SharePoint 2010 Service Application Design Best Practices
Through
SharePoint 2010, there is an improvement of the services infrastructure
that was previously introduced in an earlier version. This
infrastructure also hosts services for the SharePoint Foundation 2010.
The configuration of services offered is very flexible. This allows the
individual services to be configured independent of each other. It also
makes it possible for 3rd party companies to be able to add services to
that platform. The configuration of services aren’t exclusive to
SharePoint Server. The services aren’t restricted to Shared Services
Providers.
When service applications are deployed from a farm there are a couple of different methods that can be used.
They
include the use of Windows PowerShell, adding services one at a time
through the Manage Service Applications page, and choosing services for
running the SharePoint Products Configuration Wizard.
The
infrastructure of the services has been updated so that there is more
control over the types of services that have been deployed. There is
also control over the types of service applications that have been
shared. Only the service applications that are necessary for a farm can
be deployed. The various web applications can be configured so that they
only use certain service applications. This is better than them using
all of the various services that have been deployed. Service
applications can be shared across various web applications that are
within the same farm. All of the service applications that are included
in a default group will remain unless you change them. There are
settings for service applications that can be created. You can add or
remove service applications in that default group any time you want to.
The
creation of web applications allow you to select the default group you
want or to create one that is customized. If you want to customize your
service applications you can do by selecting those that you want to be
part of the web application. When custom groups are created in Central
Administration, they can’t be used for all of your web applications.
When you select custom to create a web application you will limit them
to only that specific web application you happen to be using. Each of
the service applications has a single Internet Information Services
website. This is the default setting and you won’t be able to change it.
However, you do have the option of customizing how it is configured for
various application groups.
There
are several characteristics of a farm that you need to be familiar
with. Web applications will connect to the default group or a custom
group of service applications. All of the service applications will be
found within the same Internet Information Services website. Service
applications are in a group as defaults or customized. However, not all
of the service applications have to be placed into one of those groups.
They can be used by a single web application if you wish.
It
is possible for service applications to be deployed to different
applications pools. This results in process isolation occurring. If you
want to optimize how your farm performs then it is recommended that you
deploy service applications to only one application pool. In order for
that isolation to occur with a service application, you need to create a
new application for the pool service application.
While
creating a service application there is a connection for the service
application that is being created at the same time. There is a
connection that is a virtual entity for connecting to web applications.
With Windows PowerShell these connections are known as proxies. A proxy
will be at the end of the type description for a connection which is
through the Manage Service Application in Central Administration. Some
of these connections may include settings that you can modify. This
includes the Managed Metadata service application, Term Store
Administrators, and Default Language.
When
you directly manage service applications in Central Administration you
can manage and monitor them from a remote location. They can also be
managed and scripted through Windows PowerShell. There are some service
applications that are shared among many farms. Others though can only be
shared in a singular fashion with a given farm server.
Computing
intense service applications that operate within a central farm. This
is done to minimize the overhead costs relating to administration. This
is also to help keep everything operating efficiently, even as the
requirements of the farm grow. If you use service applications to
support sharing across farms, they should be controlled by a central
farm. Then they can be consumed from that core location. For each of the
web applications that will be configured, use service applications from
different farms.
Monday, 11 July 2011
SHAREPOINT 2010 Question
1) What are Web Applications in SharePoint?
An IIS Web site created and used by SharePoint 2010. Saying an IIS virtual server is also an acceptable answer.
2) What is an application pool?
A group of one or more URLs that are served by a particular worker process or set of worker processes.
3) Why are application pools important?
They provide a way for multiple sites to run on the same server but still have their own worker processes and identity.
4) What are zones?
Different logical paths (URLs meaning) of gaining access to the same SharePoint Web application.
5) What are Web Application Policies?
Enables
security policy for users at the Web application level, rather than at
the site collection or site level. Importantly, they override all other
security settings.
6) What is a site collection?
