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What Do you know about SharePoint Object Model?

Posted By :Gowthammanju     Posted Date :October 31, 2011    Points :40   Category :SharePoint 
In Sharepoint Object model there are two Important namespaces.


The Microsoft.Office.Server namespace is the root namespace of all Office Server objects and Microsoft.SharePoint is the root namespace for all WSS objects


You can also find related Interview Question to What Do you know about SharePoint Object Model?  below: 

what is sharepoint client object model?

  

The Client Object Model is a new programming interface for SharePoint 2010 where code runs on a user's client machine against a local object model and interacts with data on the SharePoint Server. Client OM methods can be called from JavaScript, .NET code or Silverlight code and makes building rich client applications for SharePoint easy. (More...)

What has Changed in SharePoint 2010 Object model?

  
Microsoft has replaced the "12 hive" structure that we had in SharePoint 2007 with "14 Hive" structure in 2010.

It has apparently added four new folders to its hive.

The Folders are :
* Policy
* UserCode
* WebClients
* WebServices (More...)

Q. What Do you know about SharePoint Object Model?

  

Ans. In Sharepoint Object model there are two Important namespaces, Microsoft.Office.Server and Microsoft.SharePoint . The Microsoft.Office.Server namespace is the root namespace of all Office Server objects and Microsoft.SharePoint is the root namespace for all WSS objects.


Q. How Do you use\refer External Javascript and Css file in your WebPart?

Ans. You can use javascript,Css or Image files placed in _Layouts or any other location by registering them on the webpart page.


Q. How Do you bind a Drop-Down Listbox with a Column in SharePoint List ?

Ans.
Method 1 : You can get a datatable for all items in the list and add that table to a data set. Finally, specify the dataset table as datasource for dropdown listbox.

Method 2 : You can also use SPDatasource in your aspx or design page.

Q. What are the various tools used for creating the solutions?

Ans. Some of the common tools are

1. WsPBuilder

2. VSeWSS (Visual Studio extensions for WSS )

3. Stsdev


(More...)

Write Program to Fetch the username using sharepoint object model

  
Spsite rootsite=new SPSite("http://svr-pc:1010/");
SPWeb Oweb=roosite.RootWeb;
SPUserCollection userList=rootWeb.AllUsers;
string usrnamr;
foreach(SPUser user in userList)
{

usrnamr= user.Name;
} (More...)

Explain SharePoint Object Model?

  
In Sharepoint Object model there are two Important namespaces.
The Microsoft.Office.Server namespace is the root namespace of all Office Server objects and Microsoft.SharePoint is the root namespace for all WSS objects.
The Chart Below illustrates some of the key classes contained in each of these namespaces, as well as to which functional area they belong.
Document Libraries (Microsoft.SharePoint)
SPDocumentLibrary , SPPictureLibrary
Business Data Catalog (Microsoft.Office.Server.ApplicationRegistry.Administration)
EntityCollection , ApplicationRegistry
Features (Microsoft.SharePoint)
SPFeatureDefinition, SPFeatureScope, SPElementDefinition, SPFeature, SPFeatureProperty
Sites (Microsoft.SharePoint)
SPSite, SPSiteAdministration, SPSiteCollection, SPWeb
Meetings (Microsoft.SharePoint.Meetings)
SPMeeting, MtgUtility
User Profiles (Microsoft.Office.Server.UserProfiles)
UserProfile, UserProfileManager
Solutions (Microsoft.SharePoint.Administration)
SPsolution, SPFeatureReceiver, SPSolutionCollection
Lists (Microsoft.SharePoint)
SPList, SPListItem, SPListItemCollection (More...)

What is Object Oriented model?

  
This model is based on collection of objects. An object contains values stored in instance variables with in the object. An object also contains bodies of code that operate on the object. These bodies of code are called methods. Objects that contain same types of values and the same methods are grouped together into classes. (More...)

what are the classes in share point client object model?

  
1. Client Context
2.Site
3.Web
4.List
5.List Item
6.Field
(More...)

Why do we need Client Object Model?

  
Microsoft was constantly getting request from customers for more webservices. to make it easier to get data from outside of sharepoint (for example : to show sharepoint data on your desktop, by consuming a webservices), So there are two options: 1) Request microsoft to produce more web serivices or 2) Create your own custom web services, Instead creating more and more web services over and over agin in each release, Microsoft came up with a different approach , they created someting called 'Client Object Model'. (More...)

How many types of Client Object model extension are available in 2010 and when would you use one or the other.

  

Ans. To develop rich client side solutions, three set of client-side APIs has been introduced in the Microsoft.SharePoint.Client namespace. The three APIs are targeted for three different types of clients.
1. .net Managed applications - These are used when we have to create console applications or window applications, web applications which are not running inside SharePoint Contex.
2. For Silverlight applications
3. ECMAScript - It is a client object model extension for using with JavaScript or JScript. This is used for creating applications which are hosted inside SharePoint. For example, web part deployed in SharePoint site can use this JavaScript API for accessing SharePoint from browser using JavaScript. (More...)

How does Client object model works ?

  
Ans. When we use SharePoint client API's to perform a specific task, the SharePoint Foundation 2010 managed client object model bundles up these uses of the API into XML and sends it to the server that runs SharePoint Foundation. The server receives this request, and makes appropriate calls into the object model on the server, collects the responses, forms them into JavaScript Object Notation (JSON), and sends that JSON back to the SharePoint Foundation 2010 managed client object model. The client object model parses the JSON and presents the results to the application as .NET Framework objects (or ECMAScript objects for ECMAScript) (More...)

How many types of Client Object model extension are available in 2010 and when would you use one or the other.

  

Ans. To develop rich client side solutions, three set of client-side APIs has been introduced in the Microsoft.SharePoint.Client namespace. The three APIs are targeted for three different types of clients.
1. .net Managed applications - These are used when we have to create console applications or window applications, web applications which are not running inside SharePoint Contex.
2. For Silverlight applications
3. ECMAScript - It is a client object model extension for using with JavaScript or JScript. This is used for creating applications which are hosted inside SharePoint. For example, web part deployed in SharePoint site can use this JavaScript API for accessing SharePoint from browser using JavaScript. (More...)

What are the Authentication methods for your client object model application ?

  

Ans. Basically there are three (3) authentication options you can use when you're working with the Client Object Model in SharePoint 2010:

* Anonymous
* Default
* FormsAuthentication

You can specify clientContext.Authentication = Anonymous\Default\FormsAuthentication, If you do not choose an authentication method in your code, the application will default to using the client's Windows Credentials (DefaultCredentials). (More...)

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