VB.net summary

After reading the vb.net video, the feeling of understanding is not very good, many nouns do not understand, so their own Baidu a bit, do a summary, and then have their own drawing of a picture of their organic combination together, the error of the place also please give us a lot of advice.

Is my general knowledge of vb.net, a lot of places he is similar to VB.

com Technology:

The so-called COM (Componentobject model, Component object models) is a specification that demonstrates how to establish a dynamically-changing component, which provides a number of things that customers and components should follow in order to ensure interoperability . Binary and network standards. This standard will allow communication between any two components regardless of whether the operating environment they are in is the same, whether the development language used is consistent, and whether it is running on the same computer.

Clr:

CLR is public language runtime (common language runtime) Span style= "Font-family:simsun" and java The virtual machine is also a run-time environment that is responsible for resources Management (Memory assign garbage clr

ADO :

ADO (ActiveX Dataobjects,activex Data Objects) is a Microsoft-proposed application Interface (API) used to implement data in an access-relational or non-relational database.

ADO :

Ado. NET's name originates from ADO (activexdataobjects) and is a library of COM components used to access data in previous Microsoft technologies. The ADO name is used because Microsoft wants to show that this is the preferred data provider in the net programming environment.

Ado. NET:

in the . NET , access to the database is primarily through ADO . ADO is all able to database

The collection of classes that are accessed. the set of ADO classes consists of several core component classes:

Connection Connect and manage database events.

Command the action command sent to the database.

Dataset manages records that are saved in memory.

DataAdapter saves the record information returned by the database in memory.

. NET :

. NET is the Microsoft XML webservices platform. XML WEB Services allows applications to communicate and share data over the Internet, regardless of which operating system, device, or programming language is used. The Microsoft. NET platform provides the necessary to create XML Web services and integrate them together. The benefits to individual users are seamless, engaging experiences.

DLL file:

DLL is the abbreviation of Dynamiclink Library, which means dynamic link library. in Windows, many applications are not a complete executable, and they are split into relatively independent, dynamic-link libraries, DLL files, placed in the system. When we execute a program, the corresponding DLL file is called. An application can have multiple DLL files, and a DLL file may also be shared by several applications, such that DLL files are called shared DLL files. For example, in the Windows operating system, the COMDLG32 DLL performs common functions related to dialog boxes. Therefore, each program can implement the Open dialog box by using the features contained in the DLL. This helps facilitate code reuse and efficient use of memory.

Component:

a component is the actual code that creates the project. That is, the component is a compiled chunk code that can be accessed by other code. in . NET , components are a necessary part of the application.

VB.net summary