A
site collection contains a top-level website and can contain one or
more sub-sites web sites that have the same owner and share
administration settings.
7) What are content databases?
A content database can hold all the content for one or more site collections.
8) What is a site?
A site in SharePoint contains Web pages and related assets such as lists, all hosted within a site collection.
9) What are My Sites?
Specialized SharePoint sites personalized and targeted for each user.
10) What is the difference between Classic mode authentication and Claims-based authentication?
As
the name implies, classic authentication supports NT authentication
types like Kerberos, NTLM, Basic, Digest, and anonymous. Claims based
authentication uses claims identities against a against a trusted
identity provider.
11) When would you use claims, and when would you use classic?
Classic is more commonly seen in upgraded 2007 environments whereas claims are the recommended path for new deployments.
12) Describe the potential components for both a single server, and multiple servers, potentially several tiered farms:
A
single-server SharePoint Server 2010 environment leverages a built-in
SQL Server 2008 Express database. The problems with this environment is
scalability, not being able to install the with built-in database on a
domain controller, the database cannot be larger than 4 GB, and you
cannot use User Profile Synchronization in a single server with built-in
database installation.
An
example of a multiple tier farm would be a three-tier topology,
considered one of the more efficient physical and logical layouts to
supports scaling out or scaling up and provides better distribution of
services across the member servers of the farm. This is considered a
good architecture since one can add Web servers to the Web tier, add app
servers to the application tier, and add database servers to the
database tier.
SharePoint Backup and Restore Questions
13) What are some of the tools that can be used when backing up a SharePoint 2010 environment?
- SharePoint farm backup and recovery
- SQL Server
- System Center Data Protection Manager
14) What Microsoft tool can be used for incremental backups?
System Center Data Protection Manager
Managed Metadata Questions
15) What is Managed Metadata?
Managed
metadata is a hierarchical collection of centrally managed terms that
you can define, and then use as attributes for items.
16) What are Terms and Term Sets?
A term is a word or a phrase that can be associated with an item. A term set is a collection of related terms.
17) How do Terms And Term Sets relate to Managed Metadata?
Managed
metadata is a way of referring to the fact that terms and term sets can
be created and managed independently from the columns themselves.
18) Are there different types of Term Sets?
There
are Local Term Sets and Global Term Sets, one created within the
context of a site collection and the other created outside the context
of a site collection, respectively.
19) How are terms created and used?
There are several ways; however the most common is to use the Term Store Management Tool.
20) How is Managed Metadata, and the related Term technology used?
Through
the UI, the most common use is through the managed metadata list column
which allows you to specify the term set to use. It also related to
searching and enhancing the user search experience.
Sandbox Solutions Questions
21) What is a sandboxed solution?
Components
that are deployed to run within the sandboxed process rather than
running in the production Internet Information Services (IIS) worker
process.
22) What are some examples of things that might run within the SharePoint sandbox?
Any of the following are acceptable answers:
Web Parts
Event receivers
Feature receivers
Custom Microsoft SharePoint Designer workflow activities
Microsoft InfoPath business logic
others….
23) Why are sandboxed solutions used?
Primarily
because they promote high layers of isolation. By default they run
within a rights-restricted, isolated process based around Code Access
Security (CAS). Isolation is possible to increase with activities like
running the sandboxing service on only specific SharePoint 2010 servers.
SharePoint Search Questions
24) What is a content source in relation to SharePoint search? What’s the minimum amount of content sources?
A
content source is a set of options that you can use to specify what
type of content is crawled, what URLs to crawl, and how deep and when to
crawl. You must create at least one content source before a crawl can
occur.
25) What is a search scope?
A search scope defines a subset of information in the search index. Users can select a search scope when performing a search.
26) What is a federated location with SharePoint search?
Federated locations provide information that exists outside of your internal network to your end-users.
27) How does managed metadata affect search?
Enhances
the end-user search experience by mapping crawled properties to managed
properties. Managed properties show up in search results and help users
perform more successful queries.
