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What are the different ways of creating object using Reflection?

Posted By :Jean Paul     Posted Date :May 05, 2011    Points :40   Category :.NET Framework 

You can also find related Interview Question to What are the different ways of creating object using Reflection?  below: 

Explain the ways to serialize the java object.

Object serialization could be used in different ways:

- Simple persistence of the object
- Reading from and writing to files
- RMI technology for communicating across hosts.

The encryption and decryption is left to the network transport. SSL or the like can be used when a secured channel is needed. (More...)

What is serialization in .NET? What are the ways to control serialization?

Serialization is the process of converting an object into a stream of bytes. Deserialization is the opposite process of creating an object from a stream of bytes. Serialization/Deserialization is mostly used to transport objects (e.g. during remoting), or to persist objects (e.g. to a file or database).Serialization can be defined as the process of storing the state of an object to a storage medium. During this process, the public and private fields of the object and the name of the class, including the assembly containing the class, are converted to a stream of bytes, which is then written to a data stream. When the object is subsequently deserialized, an exact clone of the original object is created.
Binary serialization preserves type fidelity, which is useful for preserving the state of an object between different invocations of an application. For example, you can share an object between different applications by serializing it to the clipboard. You can serialize an object to a stream, disk, memory, over the network, and so forth. Remoting uses serialization to pass objects "by value" from one computer or application domain to another.
XML serialization serializes only public properties and fields and does not preserve type fidelity. This is useful when you want to provide or consume data without restricting the application that uses the data. Because XML is an open standard, it is an attractive choice for sharing data across the Web. SOAP is an open standard, which makes it an attractive choice.

There are two separate mechanisms provided by the .NET class library -
XmlSerializer and SoapFormatter/BinaryFormatter. Microsoft uses XmlSerializer for Web Services, and uses

SoapFormatter/BinaryFormatter for remoting. Both are available for use in your own code. (More...)

Can we call a base class method without creating instance?

Its possible If its a static method.

Its possible by inheriting from that class also.

Its possible from derived classes using base keyword. (More...)

What is a Null object?

It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an object. (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...)

Describe ways of cleaning up objects.

The run time will maintain a service called as garbage collector.
this service will take care of deallocating memory corresponding to
objects.it works as a thread with least priority.when application
demenads for memory the runtime will take care of setting the high
priority for the garbage collector,so that it will be called for execution
and memory will be released.the programmer can make a call
to garbage colector by using GC class in system name space. (More...)

How can I look up a parent class method or property of any System-level object?

Use the Class View window, accessed from the standard toolbar by clicking View | Class View. (More...)

What are the ways available in SQL Server to execute SQL statements?


SQL Server uses different ways to execute SQL statements which are listed below.

1)Single SQL statement processing
2)Batch processing
3)Stored procedure and trigger execution
4)Execution plan caching and reuse
5)Parallel query processing


What is object Reference Tracing?

Object Reference Tracing is record sequential stack traces each time whenever object reference counter is incremented or decremented. These traces help to detect object reference errors, double-dereferencing, failure to reference. (More...)

You are working with a DataSet and want to be able to display data, sorted different ways. How do you do so?

Select the correct answer.

1. Use the Sort method on the DataTable object.
2. Use the DataSet object's Sort method.
3. Use a DataView object for each sort.
4. Create a DataTable for each sort, using the DataTable object's Copy method, and then Sort the result

Correct Answer is :
3. Use a DataView object for each sort. (More...)

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