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page life cycle in asp.net.......

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Asp.net application and pagelifecycle Introduction In this article, we will try to understand what the different events are which take place right from the time the user sends a request, until the time the request is rendered on the browser. So we will first try to understand the two broader steps of an ASP.NET request and then we will move into different events emitted from ‘ HttpHandler ’, ‘ HttpModule ’ and ASP.NET page object. As we move in this event journey, we will try to understand what kind of logic should go in each and every one of these events. This is a small Ebook for all my .NET friends which covers topics like WCF, WPF, WWF, Ajax, Core .NET, SQL, etc. You can download the same from here or else you can catch me on my daily free training here . The Two Step Process From 30,000 feet level, ASP.NET request processing is a 2 step process as shown below. User sends a request to the IIS: ASP.NET creates an environment which can process the request. In other words, it crea...
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SQL SERVER noteS......ip notes....

                                FUNCTION CREATE FUNCTION Addition() RETURNS Decimal(6,3) After specifying the type of value that the function would return, you can create a body for the function. The body of a function starts with the  BEGIN  and ends with the  END  keywords. Here is an example: CREATE FUNCTION Addition() RETURNS Decimal(6,3) BEGIN END Optionally, you can type the  AS  keyword before the  BEGIN  keyword: CREATE FUNCTION Addition() RETURNS Decimal(6,3) AS BEGIN END Between the  BEGIN  and  END  keywords, which is the section that represents the body of the function, you can define the assignment the function must perform. After performing this assignment, just before the  END  keyword, you must specify the value that the function returns. Thi...
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What is garbage collection

The .Net Framework provides a new mechanism for releasing unreferenced objects from the memory (that is we no longer needed that objects in the program) ,this process is called Garbage Collection (GC). When a program creates an Object, the Object takes up the memory. Later when the program has no more references to that Object, the Object's memory becomes unreachable, but it is not immediately freed. The Garbage Collection checks to see if there are any Objects in the heap that are no longer being used by the application. If such Objects exist, then the memory used by these Objects can be reclaimed. So these unreferenced Objects should be removed from memory , then the other new Objects you create can find a place in the Heap. The reclaimed Objects have to be Finalized later. Finalization allows a resource to clean up after itself when it is being collected. This releasing of unreferenced Objects is happening automatically in .Net languages by the Garbage Collector (GC). The progra...
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