Deck 14: Windows Forms Gui: a Deeper Look

Question 1

To add a control,the user must write the code that instantiates the control object from a class.

Answer 1

False

Question 2

The form acts as a container for components and controls.

Answer 2

True

Question 3

A(n)_________ is a component with a graphical part.

A)Interface
B)Component
C)Form
D)Control

Answer 3

D

Question 4

The benefit of using a ComboBox is to:

A)combine two controls together to get the benefits of both
B)create a combination of events to occur when normally only one would
C)have a drop-down box
D)All of the above

Question 5

Events in Visual Basic can be:

A)generated within the code of the program
B)started with a click on a button,or other control
C)generated by keyboard input
D)All of the above

Question 6

The active window is the one that has the focus.

Question 7

A component is an instance of a class that inherits from a form.

Question 8

A Panel is used to:

A)group or store components
B)display text
C)create a border around components
D)add style to a form

Question 9

Custom controls can be created but cannot be inserted into the toolbox.

Question 10

Many of the components used for Windows apps in Visual Basic are defined in namespace:

A)System
B)System.Windows.Forms
C)System.Windows.UI
D)System.Web.UI

Question 11

Events occur when the user clicks the mouse,types on the keyboard or interacts with controls.

Question 12

Users can input and display dates through:

A)the MonthCalendar control
B)the DateTimePicker control
C)the CalendarTime control
D)a and b

Question 13

A GUI allows the user to interact with a program visually.

Question 14

An example of a component would be:

A)a button
B)a timer
C)a form
D)All of the above

Question 15

Labels allow input to be typed into them.

Question 16

ListBoxes and ComboBoxes are identical other than the fact that ComboBoxes have a drop-down list.

Question 17

All of the Visual Basic controls and components can be found in the tool box.

Question 18

Delegates act as:

A)ways of sorting events
B)a go-between for objects raising events and the methods that handle the events
C)masks for methods that handle events
D)a way to call many methods at once

Question 19

A ComboBox can display info and also have user-input info.

Question 20

LinkLabels are used to:

A)organize a group of labels
B)bring the user to a desired location
C)allow multiple labels to be modified during runtime all at once
D)All of the above

Question 21

Docking and anchoring accomplish the same task.

Question 22

You can use the TabIndex property to determine the order in which tabbing will occur.

Question 23

_____________ causes controls to remain at a fixed distance from the sides of the container even when the control is resized.

A)Anchoring
B)Docking
C)Focusing
D)None of the above

Question 24

Once an event is raised,every method referenced by the delegate is called.

Question 25

The correct syntax for an event handler is eventName_controlName.

Question 26

The Form class defines the methods that handle each event within the Form class.

Question 27

Which of the following does not describe an event where the user interacts with the GUI?

A)booting up a machine
B)scrolling through a document
C)closing a window
D)clicking on a file

Question 28

By looking up a control's class and clicking the events section,you can determine all the events and the arguments that a control has.

Question 29

_____________ can set the dimensions of a control to the dimensions of the parent container at all times.

A)Anchoring
B)Docking
C)Focusing
D)None of the above

Question 30

The Enabled property does not allow the control to perform actions when it's set to false.

Question 31

The Padding property specifies the distance between the docked control and the Form edges.

Question 32

Docking and anchoring are easy ways to:

A)allow a form to change sizes without altering the layout too much.
B)prevent users from changing the layout of the window.
C)prevent a user from resizing the form.
D)All of the above

Question 33

The _____ key can be pressed to transfer the focus between several controls quickly.

A)Tab
B)Shift
C)Ctrl
D)Alt

Question 34

Most of the code to create a GUI is written by the programmer.

Question 35

Many controls already have predefined delegates corresponding to every event they can generate.

Question 36

Property Anchor allows you to prevent form alterations by the user.

Question 37

How should the event-handler method for the control OutputLabel and the event Click be named?

A)OutputLabel_Click
B)Click
C)OutputLabel.Click
D)None of the above.

Question 38

How can event handlers be generated?

A)by double-clicking on components
B)explicitly writing the code for the event
C)using the Properties window
D)All of the above

Question 39

Each event is allowed only one event handler method.

Question 40

An active control is one that:

A)can move about the screen.
B)is most commonly clicked by the user
C)has the focus
D)changes,whether it is color or another property,on an event.

Question 41

When adding a ToolTip component from the Toolbox,it appears on an arbitrary location on the Form in Design view.

Question 42

Panels have the ability to have scrollbars should their contents get too large.

Question 43

Visual Studio provides snap lines to help align controls.

Question 44

What does the InitialDelay property of the ToolTip determine?