28) What is query logging in SharePoint 2010?
Collects
information about user search queries and search results that users
select on their computers to improve the relevancy of search results and
to improve query suggestions.
29) What authentication type does the SharePoint crawler use?
The crawl component requires access to content using NTLM authentication.
Services Architecture Questions
30) Please describe what a Service Application is in SharePoint 2010.
Service
applications in SharePoint 2010 are a set of services that can
possibly be shared across Web applications. Some of these services may
or may not be shared across the SharePoint 2010 farm. The reason these
applications are shared is the overall reduction of resources required
to supply the functionality these services cultivate.
31) Please provide an example of one of these service applications.
Any of the below are acceptable answers:
Access Services
Business Data Connectivity service
Excel Services Application
Managed Metadata service
PerformancePoint Service Application
Search service
Secure Store Service
State service
Usage and Health Data Collection service
User Profile service
Visio Graphics Service
Web Analytics service
Word Automation Services
Microsoft SharePoint Foundation Subscription Settings Service
32) What are Service Application Groups used for?
Just provides a logical grouping of services that are scoped to a particular Web Application.
33) How are Service Applications deployed in terms of IIS (Internet Information Services)?
They are provisioned as a single Internet Information Services (IIS) Web site.
34) Explain how connections are managed with Service Applications.
A virtual entity is used that is referred to as a proxy, due to label in PowerShell.
35) What are some common examples of SharePoint 2010 services architectures, and what are the advantages of each design?
The
three most popular designs are single farms with either a single
service application group or multiple service application groups,
or Enterprise services farms.
Single
farms with a single service application group are generally the most
common, and have the advantages of easy deployment, simple service
application allocation, effective resource utilization and cohesive
management.
Single
farms with multiple service application groups is less common, and have
the advantage of potential individual management of service
applications as well as allowing data isolation, and while being more
complex to deploy and maintain allows targeting of sites to particular
service applications.
Enterprise
Service Farms is pretty uncommon as it is a complete farm dedicated to
Service Applications but promotes autonomous management and high levels
of data isolation.
36) Are there any other type of relevant service architectures?
Depending
on the environment requirements, a specialized farm can also be used in
order to deploy specific services tailored to the organizational
requirements which can aid in scaling out and conservation of resources.
37) What is the User Profile service?
Allows
configuring and managing User profile properties, Audiences, Profile
synchronization settings, organization browsing and management settings,
and My Site settings.
38) What are User Profiles?
Aggregates
properties from diverse identity content sources together to create
unified and consistent profiles across an organization, used throughout
the SharePoint environment.
39) What is Excel Services?
Allows
sharing, securing, managing, and using Excel 2010 workbooks in a
SharePoint Server Web site or document library. Excel Services consists
of the Excel Calculation Services (ECS), Microsoft Excel Web Access
(EWA), and Excel Web Services (EWS) components.
40) What is PerformancePoint Services?
Allows users to monitor and analyze a business by building dashboards, scorecards, and key performance indicators (KPIs).
41) What is Visio Services?
Allows
users to share and view Microsoft Visio Web drawings. The service also
enables data-connected Microsoft Visio 2010 Web drawings to be refreshed
and updated from various data sources.
42) What is Access Services?
Allows
users to edit, update, and create linked Microsoft Access 2010
databases that can be viewed and manipulated by using an internet
browser, the Access client, or a linked HTML page.
43) What is the Secure Store Service (SSS)?
A secure database for storing credentials that are associated with application IDs
44) What is Content Deployment?
Content deployment enables you to copy content from a source site collection to a destination site collection.
Backup / DR Questions
45)
Describe how redundancy can be built into a SharePoint environment.
Please be specific in regards to any auxiliary components.
Multiple front-end
web servers (WFE’s) can be deployed and correlated through Windows NLB
or anything approach. Application servers can be deployed into the farm
for a variety of purposes, depending on organizational requirements.
