![]() ![]() The project was abandoned after about ten years because the system proved unreliable after long-term use.īarcodes became commercially successful when they were used to automate supermarket checkout systems, a task for which they have become almost universal. The plates were read by a trackside scanner, located for instance, at the entrance to a classification yard, while the car was moving past. Two plates were used per car, one on each side, with the arrangement of the colored stripes encoding information such as ownership, type of equipment, and identification number. Developed by General Telephone and Electronics (GTE) and called KarTrak ACI (Automatic Car Identification), this scheme involved placing colored stripes in various combinations on steel plates which were affixed to the sides of railroad rolling stock. An early use of one type of barcode in an industrial context was sponsored by the Association of American Railroads in the late 1960s. However, it took over twenty years before this invention became commercially successful. The invention was based on Morse code that was extended to thin and thick bars. The barcode was invented by Norman Joseph Woodland and Bernard Silver and patented in the US in 1952 (US Patent 2,612,994). Later application software became available for devices that could read images, such as smartphones with cameras. Initially,were only scanned by special optical scanners called barcode readers. Later, two-dimensional (2D) variants were developed, using rhexagons and other geometric patterns, called matrix codes barcodes, although they do not use bars as such. Traditional barcodes systematically represent data by varying the widths and spacings of parallel lines, and may be referred to as linear or one-dimensional (1D). It has a method called GenerateImage() whose return value is Image object to generate image.A barcode (also bar code) is an optical, machine-readable representation of data the data usually describes something about the object that carries the barcode. Its constructor takes one parameter – a BarCodeControl instance. Indicates whether to show the checksum digit in Code128 and EAN128 Barcodes.īarCodeGenerator is the class to generate barcode image. Indicates whether to show the barcode text. Stores the type of border barcode image has. Indicates whether barcode image has border. Indicates the type of barcode that is to be generated. Stores the data that is to be encoded to two-dimension barcode. Stores the data that is to be encoded to one-dimension barcode. Here are some introductions about some of its properties: Name of Property BarCodeControl stores information about barcode. There are two import classes-BarCodeControl and BarCodeGenerator in this method. Then you will see " BarCodeControl" shown in " Spire.Barcode Controls" in Toolbox.ītnCreate_Click is the method to generate barcode image.NET Framework Components", Click " Browse", find the and double-click it. Right-click " Spire.Barcode Controls", select " Choose Items", select ".In Toolbox, right-click the blank area, select " Add Tab", name it " Spire.Barcode Controls".Step 1: Create ProjectĬreate a C#/VB.NET Windows Forms Application project in visual studio, name it Barcode. net applications (ASP.NET, WinForms) quickly and easily. Developers and programmers can use Spire.BarCode to add Enterprise-Level barcode formats to their. NET developers (C#, VB.NET, ASP.NET) to generate, read 1D & 2D barcodes. ![]() ![]() NET is a FREE and professional barcode component specially designed for. ![]()
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