Tag: .net

Questions Related to .net

Which task is accomplished in the Code editor?

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  1. Adding forms to the project

  2. Adding controls to the form

  3. Adding event procedures to the form

  4. Both a and b.

  5. All of the above.

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to understand the purpose of a code editor and its role in programming.

A code editor is a software application or a part of an integrated development environment (IDE) that allows programmers to write and edit source code. It provides a user-friendly interface for writing, modifying, and organizing code.

Now, let's go through each option and explain what it represents:

A. Adding forms to the project: This option is not accomplished in the code editor. Adding forms to a project typically involves using a visual interface or design view to create and customize forms.

B. Adding controls to the form: This option is accomplished in the code editor. Once a form is created, the programmer can use the code editor to add controls (such as buttons, textboxes, etc.) to the form and specify their properties and behaviors through code.

C. Adding event procedures to the form: This option is accomplished in the code editor. Event procedures define the code that should be executed when a specific event occurs, such as a button click or a form load. The programmer can write and edit these event procedures in the code editor.

D. Both a and b: This option is incorrect. Adding forms to a project is not accomplished in the code editor.

E. All of the above: This option is incorrect. Adding forms to a project is not accomplished in the code editor.

Based on the explanations above, the correct answer is:

C. Adding event procedures to the form.

Which is not a feature of a GUI that makes learning a program easy for users?

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  1. Online help

  2. WYSIWYG formatting

  3. Dialog boxes

  4. Detailed key strokes and commands

  5. Icons

Show answer
Correct Option: D

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

A. Online help - Online help is a feature of a GUI that provides users with assistance and guidance on how to use the program. It enhances the user's learning experience by providing access to resources such as tutorials, FAQs, and user manuals. This feature makes learning a program easier for users.

B. WYSIWYG formatting - WYSIWYG (What You See Is What You Get) formatting allows users to see the final appearance of their document or design as they create it. This feature makes it easier for users to understand how the program works and enables them to make real-time adjustments. It enhances the user's learning experience.

C. Dialog boxes - Dialog boxes are windows that appear on the screen and prompt the user to enter information, make selections, or perform specific actions. They provide a clear and organized way for users to interact with a program. Dialog boxes make learning a program easier by presenting options and guiding users through different tasks.

D. Detailed key strokes and commands - This option is correct because detailed key strokes and commands are not a feature of a GUI that makes learning a program easy for users. GUIs are designed to provide a visual and intuitive interface, reducing the reliance on complex keyboard shortcuts and commands. Instead, GUIs rely on graphical elements such as icons, menus, and buttons to perform tasks.

E. Icons - Icons are graphical representations that represent specific functions or actions within a program. They provide a visual cue for users to understand the purpose and functionality of different features. Icons make learning a program easier by providing a visual reference and enabling users to quickly identify and access different functions.

The correct answer is D. Detailed key strokes and commands. This option is not a feature of a GUI that makes learning a program easy for users, as GUIs aim to minimize the need for complex keyboard shortcuts and commands by providing a visual and intuitive interface.

An object is composed of:

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  1. properties.

  2. methods.

  3. events.

  4. Both a and b.

  5. All of the above.

Show answer
Correct Option: E

Which statement about objects is true?
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  1. One object is used to create one class.

  2. One class is used to create one object.

  3. One object can create many classes.

  4. One class can create many objects.

  5. There is no relationship between objects and classes.

Show answer
Correct Option: D

Which is not true about forms and controls in Visual Basic?
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  1. They are pre-built.

  2. They are graphical objects.

  3. New versions of the classes must be created with each project.

  4. Buttons can be created with the drag and drop method.

  5. All of the above are true.

Show answer
Correct Option: C
Explanation:

To solve this question, you need to have an understanding of forms and controls in Visual Basic.

Now let's go through each option and explain whether it is true or not:

A. They are pre-built: This option is true. Forms and controls in Visual Basic are pre-built objects that can be used to create a user interface for an application. These objects are already available in the Visual Basic environment and can be easily added to a project.