Databases can be clustered or mirrored, again depending on requirements
and environment.
46) From a basic standpoint, what is the difference between SQL clustering and mirroring?
Clustering
provides a failover scenario whereby one or more nodes can be swapped
as active depending on whether a node goes down. In mirroring,
transactions are sent directly from a principal database and server to a
mirror database to establish essentially a replica of the database.
Governance Questions
47) What Is Governance in terms of SharePoint 2010?
Governance
is the set of policies, roles, responsibilities, and processes that
guide, direct, and control how an organization’s business divisions and
IT teams cooperate to achieve business goals.
48) What are some useful, OOB features of SharePoint that aid with governance of an environment?
Any
of the below are acceptable answers. There are some others but these
are the major ones that I generally look for from a candidate:
Site templates – consistent branding, site structure, and layout can be enforce a set of customizations that are applied to a site definition.
Quotas – limits to the amount of storage a site collection can use.
Locks - prevent users from either adding content to a site collection or using the site collection.
Web application permissions and policies – comprehensive security settings that apply to all users and groups for all site collections within a Web application.
Self-service site creation - enables users to create their own site collections, thus must be incorporated into a governance scheme.
Monitoring Questions
49) Describe the monitoring features that are baked into SharePoint 2010.
Diagnostic
logging captures data about the state of the system, whereas health and
usage data collection uses specific timer jobs to perform monitoring
tasks, collecting information about:
- Performance Counter Fata
- Event Log Data
- Timer Service Data
- Metrics For Site Collections and Sites
- Search Usage Data
General Workflow Questions
50) What is a declarative workflow? Can non-authenticated users participate in workflows?
Workflows
created by using Microsoft SharePoint Designer 2010, the default
setting enables deployment of declarative workflows. Yes, however you do
not give non-authorized users access to the site. The e-mail message
and attachments sent from notifications might contain sensitive
information.
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1) What are the two base classes a WebPart you are going to use within SharePoint 2007 can inherit from?
There
are two base classes that a WebPart which is going to be consumed by
SharePoint can inherit from, either the SharePoint WebPart Base class or
the ASP.NET 2.0 WebPart base class. When inheriting from the SharePoint
WebPart Base class your derived WebPart class will inherit from
Microsoft.SharePoint.WebPartPages.WebPart. When inheriting from the
ASP.NET 2.0 WebPart base class your derived WebPart class will inherit
from System.Web.UI.WebControls.WebParts.WebPart. It is considered good
practice to use the ASP.NET WebPart base class since the old base class
is meant for backwards compatibility with previous version of
SharePoint, however there are four exception when it is better to
leverage functionality from the SharePoint WebPart base class:
Cross page connections
Connections between Web Parts that are outside of a Web Part zone
Client-side connections (Web Part Page Services Component)
Data caching infrastructure
2) What are the differences between the two base classes and what are the inherit benefits of using one over another?
The
difference is the Microsoft.SharePoint.WebPartPages.WebPart base class
is meant for backward compatibility with previous versions of
SharePoint. The benefit of using the SharePoint WebPart base class is it
supported:
Cross page connections
Connections between Web Parts that are outside of a Web Part zone
Client-side connections (Web Part Page Services Component)
Data caching infrastructure
ASP.NET
2.0 WebParts are generally considered better to use because SharePoint
is built upon the ASP.NET 2.0 web architecture. Inheriting from the
ASP.NET 2.0 base class offers you features that inherit to ASP.NET 2.0,
such as embedding resources as opposed to use ClassResources for
deployment of said types.
3) What is the GAC?
The
GAC stands for the global assembly cache. It is the machine wide code
cache which will give custom binaries place into the full trust code
group for SharePoint. Certain SharePoint assets, such as Feature
Receivers need full trust to run correctly, and therefore are put into
the GAC. You should always try to avoid deployment to the GAC as much as
possible since it will possibly allow development code to do more than
it was intended to do.
