1. ASP. NET 2. 0 - Differences Dave Webster EMEA Technical Team dave
ASP.NET Differences Dave Webster EMEA Technical Team blogs.msdn.com/davewebster Microsoft Corporation

2. Who are you? ASP 2.0 ASP Classic? PHP? ASP 1.1? Ruby on rails?
Cold Fusion?

3. Overview The good and bad with Classic ASP (and PHP)
Introduction to Microsoft® ASP.NET
Key changes from ASP to ASP.NET
Applications that use databases
ASP to ASP.NET compatibility FAQ
An introduction to Atlas

4. What do you like about… ASP Classic/PHP? Its free Lots of samples
4/26/2017
What do you like about…
ASP Classic/PHP?
Its free
Lots of samples
Deployment is easy
Your existing code just works
Living community

5. What don't you like about…
4/26/2017
What don't you like about…
ASP/PHP
Not type safe
Spaghetti code
Error prone
Security risks?
Code base may be old and vulnerable (esp. ASP)
Can't reuse skills
Not object Oriented (ASP earlier PHP)
Lots of code (even if it's someone else's)
PHP
Best editors are not free
Problems with the old. Way. From the last slide you can say that the code only just works.
Points: Not type safe. This is OK until things go wrong or the app gets large. What do I use this variable for?
Spaghetti code. Its not your fault that your apps became this way, it’s the way the environments encouraged you to code. But it gets harder to maintain, you make mistakes which the compiler does not catch. These errors are subtle and expensive to fix.
Security. Your app is based on a body of someone else’s code. How current is it? How robust against the newer forms of attack.
Skill reuse. Limited to where you can use your PHP skills and ASP skills. Cant build a winform or Office addin easily for example.
Not OO.
Lots of code to do simple things. Even if you just copied and modified the code you still need to manage it.
PHP Editor. For real development you need to spend money. PHP is not free.
Finding functions in PHP can be hard. They are inconsistent in naming and function ahd in one lump..

6. What concerned you about previous versions of ASP.Net?
Requires learning a new language
VB.Net looks different
All the samples are in C#
Everything was compiled into a single binary
Deployment is difficult
Its expensive just to evaluate it
Needs IIS on the machine – can’t use at home or at work
VB.Net is an evolution of VB However it is right that there are some new things in the language to learn. The good news is that there is much less code in a modern ASP.Net applicatoin, as the demo in a few minutes will show.
All the samples in C#. All MSDN samples are in both VB.Net and C#. However we are sorry that most samples in demos and presentations are in C#. VB.Net is an equal language in .Net as good as C#.
Single binary. The audience may have seen ASP.Net 1.x and not liked the cycle or build and test. Show in the demo how to save and refresh the browser. 6 6

7. Enter Asp.Net 2.0 Requires learning a new language
VB.Net looks different it’s still VB
All the samples are in C#. Now also in VB.Net.
No compile step necessary, save and refresh
Deployment is easy
Express edition is free
Comes with its own limited Web Server
VB.Net is an evolution of VB However it is right that there are some new things in the language to learn. The good news is that there is much less code in a modern ASP.Net applicatoin, as the demo in a few minutes will show.
All the samples in C#. All MSDN samples are in both VB.Net and C#. However we are sorry that most samples in demos and presentations are in C#. VB.Net is an equal language in .Net as good as C#.
Single binary. The audience may have seen ASP.Net 1.x and not liked the cycle or build and test. Show in the demo how to save and refresh the browser. 7 7

8. Instantiate, process, and render
ASP.NET Request Flow
Generate
ASPX
engine
Parse
Request
Instantiate
Request
Instantiate, process, and render
Response
Page
class
Response 8

9. ASP.NET Programming Models
Two types of programming models exist
ASPX page only: contains HTML, control tags, and code
Code-behind model: ASPX file contains HTML and control tags, and a code-behind file contains code
A true separation between code and content
One File
Two files. (code-behind model)
Page.aspx
Page.aspx
Page.aspx.vb
<Tags> +
Code
<Tags>
Code

10. Visual Studio 2005 C# Express VB C++ J# Web
4/26/2017 7:24 AM
Visual Studio 2005
Testers
Visual Studio Team System
Visual Studio
Team Architect Edition
Team Developer Edition
Team Tester Edition
Architects
Enterprise Devs
Consultants
Microsoft Visual Studio Professional Edition
Professionals
Part-Timers
Hobbyists
Students C#
Express VB
C++ J#
Web
Enthusiasts
Novices
© 2005 Microsoft Corporation. All rights reserved.
This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.