B. They are graphical objects: This option is true. Forms and controls in Visual Basic are graphical objects that can be visually designed and manipulated. They can be used to display information, receive user input, and perform various actions.

C. New versions of the classes must be created with each project: This option is not true. In Visual Basic, forms and controls are defined as classes, but you do not need to create new versions of these classes with each project. Instead, you can reuse the existing classes and customize them as needed.

D. Buttons can be created with the drag and drop method: This option is true. In Visual Basic, buttons (which are a type of control) can be easily created by dragging and dropping a button control from the toolbox onto a form. This allows for a simple and intuitive way of adding buttons to a user interface.

Based on the explanations above, the correct answer is:

C. New versions of the classes must be created with each project.

Which is an example of Visual Basic Objects?
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  1. Control objects

  2. ASP.NET

  3. ADO.NET

  4. Both a and b.

  5. All of the above.

Show answer
Correct Option: E
Explanation:

Visual Basic objects are instances of classes that are defined in the Visual Basic programming language. They can be used to represent anything from a simple control on a form to a complex data access object.

Control objects are a type of Visual Basic object that represents a control on a form. Controls are the graphical elements that users interact with, such as buttons, text boxes, and labels.

ASP.NET is a web development framework that uses Visual Basic objects to create dynamic web pages.

ADO.NET is a data access framework that uses Visual Basic objects to access data from databases.

Therefore, the answer to the question is E. All of the above. Control objects, ASP.NET, and ADO.NET are all examples of Visual Basic objects.

Here is a table that summarizes the different types of Visual Basic objects:

Type of object Description
Control object Represents a control on a form
ASP.NET object Represents a web page or web service
ADO.NET object Represents a data source
Other objects There are many other types of Visual Basic objects, such as data structures, mathematical objects, and string objects.

The .Net class library:

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  1. contains over 25,000 classes.

  2. uses namespaces to manage all of the classes.

  3. has the System.Form namespace for classes used in Windows-based application.

  4. Both a and b.

  5. All of the above.

Show answer
Correct Option: D

Which is not a property of the Common control class?
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  1. Show

  2. BackColor

  3. Font

  4. ForeColor

  5. Name

Show answer
Correct Option: A

Which property determines whether a control is displayed to the user?

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  1. Hide

  2. Show

  3. Visible

  4. Enabled

  5. Cursor

Show answer
Correct Option: C
Explanation:

To determine whether a control is displayed to the user, the user needs to know the property that controls visibility of the control.

Now, let's go through each option and explain why it is right or wrong:

A. Hide: This property is used to hide a control that is visible on the screen. This option does not determine whether a control is displayed to the user.

B. Show: This property is used to make a hidden control visible on the screen. It does not determine whether a control is displayed to the user.

C. Visible: This property is used to determine whether a control is displayed on the screen. If the Visible property is set to true, then the control is displayed. If it is set to false, then the control is hidden. This option is the correct answer.

D. Enabled: The Enabled property determines whether a control can be interacted with by the user. It does not determine whether a control is displayed to the user.

E. Cursor: The Cursor property determines the appearance of the mouse cursor when it is over the control. It does not determine whether a control is displayed to the user.

The Answer is: C

The Button control can be activated:
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  1. programmatically through the click event.

  2. by clicking the button with the mouse.

  3. with the form’s DefaultButton property.

  4. Both a and b.

  5. All of the above.

Show answer
Correct Option: D
Explanation:

To answer this question, the user needs to have knowledge about the ways to activate a Button control in a Windows Forms application.

Option A is correct. A Button control can be activated programmatically by calling its Click event.

Option B is correct. A Button control can be activated by clicking on it with the mouse.

Option C is correct. A Button control can be activated by setting the form's DefaultButton property to the Button control that should be activated when the user presses the Enter key.

Therefore, option D is correct since both option A and B are correct.

Option E is incorrect since it is not necessary to use all three methods to activate a Button control.

Therefore, the answer is: D.