4) What is strong naming (signing) a WebPart assembly file mean?
Signing
an assembly with a strong name (a.k.a strong naming) uses a
cryptographic key pair that gives a unique identity to a component that
is being built. This identity can then be referred throughout the rest
of the environment. In order to install assemblies into the GAC, they
must be strongly named. After signing, the binary will have a public key
token identifier which can be use to register the component in various
other places on the server.
5) What are safe controls, and what type of information, is placed in that element in a SharePoint web.config file?
When
you deploy a WebPart to SharePoint, you must first make it as a safe
control to use within SharePoint in the web.config file. Entries made in
the safe controls element of SharePoint are encountered by the
SharePointHandler object and will be loaded in the SharePoint
environment properly, those not will not be loaded and will throw an
error.
In
the generic safe control entry (this is general, there could be more),
there is generally the Assembly name, the namespace, the public key
token numeric, the typename, and the safe declaration (whether it is
safe or not). There are other optional elements.
6) What is the CreateChildControls() method? How can you use it to do something simple like displaying a Label control?
The
CreateChildControls method in WebParts is used to notify the WebPart
that there are children controls that should be output for rendering.
Basically, it will add any child ASP.NET controls that are called
instantiating each control with its relevant properties set, wire any
relevant event handlers to the control, etc. Then the add method of the
control class will add the control to the controls collection. In the
relevant WebPart render method, the EnsureChildControls method can be
called (or set to false if no child controls should be called) to ensure
that the CreateChildControls method is run. When using
CreateChildControls it implies that your WebPart contains a composition
of child controls.
In
order to create something like a label control in Create, you would
create a new label control using the new keyword, set the various
properties of the control like Visible=True and ForeColor = Color.Red,
and then use Controls.Add(myLabelControl) to add the control to the
controls collection. Then you can declare EnsureChildControls in the
Render method of the WebPart.
7) What does the RenderContents method do in an ASP.NET 2.0 WebPart?
The
render contents method will render the WebPart content to the writer,
usually an HtmlTextWriter since WebParts will output to an HTML stream.
RenderContents is used to tell how the controls that are going to be
displayed in the WebPart should be rendered on the page.
*** Side Question: I
got asked what the difference between CreateChildControls and the
RenderContents method. The CreateChildControls method is used to add
controls to the WebPart, and the RenderContents method is used to tell
the page framework how to render the control into HTML to display on a
page.
8) What is the WebPartManager sealed class? What is its purpose?
The
WebPartManager sealed class is responsible for managing everything
occurring on a WebPart page, such as the WebParts (controls), events,
and misc. functionality that will occur in WebPartZones. For example,
the WebPartManager is responsible for the functionality that is provided
when you are working with moving a WebPart from WebPartZone to
WebPartZone. It is known as the “the central class of the Web Part
Control Set.”
*** Side Question: I
got asked how many WebPartManager controls should be on a page. In
order to have WebParts on a page there has to be just one WebPartManager
control to manage all the WebParts on the page.
9) What is a SPSite and SPWeb object, and what is the difference between each of the objects?
The
SPSite object represents a collection of sites (site collection [a top
level sites and all its subsites]). The SPWeb object represents an
instance SharePoint Web, and SPWeb object contains things like the
actual content. A SPSite object contains the various subsites and the
information regarding them.
10) How would you go about getting a reference to a site?
C#:
- oSPWeb = oSPSite.OpenWeb();
11) What does a SPWebApplication object represent?
The
SPWebApplication objects represents a SharePoint Web Application, which
essentially is an IIS virtual server. Using the class you can instigate
high level operations, such as getting all the features of an entire
Web Application instance, or doing high level creation operations like
creating new Web Applications through code.
12) Would you use SPWebApplication to get information like the SMTP address of the SharePoint site?
