The QuickWatch Dialog Box
You use the QuickWatch dialog box to, as its name implies, quickly evaluate a variable or expression. Figure 12-20 shows a QuickWatch dialog box. Figure 12-20 The QuickWatch dialog box The QuickWatch dialog box is an alternative to the Watch window. The QuickWatch dialog box provides a quicker, simpler way of evaluating or editing a single variable or expression than does the Watch window. However, QuickWatch is a modal dialog box, so unlike the Watch window, you cannot leave the QuickWatch...
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Figure 4-1 Overflow error while project is running Since an Integer data type can represent any whole number that you can represent with a Byte data type, and has a far greater range, you could avoid, or at least minimize, overflow errors by always using the Integer data type instead of the Byte data type. However, there is a downside to this solution. While the Byte data type only requires 1 byte of memory, the Integer data type requires 4. The difference between 1 and 4 bytes might seem...
Visual Basic NETA Beginners Guide
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radAdd
These controls correspond to the four arithmetic operators to be used in this Calculator project. To have one radio button start out checked, set the Checked property of radAdd to True. The Checked property of the other radio buttons automatically will be False, since only one radio button per group can be chosen at a time. 4. Add two TextBox controls, named txtOperand1 and txtOperand2, and set their Text properties to an empty string . Set the MaxLength property used in the Tuition project of...
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Overloaded procedures must differ from each other in what respect Overloaded procedures must differ from each other in respect to their argument list. In Module 7 we wrote a Calculator application. That project performs basic arithmetic addition, subtraction, multiplication, and division. The user inputs the two operands and chooses an operator by clicking a radio button corresponding to the operator. The application, befo re performing the arithmetic calculation, confirms that the user...
RadioButton Control
RadioButton controls also are commonly used in Windows applications. Taking again the example of the Print dialog box, there are radio buttons for Print to all pages, current page, or selected pages. The primary difference between CheckBox and RadioButton controls is that while each check box is independent, all radio buttons in a group are related in that only one of them can be chosen at any one time. Therefore, the RadioButton control is ideal for situations in which there are more than two...
Module 6 Comparison and Logical Operators
1. What data type do the comparison operators return 2. Which data type does the Like comparison operator compare D. String 3. Which comparison operator compares references to objects C. Is 4. Which statement affects whether a string comparison is case sensitive 5. Which of the following is not used in pattern matching in string comparisons 6. Comparison operations rank, in precedence B. Lower than arithmetic operators but higher than logical operators 7. Which of the following logical...