11. Demo Hello world Controls Accessibility Localization
Create a simple page with a table and a calendar control. Use code behind or infile.
Add a calendar control to a table cell, investigate its properties and the quick format option.
Add a label and a text box. Show that the properties are now the same for ‘text’ rather than ‘text’ and ‘caption’.
Change the browser language to be the local language (or something like Chinese-China). .
Add Culture=“auto” to the top of the markup.
Refresh the browser and notice the difference.
Notice how little code you need to do things.
If time: Add a label saying ‘the time is’ add another label.
Add code to set the current time to the second label

12. ASP.NET Features Life made easy for developers
Visual Studio designer support, rich server controls, and base class library support
Write code in the language of your choice
Structured error handling
Great debugging and tracing support

13. ASP.NET Features Performance, scalability, and reliability
Compiled code means speed
Cache APIs to improve performance and scalability
Built-in support for Web farms and Web gardens
Nonstop availability and protection against deadlocks, memory leaks, and so on

14. ASP.NET Features Easy deployment Xcopy deployment Don’t need FPSE
Dynamic updates without interrupting the service – use FTP
No more registry! Use XML-based configuration files
More control with the new security model
Flexible session state management
Many other new features

15. Application Configuration Changes
ASP.NET application settings are stored in XML configuration files
Types of configuration files
Machine.config
Contains machine-wide settings
Web.config
Contains project- and application-wide settings
Easy programmatic access to the data in these files

16. Security Related Changes
The IIS part of the security remains same
Use security sections in the configuration files
New authentication modes
Windows, Forms, None
Authorization modes permit you to control access to resources:
File authorization
URL authorization
Permit and deny users access to the application

17. VBScript vs. Visual Basic .NET
No VBScript in ASP.NET — it’s all Microsoft Visual Basic® .NET!
Visual Basic language changes
Option Explicit is now the default
No more “Variant” type — use type “Object”
Method and function calls with parameters now require parentheses, so change:
<% Response.Write "Hi" %> to
<% Response.Write ("Hi") %>
By default, arguments are passed by value
Value types and reference types
Arrays are now zero based

18. Visual Basic Language Changes
Let and Set are not supported, so change:
Set MyObj1 = MyObj2 to MyObj1 = MyObj2
No more default properties (except for indexed properties), so change:
MyString as string = Textbox to MyString as string = Textbox.Text 18 18

19. Visual Basic Language Changes
Integer data type is now 32 bits and a Long data type is 64 bits
Use structured error handling (Try-catch block) instead of OnError (OnError still works)
Must cast data types explicitly:
Response.Write ("Count=" & CStr(MyCount))
or Response.Write("Count=" & CType(MyCount, String))

20. Visual Basic Language Changes
Must have spaces around “&” while doing string concatenation, so change:
x = str1&str2
to x = str1 & str2
Property Get, Property Set, and Property Let are not supported anymore, so instead use:
Public Property MyCount as Integer
Get
MyCount = InternalValue
End Get
Set
InternalValue = value
End Set
End Property

21. Demo VB Language Changes
Show the public property syntax. See how the code is generated for you.
Show how let and set disappear but are enterable.
Show List(of) generics
Page events Load, PreInit etc

22. Applications that Use Databases
Data access changes
ADO and ADO.NET are quite different
ADO.NET is not exactly backward compatible
Three main objects in ADO.NET: DataSet, DataReader, and DataAdapter
Two built-in managed data providers: SQLClient and OLEDB
Built-in designer support for ADO.NET objects in Visual Studio .NET
Can be code free

23. ASP to ASP.NET Compatibility FAQ
Do I need to write code for different browsers?
No – ASP.NET produces HTML 3.2 compliant output
Can I still use ADO from ASP.NET?
Yes – you can use ADO through Interop, but ADO.NET is preferred

24. Demo
Atlas
Show the public property syntax. See how the code is generated for you.
Show how let and set disappear but are enterable.
Show List(of) generics
Page events Load, PreInit etc 24

25. ASP.NET Resources ASP.NET Quick Start Tutorials
Authentication in ASP.NET Security
ASP.NET Security
Session State in ASP.NET
ASP.NET Configuration