Visual Basic .NET16 how about using Multiple Constructors to Support Different Parameters how about using Multiple Constructors to Support Different Parameters To initialize class member variables, programmers make extensive use of constructor methods. Normally, for a simple class, the constructor method will support a parameter for each key class member variable. Consider the following Book class that provides support for the title, author, publisher, price, pagecount, and Indate: s.. 2008. 6. 24. how to set Event Handler at runtime How to set Event Handler at runtime? Not only can you create event handlers at design time, but you can also assign them at run time. First create the event handler. You must get the routine’s parameters exactly correct for the type of event handler you want to create. For example, a TextBox control’s TextChanged event handler must take two parameters with types System.Object and System.EventArg.. 2008. 6. 24. how to Initialize Class Member Variables Initializing Class Member Variables When you create a class object, you will normally immediately assign values to specific class member variables. For example, the following code fragment defines a Person class that contains fields for a Name, Age, OfficeNumber, and CellularPhoneNumber: Class Person Public Name As String Public Age As Integer Public OfficeNumber As String Public CellularPhoneNu.. 2008. 6. 24. How to Restrict Access to Class Members? How to Restrict Access to Class Members? When you create a class, you should think of the class as a “black box,” meaning, to use the class, you do not need to know how the class performs its processing, but rather, what processing the class performs. Your cellular phone, for example, is a good example of a black box. To use the phone, you do not need to understand how the phone’s receiver conve.. 2008. 6. 23. 이전 1 2 3 4 다음