Yes,
since this is a Web Application level setting. You would iterate
through each SPWebApplication in the SPWebApplication collection, and
then use the appropriate property calls (OutboundMailServiceInstance) in
order to return settings regarding the mail service such as the SMTP
address.
Side Question: I
got asked if there are other ways to send emails from SharePoint. The
answer is yes, there is. You can use the SendMail method from the
SPutility class to send simple emails, however it is not as robust as
using the System.Net.Mail functionality since it doesn’t allow things
like setting priorities on the email.
13) How do you connect (reference) to a SharePoint list, and how do you insert a new List Item?
C#:
- {
- using(SPWeb myWeb = mySite.OpenWeb())
- {
- SPList interviewList = myWeb.Lists["listtoinsert"];
- SPListItem newItem = interviewList.Items.Add();
- newItem["interview"] = "interview";
- newItem.Update();
- }
- }
14)
How would you loop using SPList through all SharePont List items,
assuming you know the name (in a string value) of the list you want to
iterate through, and already have all the site code written?
C#:
- SPList interviewList = myWeb.Lists["listtoiterate"];
- foreach (SPListItem interview in interviewList)
- {
- // Do Something
- }
15) How do you return SharePoint List items using SharePoint web services?
In
order to retrieve list items from a SharePoint list through Web
Services, you should use the lists.asmx web service by establishing a
web reference in Visual Studio. The lists.asmx exposes the GetListItems
method, which will allow the return of the full content of the list in
an XML node. It will take parameters like the GUID of the name of the
list you are querying against, the GUID of the view you are going to
query, etc.
Side
Question: I got asked how I built queries with the lists.asmx web
service. In order to build queries with this service, one of the
parameters that the GetListItems method exposes is the option to build a
CAML query. There are other ways to do this as well, but that was how I
answered it.
16)
When retrieving List items using SharePoint Web Services, how do you
specify explicit credentials to be passed to access the list items?
In
order to specify explicit credentials with a Web Service, you generally
instantiate the web service, and then using the credentials properties
of the Web Service object you use the System.Net.NetworkCredential class
to specify the username, password, and domain that you wish to pass
when making the web service call and operations.
*** Side Question: I
got asked when you should state the credentials in code. You must state
the credentials you are going to pass to the web service before you
call any of the methods of the web service, otherwise the call will
fail.
17) What is CAML, and why would you use it?
CAML
stands for Collaborative Application Markup Language. CAML is an XML
based language which provides data constructs that build up the
SharePoint fields, view, and is used for table definition during site
provisioning. CAML is responsible for rending data and the resulting
HTML that is output to the user in SharePoint. CAML can be used for a
variety of circumstances, overall is used to query, build and customize
SharePoint based sites. A general use would be building a CAML query in a
SharePoint WebPart in order to retrieve values from a SharePoint list.
18) What is impersonation, and when would you use impersonation?
Impersonation
can basically provide the functionality of executing something in the
context of a different identity, for example assigning an account to
users with anonymous access. You would use impersonation in order to
access resources on behalf of the user with a different account, that
normally, that wouldn’t be able to access or execute something.
19) What is the IDesignTimeHtmlProvider interface, and when can you use it in WebParts?
The
IDesignTimeHtmlProvider interface uses the function GetDesignTimeHtml()
which can contain your relevant render methods. It was helpful to use
in 2003 since it allowed your WebPart to have a preview while a page was
edited in FrontPage with the Webpart on it, because the
GetDesignTimeHtml() method contains the HTML for the designer to render.
20) What are WebPart properties, and what are some of the attributes you see when declaring WebPart properties in code?
WebPart
properties are just like ASP.NET control properties, they are used to
interact with and specify attributes that should be applied to a WebPart
by a user. Some of the attributes you see with ASP.NET 2.0 properties
are WebDescription, WebDisplayName, Category, Personalizable, and
WebBrowsable. Although most of these properties come from the
System.Web.UI.WebControls.WebParts class, ones like Category come out of
System.ComponentModel namespace.
