Question

Web Application Development Course

1. What is the SILVER lifecycle and the various page lifecycle events?

2. How you can implement exception handling in C#?

3. What is the use of the CssClass attribute of a server control for applying styles to the control?

4. How HTML table can be used for laying out the controls of a form?

5. What are the use of the identifiers and event handlers for the controls of a web page?

Answer 1

1. ASP.NET is one of the web development platform. It includes a life cycle. Developers find it difficult to understand the life cycle in order, like where to keep the methods, page properties and all. To make it easy the series of life cycle steps is to create an acronym. It is easy to remember.

S - Start

I - Initialise

L - Load

V - Validate

E - Event Handling

R - Render

ASP.NET page life cycle events includes

• PreInit
• Init
• InitComplete
• OnPreLoad
• Load
• PostBack
• LoadComplete
• OnPreRender
• OnSaveStateComplete
• Render
• Unload

2. In C# exception is a problem that arises during program execution. It is the result of particular situation that happens when a program is running.An exception will transfer the control to one part from another part in a program.

C# Exception handling is build with four keywords

• try - it defines the block of code where exception is happened .It is followed by one or more catch block
• catch - It handles an exception. It uses exception handler where you want to handle the problem.
• finally- This statment is used to execute given set of statments, whether exception is thrown or not.
• throw- This statment is used to show an exception.

3.The Css class property is used to return a

Css style class to control.

4.The simplest way is using <table> tag.