This article demonstrates how to use Visual Basic. NET to access the registry. To do this, you write your own registry accessing functions by using the Base Class Libraries. Using the Registry and RegistryKey Classes. To access the registry without the constraints of the GetSetting and SaveSetting functions, use the Registry and RegistryKey classes in the Microsoft.Win32 namespace. The Registry class supplies the base registry keys to access values and subkeys in the registry. It has static (sha...
This article provides information about the HashTable collection. Because hashing eliminates the need for costly searching of data to retrieve the data, you can use hashing to efficiently retrieve data. Hashing uses the value of the key itself to locate of the data....
A rubber band or focus rectangle is a rectangle that tracks with the mouse pointer while you hold down the left mouse button. This technique is commonly used to delimit a selection in response to user mouse-pointer input. In the graphics device interface (GDI), these rectangles are commonly implemented by using raster operations (ROPs). However, the System.Drawing method is based on GDI+ (the successor to GDI), which has no support for ROPs. This article explains another approach for implementin...
This article describes how to create an Indexer property in Visual Basic .NET by using the default property attribute. A Microsoft C# indexer appears to a Visual Basic programmer as a default Item property, and a Visual Basic default property appears to a Microsoft C# programmer as an indexer. Indexers permit instances of a class to be indexed in the same way as arrays. ...
NET platform does not support multiple inheritance. Do not confuse multilevel inheritance with multiple inheritance. With multiple inheritance we can have a subclass that inherits from two classes at the same time....
Add an Inherits statement with the name of a class you want to use as a base class as the first statement in your derived class. The Inherits statement must be the first non-comment statement after the class statement. The following example defines two classes. The first class is a base class that has two methods. The second class inherits both methods from the base class, overrides the second method, and defines a field named Field....
