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Passport authentication
Passport authentication Passport authentication lets you to use Microsoft’s passport service to authenticate users of your application. If your users have signed up with passport, and you configure the authentication mode of the application to the passport authentication, all authentication duties a...
2007-10-24, 5331👍, 0💬

What is Reference counting in COM ?
.NET INTERVIEW QUESTIONS - What is Reference counting in COM ? Reference counting is a memory management technique used to count how many times an object has a pointer referring to it. The first time it is created, the reference count is set to one. When the last reference to the object is nulled, t...
2010-01-19, 5329👍, 0💬

Why is the culture set to the current thread
Why is the culture set to the current thread? First let me explain this question. If you look at the code snippet of how to set the culture info. Thread.CurrentThread.CurrentCu lture= new CultureInfo(strCulture); It uses the current thread to set it. What does that mean? Let’s drill down a bit of ho...
2007-11-02, 5327👍, 0💬

What is the use of CommandBuilder
What is the use of CommandBuilder ? CommandBuilder builds “Parameter” objects automatically. Below is a simple code which uses commandbuilder to load its parameter objects. Dim pobjCommandBuilder As New OleDbCommandBuilder(pobjDataAd apter)pobjCommandBuilder.DeriveParam eters(pobjCommand)Be careful ...
2007-10-24, 5322👍, 0💬

What is scavenging ?
.NET INTERVIEW QUESTIONS - What is scavenging ? When server running your ASP.NET application runs low on memory resources, items are removed from cache depending on cache item priority. Cache item priority is set when you add item to cache. By setting the cache item priority controls the items scave...
2009-05-12, 5320👍, 0💬

What are LeaseTime, SponsorshipTime, RenewonCallTime and
What are LeaseTime, SponsorshipTime, RenewonCallTime and LeaseManagerPollTime? This is a very important question from practical implementation point of view. Companies who have specific requirement for Remoting projects will expect this question to be answered. In normal .NET environment objects lif...
2007-10-23, 5320👍, 0💬

What is the difference between System.String and System.StringBuilder classes?
Difference between System.String & System.StringBuilder Classes? System.String is immutable; System.StringBuilder was designed with the purpose of having a mutable string where a variety of operations can be performed. prefer System.StringBuilder when you are doing lot of string manuplation oper...
2009-03-06, 5318👍, 0💬

What is WCF part 2
What is WCF part 2 So he concluded to use MSMQ (Microsoft Message Queuing) service. He analyzed that the main problem was that the travel agent had to wait until his first ticket booking is not completed. So when the travel agent makes a booking it will come and fall in the queue and release the tra...
2007-11-03, 5317👍, 0💬

How do we define collation sequence for database and tables
How do we define collation sequence for database and tables? You can create a database with language specific collation sequence. For instance in the below create statement tblCustomer is created by Latin language collation sequence. Create database tblCustomer collate Latin1_General_BIN You can als...
2007-11-02, 5317👍, 0💬

What is an application domain
What is an application domain? Previously “PROCESS” where used as security boundaries. One process has its own virtual memory and does not over lap the other process virtual memory; due to this one process can not crash the other process. So any problem or error in one process does not affect the ot...
2007-10-23, 5317👍, 0💬

What is Asynchronous One-Way Calls
What is Asynchronous One-Way Calls ? One-way calls are a different from asynchronous calls from execution angle that the .NET Framework does not guarantee their execution. In addition, the methods used in this kind of call cannot have return values or out parameters. One-way calls are defined by usi...
2007-10-23, 5316👍, 0💬

How can we use dataadapter to fill a dataset ?
What are the steps involved to fill a dataset ? Sample code is provided in “WindowsDataSetSample” folder in CD.”LoadData” has all the implementation of connecting and loading to dataset. This dataset is finally bind to a ListBox. Below is the sample code. Private Sub LoadData() Dim strConnectionStr...
2007-10-24, 5315👍, 0💬

How can we make a thread sleep for infinite period ?
.NET INTERVIEW QUESTIONS - How can we make a thread sleep for infinite period ? You can also place a thread into the sleep state for an indeterminate amount of time by calling Thread.Sleep (System.Threading.Timeout.Infi nite).To interrupt this sleep you can call the Thread.Interrupt method.
2009-11-24, 5312👍, 0💬

Can you explain the difference between an ADO.NET Dataset and an ADO Recordset
Can you explain the difference between an ADO.NET Dataset and an ADO Recordset? There two main basic differences between recordset and dataset ? With dataset you an retrieve data from two databases like oracle and sql server and merge them in one dataset , with recordset this is not possible ? All r...
2007-10-24, 5312👍, 0💬

What does address of operator do in background? any example.
What does address of operator do in background? any example. The AddressOf operator creates a delegate object to the BackgroundProcess method. A delegate within VB.NET is a type-safe, object-oriented function pointer. After the thread has been instantiated, you begin the execution of the code by cal...
2009-03-13, 5308👍, 0💬

What is DISCO
What is DISCO ? DISCO is the abbreviated form of Discovery. It is basically used to club or group common services together on a server and provides links to the schema documents of the services it describes may require.
2007-10-23, 5301👍, 0💬

Can we use events with threading
Can we use events with threading ? Yes, you can use events with thread; this is one of the techniques to synchronize one thread with other.
2007-10-22, 5297👍, 0💬

What is CODE Access security (CAS)?
.NET INTERVIEW QUESTIONS - What is CODE Access security (CAS)? CAS is part of .NET security model that determines whether or not a piece of code is allowed to run and what resources it can use while running. Example CAS will allow an application to read but not to write and delete a file or a resour...
2010-04-27, 5295👍, 0💬

Forms authentication
Forms authentication Forms authentication provides you with a way to handle authentication using your own custom logic with in an ASP.NET application. The following applies if you choose forms authentication. ? When a user requests a page for the application, ASP.NET checks for the presence of a spe...
2007-10-24, 5292👍, 0💬

What is WSDL
What is WSDL? Web Service Description Language (WSDL)is a W3C specification which defines XML grammar for describing Web Services.XML grammar describes details such as:- ã Where we can find the Web Service (its URI)? ã What are the methods and properties that service supports? ã Data type suppo...
2007-10-23, 5292👍, 0💬

What are benefits and limitations of using Hidden frames?
.NET INTERVIEW QUESTIONS - What are benefits and limitations of using Hidden frames? Following are the benefits of using hidden frames: * You can cache more than one data field. * The ability to cache and access data items stored in different hidden forms. * The ability to access JScript® variable v...
2009-07-14, 5289👍, 0💬

What are different types of JIT
What are different types of JIT ? Note :- This question can only be asked when the interviewer does not know what he wants. It was asked to me in one of interview and for 15 minutes he was roaming around the same question in order to get answer from me (requirement was for a simple database project)...
2007-10-22, 5288👍, 0💬

What is Asynchronous One-Way Calls ?
.NET INTERVIEW QUESTIONS - One-way calls are a different from asynchronous calls from execution angle that the .NET Framework does not guarantee their execution. In addition, the methods used in this kind of call cannot have return values or out parameters. One-way calls are defined by using [OneWay...
2009-09-15, 5286👍, 0💬

What is the use of @ OutputCache directive in ASP.NET
What is the use of @ OutputCache directive in ASP.NET? It is basically used for caching. See more for Caching chapter.
2007-10-24, 5281👍, 0💬

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