Page Life Cycle in Asp.net

1.PreInit

2.Init

3.InitComplete

4.Preload

5.Load

6.Control Events

7.Load Complete

8.PreRender

9.PreRenderComplete

10.SaveStateComplete

11.Render

12.Unload

The first stage in the page life cycle is initialization. This is fired after the page's control tree has been successfully created. All the controls that are statically declared in the .aspx file will be initialized with the default values. Controls can use this event to initialize some of the settings that can be used throughout the lifetime of the incoming web request.

After initialization, page framework loads the view state for the page. Viewstate is a collection of name/value pairs, where control's and page itself store information that is persistent among web requests. It contains the state of the controls the last time the page was processed on the server. By overriding LoadViewState() method, component developer can understand how Viewstate is restored.

Once Viewstate is restored, control will be updated with the client side changes. It loads the posted data values. The PostBackData event gives control a chance to update their state that reflects the state of the HTML element on the client.

At the end of the posted data changes event, controls will be reflected with changes done on the client. At this point, load event is fired.

Key event in the life cycle is when the server-side code associated with an event triggered on the client. When the user clicks on the button, the page posts back. Page framework calls the RaisePostBackEvent. This event looks up for the event handler and run the associated delegate.

After Postback event, page prepares for rendering. PreRender event is called. This is the place where user can do the update operations before the Viewstate is stored and output is rendered. Next stage is saving view state, all the values of the controls will be saved to their own Viewstate collection. The resultant Viewstate is serialized, hashed, base24 encoded and associated with the _Viewstate hidden field.

Next the render method is called. This method takes the HtmlWriter object and uses it to accumulate all HTML text to be generated for the control. For each control the page calls the render method and caches the HTML output. The rendering mechanism for the control can be altered by overriding this render method.

The final stage of the life cycle is unload event. This is called just before the page object is dismissed. In this event, you can release critical resources you have such as database connections, files, graphical objects etc. After this event browser receives the HTTP response packet and displays the page.

Keyboard Shortcut key For Visual Studio 2008,2012,2010

General Shortcut Keys

ShortCut	Description
Ctrl-X or Shift-Delete or Ctrl-L	Cuts the currently selected item to the clipboard
Ctrl-Del	Delete next "word"
Ctrl-C or Ctrl-Insert	Copies the currently selected item to the clipboard
Ctrl-V or Shift-Insert	Pastes the item from the clipboard at the cursor location
Ctrl-Z or Alt-Backspace	Undo the previous editing action
Ctrl-Space	To see intelligence dialog
Ctrl-Y or Ctrl-Shift-Z	Redo the previous undo action
Ctrl-S	Saves the current selected file
Ctrl-Shift-S	Saves all files and projects
Ctrl-P	Displays the Print dialog
F7	Switches from the design view to the code view in the editor
Shift-F7	Switches from the code view to the design view in the editor
Shift-F8 or F8	Navigate to compile time errors
Alt-Shift-A	Add Existing Item(file) to selected project
Ctrl-Shift-A	Add New Item(file) to selected project
Shift-F9	Display the selected item quick output means contains value while debugging
F12	Moves the cursor to the selected method, variable, class definition.
Shift-F12	Finds the reference to the selected method, variable, class or the item under the cursor
Ctrl-}	Match curly braces, brackets or compiler directives
Ctrl-Shift-}	Select text between matched braces, brackets or compiler directives

Text Navigation Shortcut Keys

ShortCut	Description
Ctrl-End	Moves the cursor to the end of the document
Ctrl-Home	Moves the cursor to the start of the document
Ctrl-G	Displays the Go to Line dialog. If the debugger is running, the dialog also lets you specify addresses or function names to go to
Ctrl-]	Moves the cursor to the matching brace in the document. If the cursor is on an opening brace, this will move to the corresponding closing brace and vice versa
Ctrl-K, Ctrl-N	Moves to the next bookmark in the document
Ctrl-K, Ctrl-P	Moves to the previous bookmark
Ctrl-K, Ctrl-I	Displays Quick Info, based on the current language
Ctrl-Down Arrow	Scrolls text down one line but does not move the cursor. This is useful for scrolling more text into view without losing your place. Available only in text editors
Ctrl-Up Arrow	Scrolls text up one line but does not move the cursor. Available only in text editors
Ctrl-Right Arrow	Moves the cursor one word to the right
Ctrl-Left Arrow	Moves the cursor one word to the left
Ctrl-Shift-1	Navigates to the next definition, declaration, or reference of an item. Available in the object browser and Class View window. Also available in source editing windows if you have already used the Edit.GoToReference (Shift-F12) shortcut
Ctrl-Shift-2	Navigates to the previous definition, declaration, or reference of an item

