VB Chapter 7

False

The names of the arguments in a Call statement need to be identical to the names of the corresponding parameters. T or F?

True

The number of arguments listed in the Call statement's argumentList should agree with the number of parameters listed in the parameterList in the procedure header. T or F?

dblNewPrice = GetNewPrice(dblCurrentPrice)

The syntax ____ assigns a return value to a variable.

lblNewPrice.Text = GetNewPrice(dblCurrentPrice).ToString("C2")

The syntax ____ displays a return value.

Call procedureName([argumentList])

The syntax of the Call statement is ____.

variable

Usually, the statement that invokes a function will assign the function's return value to a(n) ____.

True

Visual Basic allows you to specify that an argument in the Call statement is optional. T or F

Pascal case

When using ____, you capitalize the first letter in the procedure name and the first letter of each subsequent word in the name.

by value

When you pass a variable ____, the computer passes only the contents of the variable to the receiving procedure.

Return dblNumber

Which of the following is a valid Return statement?

Private Function CalcSubtotal(ByVal decPrice As Decimal) As Decimal

Which of the following is a valid header for a procedure that is passed the number 9.75?

decTotal = decSubtotal + GetSalesTax(decSubtotal)

Which of the following statements will call the GetSalesTax function and return a value to be used in the Total calculation?

cboDepartment.Items.Count

Which of the following statements will determine the number of items in the list portion of the Department combo box?

Call DisplayMessage(strItemName, decItemPrice)

Which of the following statements would invoke the DisplayMessage Sub procedure?

intEnd = GetEndInventory(intBegInv, intItemsSold, intReturned)

Which of the following statements would invoke the GetEndInventory function and assign the function's return value to the intEnd variable?

False

You can determine whether a variable is being passed by value or by reference by looking at the Call statement. T or F?

Private Function GetEndInventory(ByVal intBegin As Integer, ByVal intSales As Integer, ByVal intReturns As Integer) As Integer

You need to create a function to calculate the ending inventory using three passed Integer variables: intBegin, intSales, and intReturns. Which of the following procedure headers should be used?

by value

You pass a variable ____ when the receiving procedure needs to know the variable's contents, but the receiving procedure does not need to change the contents.

Three

____ styles of combo boxes are available in Visual Basic.

Combo box

a control that allows the user to select from a list of choices and also has a text field that may or may not be editable

Independent Sub procedure

a procedure that is independent of any object and event; the procedure is processed only when called (invoked) from code

Function procedure

a procedure that returns a value after performing its assigned task

Cancel property

a property of the e parameter in the form's FormClosing event procedure; when set to True, it prevents the form from closing

Functions

another name for Function procedures

DropDownStyle property

determines the style of a combo box

FormClosing event

occurs when a form is about to be closed, which can happen as a result of the computer processing the Me.Close() statement or the user clicking the Close button on the form's title bar|

False

A Function procedure does not return a value after performing its assigned task. T or F?

combo box

A ____ is similar to a list box in that it allows the user to select from a list of choices.

FormClosing event

A form's ____ procedure is responsible for verifying that the user wants to close the application, and then taking the appropriate action based on the user's response.

independent Sub procedure

A(n) ____ is processed only when it is called (invoked) from code.

Return statement

the Visual Basic statement that returns a function's value to the statement that invoked the function

Call statement

the Visual Basic statement used to invoke (call) an independent Sub procedure

Passing by value

the process of passing a copy of a variable's value to a procedure

Passing by reference

the process of passing a variable's address to a procedure so that the value in the variable can be changed

Math.Round function

used to round a number to a specific number of decimal places

False

An event procedure is a Function procedure that is associated with a specific object and event. T or F?

Parameters

An independent Sub procedure can contain one or more ____ in its procedure header that have procedure scope and store an item of data.

True

An independent Sub procedure is a procedure that is independent of any object and event. T or F?

Add

As you do with list boxes, you use the Items collection's ____ method to add an item to a combo box.

One less than

For the access key to work correctly in a combo box, you must set the label's TabIndex property to a value that is ____ the combo box's TabIndex value

integer

If the digits argument is omitted, the Math.Round function returns a(n) ____.

DropDownList

In a ____ combo box, the text portion is not editable.

False

Like a Sub procedure header, a Function procedure header includes the As dataType section. T or F?

0

Like the first item in a list box, the first item in a combo box has an index of ____.

False

Math.Round(3.234, 2) returns the number 3.24. T or F?

As

The ____ keyword in a function header identifies the data type of the data being returned.

True

The computer automatically processes an event procedure when the event occurs. T or F?

DropDown

The default combo box style in Visual Basic is ____.

287.88

The expression Math.Round(287.876, 2) yields a value of ____.