Russell Yan's List: Web design

• When the ASPX page is embedded with the code of either C# or VB .Net, the ASP .Net run time automatically compiles the code into an assembly and loads it. If the code is kept in a separate source file either as a VB or C# file, it has to be compiled by the programmer, which will be used by the run time for further execution
• When the code is placed inside the script tag, it is treated to be class level code and any other code found is considered to be a part of the method that renders the web page
• So ultimately the compilation is only once and all the subsequent requests are entertained only by using the compiled code/DLL

1 more annotation...

• By default ASP.NET compiles pages and controls on a   per directory level
• ASP.NET then compiles both classes into the same assembly.

• Intellisense works in this code while you’re typing in Visual Studio   even though there’s no second partial class anywhere in your project.

   

   

  So where is this the other half of this partial   class coming from? ASP.NET generates it at compile time
• The DataEntry base class inherits from   System.Web.UI.Page in this example, but you can override the base class   in the partial class definition by inheriting from any other Page   derived class. For example, you can create a common base page class for   your application and store it in the APP_CODE folder and have any number   of pages in the Web application inherit from this class

2 more annotations...

• If you change the .dll and write a new version of it to the Bin folder, ASP.NET detects the update and uses the new version of the .dll for new page requests from then on

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