, but in a brand new website built with Visual Studio 2012, the target framework will probably be set to 4.5. Many of the configuration options you might have seen in previous versions have been moved to a file called machine.config. This XML file is stored in the .NET framework folder on the system disk, and it's shared among all of the web applications hosted by a single server. You can still add your own custom directives to the web.config file. And as you work through this video series, you'll see that there are some elements that aren't in the default file anymore, but you can still insert them manually.

ASP.NET 4 also introduced some new core services. These include permanent redirection of pages. For example, if you have a .NET page that's been replaced by another page, you can use this directive, RedirectPermanent, and then that page will always be replaced by the new page that you describe. There's also a feature called extensible output caching. By default, ASP.NET content is cached to memory, but you can change that to save it to system disk instead. Take a look at the output cache directive in the documentation for more details. and ASP.NET 4 also lets you expand the range of available URLs. Using the HTTP Runtime tag, you can indicate the maximum request path length and the maximum query string length, significantly expanding on what ASP.NET 3.5 allowed. There are new tools for the web forms framework, including new attributes for the page directive that let you place your key words and description properties in your code. These would replace what you might otherwise put in the head tag in pure HTML. Also, you can enable and disable view state for individual controls. This feature can significantly reduce the size of the view state object that's created in ASP.NET pages and improve performance. And ASP.NET 4 improved support for newer web browsers.

For information about these and all other new features that were introduced in ASP.NET 4, visit this webpage. These features will be available regardless of whether you're working in ASP.NET 4 or ASP.NET 4.5.

Find answers to the most frequently asked questions about ASP.NET Essential Training.


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Q: When trying to create a new database, after pasting the text into the SQL Management Suite and executing the query, the database is not created and the following message appears: 

Database 'mybookstore' does not exist. Make sure that the name is entered correctly

What is causing this error?
A: The database must be explicitly created before the script is run. Start by right-clicking on the Databases item in the left panel, then follow the prompts to create the database. Then retry the query.
Q: I am running into problems installing the latest version of ASP.NET. Has the installation procedure changed since this tutorial was recorded?
A: The installation process for the newest version of ASP.NET and its associated tools is a little different than in ASP.NET 3.5, which was used to record this course. You can download Microsoft Web Platform Installer 2.0 from:
<a href="http://www.microsoft.com/web/downloads/platform.aspx" target="blank">http://www.microsoft.com/web/downloads/platform.aspx</a>
Microsoft Web Platform Installer 2.0 includes everything you need:
ASP.NET 4?
Visual Web Developer 2010?
SQL Server Express
You must have one of the following operating systems:
Windows 7?
Windows Vista?
Windows Vista SP1?
Windows XP SP2+?
Windows Server 2003 SP1+?
Windows Server 2008?
Windows Server 2008 R2
You must have administrator privileges on your computer to run the Web Platform Installer.
Q: This course was updated on 2/13/2013. What changed?
A: Since this course was recorded, Microsoft has released both ASP.NET 4.5, the latest version of the server-side web application server, and Visual Studio Express 2012 for Web (the successor product to Visual Web Developer). Both have been adapted to work on Windows 8. There will be some visual changes and some functional changes, but most of the server-side code shown in the course is the same. This update provides a map for those working with the latest software so they can navigate their way through the course.

In particular, we added <em>What's new</em> movies for both ASP.NET 4 and 4.5, a movie explaining the significance of the update, a movie on installing SQL Server Express 2012, and one on exporting database scripts in SQL Server Management Studio 2012, as well as updates to visuals throughout the course.
Q: In the chapter on user authentication, an authentication error results when I try to use the Login component or register a new user. How do I fix this?
A: This is a known error that can occur when using the original release of Visual Studio 2012 Express for Web. Update your copy of Visual Studio for Web to at least maintenance release 1, and then try the exercise again.
 
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