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What is an Application Pool?
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Posted Date :
March 29, 2010
Application pool is designed to provide isolation between the process running in the Internet Information Server(IIS).
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What is an Application Pool?
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.
What is Application Domain?
The primary purpose of the AppDomain is to isolate an application from other applications. Win32 processes provide isolation by having distinct memory address spaces. This is effective, but it is expensive and doesn't scale well. The .NET runtime enforces AppDomain isolation by keeping control over the use of memory - all memory in the AppDomain is managed by the .NET runtime, so the runtime can ensure that AppDomains do not access each other's memory.
Objects in different application domains communicate either by transporting copies of objects across application domain boundaries, or by using a proxy to exchange messages.
MarshalByRefObject is the base class for objects that communicate across application domain boundaries by exchanging messages using a proxy. Objects that do not inherit from MarshalByRefObject are implicitly marshal by value. When a remote application references a marshal by value object, a copy of the object is passed across application domain boundaries.
I have written an assembly that I want to use in more than one application. Where do I deploy it?
Assemblies that are to be used by multiple applications (for example, shared assemblies) are deployed to the global assembly cache. In the prerelease and Beta builds, use the /i option to the Alink SDK tool to install an assembly into the cache:
A future version of the Windows Installer will be able to install assemblies into the global assembly cache.
What is an application domain?
An application domain (often AppDomain) is a virtual process that serves to isolate an application. All objects created within the same application scope (in other words, anywhere along the sequence of object activations beginning with the application entry point) are created within the same application domain. Multiple application domains can exist in a single operating system process, making them a lightweight means of application isolation.
An OS process provides isolation by having a distinct memory address space. While this is effective, it is also expensive, and does not scale to the numbers required for large web servers. The Common Language Runtime, on the other hand, enforces application isolation by managing the memory use of code running within the application domain. This ensures that it does not access memory outside the boundaries of the domain. It is important to note that only type-safe code can be managed in this way (the runtime cannot guarantee isolation when unsafe code is loaded in an application domain).
Describe the techniques for optimising your application?
. Avoid round-trips to server. Perform validation on client.
. Save viewstate only when necessary.
. Employ caching.
. Leave buffering on unless there is a dire need to disable it.
. Use connection pooling.
. Use stored procedures instead of in-line SQL or dynamic SQL.
Differences between application and session.
The session object maintains state on a per client basis whereas the application object is on a per application basis and is consistent across all client requests.
What is web application virtual directory?
A virtual directory appears to client browsers as though it were
contained in a Web server's root directory, even though it can physically Reside somewhere else.
what is different between session and application
session is a object that store information between http request for a paticular user.
->But application object are global for each user
What is the best place to start Silverlight application?
There is no hard and fast rule to start Silverlight application. Every developer can start as per his/her experience.
like as per my case I always prefer Visual Studio. SO, in my view Visual Studio is the best place to start with Silverlight2 applications.Microsoft provides
templates for creating Silverlight applications and libraries in C#
and Visual Basic.
Can you elaborate how to start a silverlight application with Visual Studio?
You can find a fully described article from http://www.silverlightclub.com/resources/1858-silverlight-lets-start-building-applications.aspx.aspx
In the following step(s) I am giving the ideas all about:
1.Create a project:Here you just start your visual studio, Select your programming language [C#/VB], Choose Silverligh Template give the name and save it
2. Adding SIlverlight COntrols:One thing is happened here, controls cannot dragged onto the designer, you can draw/drag the controls on XAML page.
(a) Naming to control:In this step just give the name to your silverligt control like for Button you can give name as : btnmySilverligtButton
(b)Adding event handlers to Silverlight controls:Here you can give the event handlers like for click etc.
(c)Testing Silverlight applications in Visual Studio:Now just press F5 and test your application
What happened when I press F5 within Visual Studio to run Silverlight application?
When you run the Silverlight application within Visual Studio, a new folder created in the web-site project for silverlight solution and it happened only first time. The folder name is ClientBin and having package with XAP extension which contains compiled project.
Can I add more than one .xaml pages in silverlight application?
Yes, you can have multiple .xaml files in a single project.
In the App.xaml, in the method Application_Startup you can choose, which page you want to
Can a .NET web application consume Java web service?
Yes Offcourse.Actually Webservices are independent to language. it depends on WSDL and SOAP. so any one can develope the Webservices anddisclose the wsdl and users can consume the webservices.wsdl and soap both are xml based.. and all languages having xml parsing
capability and access to http protocol will be able to work with Webservices.
Which control cannot be placed in MDI in windows application?
The controls that do not have events.
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