Tag: .net

Questions Related to .net

How do we implement private interfaces
.net vb

  1. Using Inherits Keyword

  2. Private interfaces can not be implemented

  3. Using Implements Keyword

Show answer
Correct Option: B

Where do you find COMException class
.net vb

  1. System.Runtime.Interopservices

  2. System.XML

  3. System. Data

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Correct Option: A

Which method of the XMLdocument class takes xml as string while loading

.net vb

  1. Loadxml ( )

  2. Load( )

  3. Save ( )

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Correct Option: A

Which is the base class for TypedDataset
.net vb

  1. DataReader

  2. Dataset

  3. DataAdapter

Show answer
Correct Option: B
Explanation:

To answer this question, the user should be familiar with the concept of typed datasets and their relationship to other classes in the .NET framework.

The correct answer is:

B. Dataset

Explanation:

In the .NET framework, the base class for typed datasets is the Dataset class. A typed dataset is a dataset that is derived from the Dataset class and includes additional features such as strongly-typed data tables and data columns.

A. DataReader is not the base class for TypedDataset. The DataReader class is used for reading data from a database and does not have a direct relationship to typed datasets.

C. DataAdapter is also not the base class for TypedDataset. The DataAdapter class is used for retrieving and updating data from a database, but it is not the base class for typed datasets.

Therefore, the correct answer is B. Dataset.

Which is the best to retrieve Read-Only, Forward-only stream of data from database
.net vb

  1. Data Set

  2. Typed Data Set

  3. DataReader

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Correct Option: C

The DataAdapter uses which of the following object to retrieve the data from database
.net vb

  1. Connection

  2. Command

  3. DataReader

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Correct Option: B

Which of the method is used to display the form as modal

.net vb

  1. Showdialog( )

  2. Activate ( )

  3. Loaddialog()

  4. Show( )

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Correct Option: A

The tool provided with .Net framework to register assemblies for use by COM is
.net vb

  1. Regsvr32

  2. Regasm

  3. ILDASM

  4. Regedit

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Correct Option: B

How do you add Web Methods in VB.Net

.net vb

  1. Add keyword to Method signature

  2. Add [WebMethod] on top of the Method Signature

  3. Add {WebMethod} on top of the Method Signature

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Correct Option: A

How do you refer the current class in VB.Net
.net vb

  1. Me

  2. This

  3. Super

Show answer
Correct Option: A
Explanation:

To refer to the current class in VB.Net, you would use the "Me" keyword.

A. Me: This option is correct. In VB.Net, "Me" is a keyword that represents the current instance of the class. It can be used to access the members and properties of the current class.

B. This: This option is incorrect. In VB.Net, "This" is not used to refer to the current class. Instead, "This" is used in other programming languages like C# to refer to the current instance of a class.

C. Super: This option is incorrect. In VB.Net, "Super" is not used to refer to the current class. Instead, "Super" is used in other programming languages like Java to refer to the superclass or base class.

The Answer is: A. Me