What is a control

Control refers to the encapsulation of data and methods; a control can have its own properties and methods, where properties are simple visitors to the control data, and methods are some simple and visible functions of the control and the control creation process. Including design, development, and debugging; the greatest significance of creating controls is to encapsulate repetitive work, and secondly, to expand the functions of existing controls.

#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What is the control?

Control refers to the encapsulation of data and methods. Controls can have their own properties and methods, where properties are simple visitors to the control data, and methods are some simple and visible functions of the control. The control creation process includes design, development, and debugging (the so-called 3Ds development process, namely Design , Develop, Debug) work, and then the use of controls.

Designing controls is a tedious job. There is a huge difference between developing controls by yourself and using controls for visual program development, which requires programmers to be proficient in object-oriented programming. The greatest significance of creating controls is to encapsulate repetitive work, and secondly, to expand the functionality of existing controls.

User Interface Controls

Used to develop and build controls for user interface (UI) to help complete the development of interface elements such as windows, text boxes, buttons, and drop-down menus in software development.

represents: DXperience, WebUIStudio Premier, BCGControlBar, ComponentOne Studio, NetAdvantage, Xtreme Toolkit, etc.

Chart Control

A control used to develop charts to help the software realize data visualization and realize complex charts that are difficult to complete independently during development.

represents: FlexChart, TeeChart, AnyChart, ChartDirector, chart fx, Visifire, Iocomp, etc.

Report Control

Used to develop report controls to realize report browsing, design, editing, printing and other functions in the software.

represents: stimulsoft report, FastReport, ActiveReports, etc.

Table Control

A control specially used to develop tables (CELL), which mainly implements the functions of data processing and operation in the grid.

represents: WebGrid Enterprise, Spread, FlexGrid, etc.

Barcode Control

Used to generate, scan, read and print controls for barcodes.

represents: Barcode Xpress, TBarcode, Barcode Reader Toolkit, BarCode ComponentOne, etc.

Image processing controls

Generally refers to controls that help software realize image browsing and simple editing functions.

represents: ImagXpress, Image Uploader, leadtools, etc.

Document processing control

Generally refers to the control that implements the browsing and editing functions of document files.

stands for: add-in express for office and vcl, Aspose, TX Text Control, C1Word, etc.

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