A)The amount of time that the tool tip appears while the mouse is over a control.
B)The amount of time that a mouse must hover over a control before a tool tip appears.
C)The amount of time between which two different tool tips appear.
D)The amount of time in which the tool tip is hidden for.

Question 45

When parent containers are resized,all anchored controls within the containers maintain their relative position to their anchored sides.

Question 46

Because of the nature of a GUI,a form cannot be set to a fixed size.

Question 47

GroupBoxes have a text display and can have scrollbars inserted into them.

Question 48

The Button property is used to determine which mouse button is clicked: left,middle,right or none.

Question 49

GroupBoxes and Panels are used to:

A)bundle controls into one container
B)allow more than one RadioButton to be true at the same time if the RadioButtons are on different GroupBoxes or Panels
C)organize the form in a more orderly fashion
D)All of the above

Question 50

While a ToolTip is being displayed,it's appearance remains the same.

Question 51

Which of the following events is triggered when the mouse is moved downward?

A)MouseHover
B)MouseDown
C)MouseMove
D)All of the above.

Question 52

Panels or GroupBoxes may not be embedded within one another.

Question 53

Mouse interaction with the GUI is limited to click,press,and move.

Question 54

To insert a control into a Panel or GroupBox in Design mode you must:

A)manually create the control inside the Panel or GroupBox
B)create a control and then drag it into the Panel or GroupBox
C)create a control and then set it as inside the Panel or GroupBox
D)group several controls and set their MainControl property to the Panel or GroupBox

Question 55

You can use control properties to disable a control or to hide the control from the user.

Question 56

The AutoScroll property will cause a Panel to scroll to the bottom if the controls displayed are too large.

Question 57

What is a tool tip useful for?

A)the tip of the mouse blinks while hovering over an item in a GUI
B)the tip of the mouse is highlighted while hovering over an item in a GUI
C)helpful text appears while hovering the mouse over an item in a GUI
D)All of the above

Question 58

MouseUp and MouseDown events are used when the mouse is moved up or down.

Question 59

When using mouse coordinates, (0,0)is located in the:

A)bottom left
B)bottom right
C)top left
D)top right

Question 60

When obtaining the coordinates of the mouse they

A)are always taken from the main form of the program
B)are relative to the control that caused the event
C)are taken from the center of the form
D)none of the above

Question 61

To set an underline shortcut in a Menu the programmer uses the tilde key (~).

Question 62

What is the event raised when a new date is selected with the MonthCalendar control?

A)NewDate
B)ModifiedDate
C)ChangedDate
D)DateChanged

Question 63

The Shortcut property is used to set which key combination can be used instead of clicking on a menu item.

Question 64

The Clicks property of class MouseEventArgs is used to determine the number of times a mouse button was clicked.

Question 65

KeyPress events do not handle modifier keys.

Question 66

Visual Basic also has the capacity for submenus.

Question 67

In order to find out which key the user is pressing,one should use the:

A)KeyChar property
B)Key property
C)KeyPress property
D)GetKey property

Question 68

Creating a window menu is mostly done through programming in the form load event.

Question 69

A separator bar can be inserted in a menu with which of the following characters?

A)-
B)&
C)_
D)/

Question 70

Whenever the mouse moves,the system raises a MouseMove event at a rate predetermined by the operating system.

Question 71

The _________ event can be used to determine if non-ASCII keys have been pressed.

A)KeyPress
B)KeyDown
C)KeyChar
D)None of the above.

Question 72

In order to use modifier keys,you should:

A)use the ModifierKey event.
B)use the KeyData property.
C)use the ModifierKeyHandler.
D)modifier keys are handled by the operating system.

Question 73

Pressing Enter to press a GUI button is not a key event;it's set in the control's properties.

Question 74

KeyPress events and one KeyDown event are generated when a key on the keyboard is pressed down.

Question 75

The KeyData property returns a key enumeration with no information about modifier keys.

Question 76

Menus are ways of grouping similar commands and preventing GUI clutter.

Question 77

ASCII does not support function keys or modifier keys.

Question 78

The KeyPress event is triggered when:

A)Any key is pressed.
B)A modifier key is pressed.
C)A key representing an ASCII character is pressed.
D)None of the above.

Question 79

Which of the follow statements are true about menus created through Visual Basic?

A)They provide groups of related commands for Windows apps.
B)They organize commands without cluttering the GUI
C)They have the capacity to create shortcuts for the menu commands
D)All of the above

Question 80

What does the MonthCalendar allow for?

A)time selection
B)date selection
C)a and b
D)None of the above