Text Manipulation Shortcut Keys

ShortCut	Description
Shift-Tab	Moves current line or selected lines one tab stop to the left
Backspace or	Deletes one character to the left of the cursor
Shift-Backspace
Ctrl-G	Go to Particular line
Ctrl-K, Ctrl-C	Marks the current line or selected lines of code as a comment, using the correct comment syntax for the programming language
Ctrl-K, Ctrl-U	Removes the comment syntax from the current line or currently selected lines of code
Ctrl-T or	Swaps the characters on either side of the cursor. (For example, AC|BD becomes AB|CD.) Available only in text editors
Shift-Enter
Ctrl-K, Ctrl-L	Removes all unnamed bookmarks in the current document
Ctrl-M, Ctrl-O	Automatically determines logical boundaries for creating regions in code, such as procedures, and then hides them. This collapses all such regions in the current document
Alt-Right Arrow or	Displays statement completion based on the current language or autocompletes word if existing text unambiguously identifies a single symbol
Ctrl-Spacebar
Ctrl-K, Ctrl-\	Removes horizontal whitespace in the selection or deletes whitespace adjacent to the cursor if there is no selection
Ctrl-K, Ctrl-F	Applies the indenting and space formatting for the language as specified on the Formatting pane of the language in the Text Editor section of the Options dialog to the selected text.
Ctrl-L	Cuts all selected lines or the current line if nothing has been selected to the clipboard
Ctrl-Shift-L	Deletes all selected lines or the current line if no selection has been made
Ctrl-Enter	Inserts a blank line above the cursor
Ctrl-Shift-Enter	Inserts a blank line below the cursor
Shift-Alt-T	Moves the line containing the cursor below the next line
Ctrl-J	Lists members for statement completion when editing code
Ctrl-U	Changes the selected text to lowercase characters
Ctrl-Shift-U	Changes the selected text to uppercase characters
Ctrl-Shift-Spacebar	Displays a tooltip that contains information for the current parameter, based on the current language
Ctrl-M, Ctrl-U	Removes the outlining information for the currently selected region
Ctrl-M, Ctrl-P	Removes all outlining information from the entire document
Ctrl-R, Ctrl-P	Swaps the anchor and endpoint of the current selection
Ctrl-M, Ctrl-L	Toggles all previously marked hidden text sections between hidden and display states
Ctrl-K, Ctrl-K	Sets or removes a bookmark at the current line
Ctrl-M, Ctrl-M	Toggles the currently selected hidden text section or the section containing the cursor if there is no selection between the hidden and display states
Ctrl-K, Ctrl-H	Sets or removes a shortcut in the tasklist to the current line
Ctrl-R, Ctrl-R	Enables or disables word wrap in an editor
Ctrl-R, Ctrl-W	Shows or hides spaces and tab marks
Ctrl-Delete	Deletes the word to the right of the cursor
Ctrl-Backspace	Deletes the word to the left of the cursor
Ctrl-Shift-T	Transposes the two words that follow the cursor. (For example, |End Sub would be changed to read Sub End|.)

Project Related Shortcut Keys

ShortCut	Description
Ctrl-Shift-B	Builds the solution
Ctrl-N	Displays the New File dialog. Note: files created this way are not associated with a project. Use Ctrl-Shift-A to add a new file in a project
Ctrl-Shift-N	Displays the New Project dialog
Ctrl-O	Displays the Open File dialog
Ctrl-Shift-O	Displays the Open Project dialog
Shift-Alt-A	Displays the Add Existing Item dialog
Ctrl-Shift-A	Displays the Add New Item dialog
Ctrl-Alt-Insert	Allows you to override base class methods in a derived class when an overridable method is highlighted in the Class View pane
Ctrl-M-O	Collapse all the methods, classes, regions in the current code behind or class file
Ctrl-M-P or Ctrl-M-L	Expands all the methods, classes, regions in the current code behind or class file
Ctrl-F	Displays the Find dialog
Ctrl-H	Displays the Replace dialog
Ctrl-Shift-F	Find the reference of selected item into entire solution.
Ctrl-Tab	Move from one opened file to another opened file in visual studio.
F9	Sets or removes a breakpoint at the current line
Ctrl-F9	Enables or disables the breakpoint on the current line of code. The line must already have a breakpoint for this to work
F5	Runs the code with invoking the debugger.
Ctrl-F5	Runs the code without invoking the debugger.
F4 or Alt-Enter	Displays the Properties window, which lists the design-time properties and events for the currently selected item
Ctrl-Alt-S	Displays the Server Explorer window, which allows you to view and manipulate database servers, event logs, message queues, web services, and   many other operating system services
Ctrl-Alt-L	Displays the Solution Explorer, which lists the projects and files in the current solution
Ctrl-Alt-X	Displays the Toolbox, which contains controls and other items that can be dragged into editor and designer windows
Ctrl-Alt-I	Displays the Immediate window, where you can find the controls or variables values or can do data manipulation during debugging