21)
Why are properties important in WebPart development, and how have you
exploited them in past development projects? What must each custom
property have?
Properties
are important because WebParts allow levels of personalization for each
user. WebPart properties make it possible for a user to interact,
adjust, and increase overall experience value with the programmatic
assets that you develop without having the need to use an external
editor or right any code. A very simple example of exploiting a property
would be something like allowing the user to change the text on the
WebPart design interface so that they can display whatever string of
text they desire.
Each custom property that you have must have the appropriate get and set accessor methods.
22) What are ClassResources? How do you reference and deploy resources with an ASP.NET 2.0 WebPart?
ClassResources
are used when inheriting from the
SharePoint.WebPart.WebPartPages.WebPart base class, and are defined in
the SharePoint solution file as things that should be stored in the
wpresources directory on the server. It is a helpful directory to use in
order to deploy custom images. In ASP.NET 2.0, typically things such as
images are referenced by embedding them as resources within an
assembly. The good part about ClassResources is they can help to
eliminate recompiles to change small interface adjustments or
alterations to external JavaScript files.
23) What is a SharePoint Solution File? How does it differ from WebPart .cab files in legacy development? What does it contain?
A
SharePoint solution file is essentially a .cabinet file with all a
developers ustom componets suffixed with a .wsp extension that aids in
deployment. The big difference with SharePoint solution files is is that
a solution:
allows deployment to all WFE’s in a farm
is highly manageable from the interface allowing deployment, retraction, and versioning
Can package all types of assets like site definitions, feature definitions (and associated components), Webparts, etc.
Can provide Code Access Security provisioning to avoid GAC deployments
Just to name a few things…
24) What is a .ddf file and what does it have to do with SharePoint Solution creation?
A
.ddf file is a data directive file and is used when building the
SharePoint solution bundle specifying the source files and their
destination locations. The important thing for someone to understand is
that the .ddf file will be passed as a parameter to the MAKECAB utility
to orchestrate construction of the SharePoint solution fiel.
25) What file does a SharePoint solution package use to orchestrate (describe) its packaged contents?
The solution Manifest.XML file.
26) What deployment mechanism can you use to instigate Code Access Security attributes for your WebParts?
SharePoint
solution files can add in order to handle code access security
deployment issues. This is done in the element in the SharePoint
solution manifest.XML, which makes it easier to get assemblies the
appropriate permissions in order to operate in the bin directory of the
web application.
27) What is a SharePoint Feature? What files are used to define a feature?
A
SharePoint Feature is a functional component that can be activated and
deactivate at various scopes throughout a SharePoint instances, such as
at the farm, site collection, web, etc. Features have their own receiver
architecture, which allow you to trap events such as when a feature is
installing, uninstalling, activated, or deactivated. They are helpful
because they allow ease of upgrades and versioning.
The
two files that are used to define a feature are the feature.xml and
manifest file. The feature XML file defines the actual feature and will
make SharePoint aware of the installed feature. The manifest file
contains details about the feature such as functionality.
Side Question: I
got asked how the introduction of features has changed the concept of
site definitions. SharePoint features are important when understanding
the architecture of site definitions, since the ONET.XML file has been
vastly truncated since it has several feature stapled on it.
28) What types of SharePoint assets can be deployed with a SharePoint feature?
Features can do a lot. For example, you could deploy
Simple site customizations
Custom site navigation
WebParts
pages
list types
list instances
event handlers
workflows
custom actions
just to name a few….
29) What are event receivers?
Event
receivers are classes that inherit from the SpItemEventReciever or
SPListEventReciever base class (both of which derive out of the abstract
base class SPEventRecieverBase), and provide the option of responding
to events as they occur within SharePoint, such as adding an item or
deleting an item.
30) When would you use an event receiver?
Since
event receivers respond to events, you could use a receiver for
something as simple as canceling an action, such as deleting a document
library by using the Cancel property. This would essentially prevent
users from deleting any documents if you wanted to maintain retention of
stored data.
