Deck 12: Using Controls

Question 1

A LinkLabel is similar to a Label in that it is a parent of Label .

Answer 1

False

Question 2

C# allows you to create custom colors.

Answer 2

True

Question 3

A ____ is similar to a ListBox but with check boxes appearing to the left of each item.

A) CheckBox
B) ButtonBox
C) ComboBox
D) CheckedListBox

Answer 3

D

Question 4

A ____ is similar to a ListBox , except that it displays an additional editing field to allow the user to select from the list or to enter new text.

A) ComboBox
B) CheckBox
C) CheckedListBox
D) ComboListBox

Question 5

The ____ class provides the definitions for GUI objects.

A) Control
B) Object
C) Widget
D) Gadget

Question 6

____ objects are GUI widgets the user can click to select an option; any number of these can be selected at the same time.

A) ListBox
B) RadioButton
C) CheckBox
D) CheckedListBox

Question 7

The default text color for a LinkLabel is purple.

Question 8

You use the ____ class to change the appearance of printed text on your Form s.

A) Text
B) ForeText
C) Font
D) FontText

Question 9

The ____ Control allows you to retrieve date information.

A) Calendar
B) MonthCalendar
C) DateCalendar
D) CalendarPicker

Question 10

When designing a Form , you will usually use the ____ design features in the IDE instead of typing code statements.

A) color
B) drag-and-drop
C) button
D) font

Question 11

The ListBox provides a Boolean ____ property, which you can set to display items in columns instead of in a straight vertical list.

A) SingleColumn
B) MoreColumn
C) OneColumn
D) MultiColumn

Question 12

CheckBox and RadioButton objects have a ____ method that is called when the object is clicked by the user.

A) Changed()
B) ClickedChanged()
C) CheckedChanged()
D) ValueChanged()

Question 13

A ____ provides the capability to link the user to other sources, such as Web pages or files.

A) Label
B) FileLabel
C) ResourceLabel
D) LinkLabel

Question 14

A ____ is an object you can instantiate on a remote computer so that you can manipulate a reference to the object rather than a local copy of the object.

A) ByRefObject
B) RemoteRefObject
C) RemoteObject
D) MarshalByRefObject

Question 15

____ objects are GUI widgets the user can click to select an option; only one of a group can be selected at a time.

A) CheckButton
B) RadioButton
C) ListBox
D) RadioCheckedButton

Question 16

The ____ Control displays a month calendar when the down arrow is selected.

A) MonthCalendar
B) CalendarPicker
C) DateTimePicker
D) DatePicker

Question 17

If you precede a letter in the Text property value of a ButtonBase object with a(n) ____, that letter acts as an access key.

A) &
B) %
C) $
D) #

Question 18

Each Control has more than 80 public properties.

Question 19

When you size a ListBox so that all the items cannot be displayed at the same time, a scroll bar is provided automatically on the side.

Question 20

ListBox , ComboBox , and CheckedListBox objects all allow users to select choices from a list. These three classes descend from ____.

A) ListBase
B) ListControl
C) BaseList
D) List

Question 21

Setting the ____ property causes a Control to remain at a fixed distance from the side of a container when the user resizes it.

A) Dock
B) Padding
C) Anchor
D) Filling

Question 22

A(n) ____________________ is a Control in which you can display graphics from a bitmap, icon, JPEG, GIF, or other image file type.

Question 23

In a MenuStrip , if you create each main menu item with a(n) ____ in front of a unique letter, then the user can press Alt and the given letter to activate the menu choice as an alternative to clicking it with the mouse.

A) %
B) $
C) &
D) >

Question 24

What are some of the methods that you can use with the SelectionStart and SelectionEnd properties of MonthCalendar to calculate new dates? For example, if you wanted to calculate the date of an event that will occur 10 days from the SelectionStart date, what MonthCalendar method could you use?

Question 25

SelectionStart and SelectionEnd are properties of the MonthCalendar class. What methods can be applied to these properties to control the display of a date? What other factors influence the format in which dates are displayed?

Question 26

When designing a MenuStrip control, the programmer should follow conventional menu order; for example, a Help option is usually located ____ of the main menu.

A) on the far-left side
B) in the File submenu
C) in the Preferences submenu
D) on the far-right side

Question 27

What are some of the commonly used LinkLabel properties, and what is the default event generated when the link is clicked by a user?

Question 28

The ____________________ property of the PictureBox control sets the image that appears in the control.

Question 29

When working with a Form in the IDE, how do you place new Control s on the Form , and how can you adjust them precisely to align with existing Control s?

Question 30

When using programs or visiting Internet sites, you encounter and use many other interactive ____________________-elements of graphical interfaces that allow you to interact with programs-such as scroll bars, check boxes, and radio buttons.

Question 31

Explain the selection options that can be controlled by setting the SelectionMode property of a ListBox .

Question 32

How would you declare a named instance of a Font class, and what arguments can be used within the constructor? Show the declaration for a font named fancyFont that is size 24, bold, underlined, and Helvetica.

Question 33

What are some of the commonly used PictureBox properties and the default event for a PictureBox ?

Question 34

Setting the ____ property attaches a Control to the side of a container so that the Control stretches when the container's size is adjusted.

A) Anchor
B) Dock
C) Padding
D) Filling

Question 35

The ____________________ class contains a wide variety of predefined Color s that you can use with your Control s.

Question 36

When you drag multiple Control s onto a Form , blue ____ appear and help you align new Control s with others already in place.

A) dots
B) dotted lines
C) grip angles
D) snap lines

Question 37

What are some of the commonly used CheckBox and RadioButton properties, and the default event for which a method shell is generated for these classes in the IDE? If you wanted a user to select which pizza toppings he or she wanted from a group of possible toppings, which Control would you use and why?

Question 38

When filling in the items in a MenuStrip control, you can double-click an entry to generate a ____ method that will execute if the user clicks on the entry.

A) Change()
B) SetSelected()
C) Click()
D) SelectedIndexChanged()

Question 39

When you create a Form in the Visual Studio IDE, the IDE automatically generates code to support the Form and any Control s that you place on the Form . What do you know about the Form under development given the following snippet of code generated by the IDE?
private void InitializeComponent()
{
this .label1 = new System.Windows.Forms.Label();
this .okButton = new System Windows.Forms.Button();
...
}

Question 40

Control objects such as Form s and Button s, like all other objects in C#, ultimately derive from the ____________________ class.

Question 41

What are the similarities and differences between using a GroupBox and using a Panel to group related Control s on a Form ?