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Explain the Shaepoint WebPart life cycle?

Posted By :Sagar Pardeshi     Posted Date :August 30, 2013    Points :40   Category :SharePoint 

. OnInit
. OnLoad
. CreateChildControls
. OnPreRender

You can also find related Interview Question to Explain the Shaepoint WebPart life cycle?  below: 

Explain the life cycle of an ASP .NET page.

Life cycle of ASP.Net Web Form
Page Request >> Start >> Page Init >> Page Load >> Validation >>
PostBack Event Handling >> Page Rendering >> Page Unload
Page Request - When the page is requested ASP.Net determines
whether the page is to be parsed and compiled or a cached verion
of the page is to be sent without running the page.
Start - Page propertied REQUEST and RESPONSE are SET, if the
page is pastback request then the IsPostBack property is SET and
in addition to this UICulture property is also SET.
Page Initilization - In this the UniqueID of each property is SET.
If the request was postback the data is not yet loaded from the
Page Load - If it was a postback request then the data gets loaded
in the control from the ViewState and control property are set.
Validation - If any control validation present, they are performed
and IsValid property is SET for each control.
PostBack Event Handling - If it was a postback request then any
event handlers are called.
Page Rendering - Before this the viewstate is saved from the page
and RENDER method of each page is called.
Page Unload - Page is fully rendered and sent to the client(Browser)
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Which is the first event in page life-cycle Event?

Page_PreInit is the First event that will be executed on the page. (More...)

Which is the first event in page life-cycle Event?

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What are the phases in the Systems Development Life Cycle?

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page life cycle in Asp.net?

1. OnInit (Init) -- Inializes all Child controls on the Page

2. LoadControlState -- Loads the Control State

3. LoadViewState -- Loads the View State

4. LoadPostData -- Control properties are set according to the received form data

5. Load -- Actions can be performed on the controls as all the pre-activities are complete by this time

6. RaisePostDataChangedEvent -- This event is raised if data has been changed in previous and Current Postbacks.

7. RaisePostBackEvent -- This event handles the user action that caused the Postback.

8. PreRender (OnPreRender) -- This event takes place between postback and saving viewstate. Till this stage changes will be saved to the control.

9. SaveControlState -- Self Explanatory

10. SaveViewState -- Self Explanatory

11. Render -- Generates artifacts at Client side (HTML,DHTML,Scripts) to properly display controls

12. Dispose -- Releases unmanaged Resource ( Database connections, file handles)

13. Unload -- Releases managed Resources ( Instances created by CLR) (More...)

What are different stages of ASP.Net Page Life cycle?

Each ASP.Net Web page performs following stages/events

Page Initialization (Page_Init event)
Page Loading (Page_Load event)
Page Prerender (Page_Prerender)
Page Render (Page_Render)
Page Unload (Page_Unload)


what are the list the events in page life cycle.

Below is the list of page life cycle in asp.net-
1) Page_PreInit
2) Page_Init
3) Page_InitComplete
4) Page_PreLoad
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6) Page_LoadComplete
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What's Sharepoint page life cycle?

Sharepoint page Life Cycle:

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2.Asp.Net calls the WSS file Provider
3.WSS file Provider return the pages from file or database
4.page is parsed by SafeMode parsor if required
5.Returned page is compiled by Asp.Net compiler
6.WSS file Provider collects the page layout class and complies it
7.Asp.Net engine adds SharePoint Context Data to the site meta data and retrieves the associatedmaster page.
8.Master page got compiled responded back to the user. (More...)

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It is a useful, memory-saving technique for multiprogrammed timesharing systems. A Reentrant Procedure is one in which multiple users can share a single copy of a program during the same period. Reentrancy has 2 key aspects: The program code cannot modify itself, and the local data for each user process must be stored separately. Thus, the permanent part is the code, and the temporary part is the pointer back to the calling program and local variables used by that program. Each execution instance is called activation. It executes the code in the permanent part, but has its own copy of local variables/parameters. The temporary part associated with each activation is the activation record. Generally, the activation record is kept on the stack.

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Explain Belady's Anomaly?

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Explain manifest & metadata?

Manifest is metadata about assemblies. Metadata is machine-readable information about a resource, or ""data about data." In .NET, metadata includes type definitions, version information, external assembly references, and other standardized information.

Manifest: Manifest describes assembly itself. Assembly Name, version number, culture, strong name, list of all files, Type references, and referenced assemblies.

Metadata: Metadata describes contents in an assembly classes, interfaces, enums, structs, etc., and their containing namespaces, the name of each type, its visibility/scope, its base class, the nterfaces it implemented, its methods and their scope, and each method's parameters, type's properties, and so on.

Shashi Ray (More...)

Explain Virtual Function in C#.

Virtual functions implement the concept of polymorphism are the same as in C#, except that you use the override keyword with the virtual function implementaion in the child class.

The parent class uses the same virtual keyword. Every class that overrides the virtual method will use the override keyword.

class Shape{
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{ Console.WriteLine("Shape.Draw") ; }
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