31) What base class do event receivers inherit from?
Event
receivers either inherit from the SPListEventReciever base class or the
SPItemEventReciever base class, both which derive from the abstract
base class SPEventReceiverBase.
32) If I wanted to not allow people to delete documents from a document library, how would I go about it?
You would on the ItemDeleting event set: properties.Cancel= true.
33) What is the difference between an asynchronous and synchronous event receivers?
An
asynchronous event occurs after an action has taken place, and a
synchronous event occurs before an action has take place. For example,
an asynchronous event is ItemAdded, and its sister synchronous event is
ItemAdding.
34) How could you append a string to the title of a site when it is provisioned?
In the OnActivated event:
C#:
- SPWeb site = siteCollection.RootWeb;
- site.Title += "interview";
- site.Update();
35) Can an event receiver be deployed through a SharePoint feature?
Yes.
36) What is a content type?
A
content type is an information blueprint basically that can be re-used
throughout a SharePoint environment for defining things like metadata
and associated behaviors. It is basically an extension of a SharePoint
list, however makes it portable for use throughout an instance
regardless of where the instantiation occurs, ergo has location
independence. Multiple content types can exist in one document library
assuming that the appropriate document library settings are enabled. The
content type will contain things like the metadata, listform pages,
workflows, templates (if a document content type), and associated custom
written functionality.
37) Can a content type have receivers associated with it?
Yes,
a content type can have an event receiver associated with it, either
inheriting from the SPListEventReciever base class for list level
events, or inheriting from the SPItemEventReciever base class. Whenever
the content type is instantiated, it will be subject to the event
receivers that are associated with it.
38)
What two files are typically (this is kept generally) included when
developing a content type, and what is the purpose of each?
There
is generally the main content type file that holds things like the
content type ID, name, group, description, and version. There is also
the ContentType.Fields file which contains the fields to include in the
content type that has the ID, Type, Name, DisplayName, StaticName,
Hidden, Required, and Sealed elements. They are related by the FieldRefs
element in the main content type file.
39) What is an ancestral type and what does it have to do with content types?
An
ancestral type is the base type that the content type is deriving from,
such as Document (0x0101). The ancestral type will define the metadata
fields that are included with the custom content type.
40) Can a list definition be derived from a custom content type?
Yes, a list definition can derive from a content type which can be seen in the schema.XML of the list definition in the element.
41) When creating a list definition, how can you create an instance of the list?
You can create a new instance of a list by creating an instance.XML file.
42) What is a Field Control?
Field
controls are simple ASP.NET 2.0 server controls that provide the basic
field functionality of SharePoint. They provide basic general
functionality such as displaying or editing list data as it appears on
SharePoint list pages.
43) What base class do custom Field Controls inherit from?
This
varies. Generally, custom field controls inherit from the
Microsoft.SharePoint.WebControls.BaseFieldControl namespace, but you can
inherit from the default field controls.
44) What is a SharePoint site definition? What is ghosted (uncustomized) and unghosted (customized)?
SharePoint
site definitions are the core set of functionality from which
SharePoint site are built from, building from the SiteTemplates
directory in the SharePoint 12 hive. Site definitions allow several
sites to inherit from a core set of files on the file system, although
appear to have unique pages, thereby increasing performance and allowing
changes that happen to a site propagate to all sites that inherit from a
site definition. Ghosted means that when SharePoint creates a new site
it will reference the files in the related site definition upon site
provisioning. Unghosted means that the site has been edited with an
external editor, and therefore the customizations are instead stored in
the database, breaking the inheritance of those files from the file
system.
45) How does one deploy new SharePoint site definitions so that they are made aware to the SharePoint system?
The
best way to deploy site definitions in the SharePoint 2007 framework is
to use a SharePoint solution file, so that the new site definition is
automatically populated to all WFE’s in the SharePoint farm.