QR Code Barcode FAQ for ASP.NET

QR Code ASP.NET Barcode Generator is a functional Control DLL developed for the need of printing QR Code in ASP.NET. It was originally written by managed code in C#. The QR Code generation features could be used via Microsoft IIS as well.

More details of the following aspects of QR Code barcode generation in .NET Winform are presented in this page:

Terrek also provides more QR Code barcode generators for solutions in distinct developing environments, including QR Code .NET Winforms Generator, QR Code RDLC Generator, QR Code Office Add-in for Excel, and QR Code Java generator.

Data meets one of the following requirements could be encoded by a QR Code symbol:

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42&BarcodeData =Terrek QRCode;

Five data mode options are provided by QR Code ASP.NET Control for data encoding, and they are:

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42&BarcodeData=Terrek&QRCodeDataMode=0;

The smallest unit of QR Code is module. Module is a tiny square cell with the dark or light color. The size of the module is measured by the float value of BarWidth property. Pixel, cm, and inch could be used as the unit of measure.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42&BarWidth=2;

QR Code version defines how many modules are included in the generated QR Code symbol. V1 to V40 could be selected.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42&QRCodeVersions=V10;

Increasing the width of margins around the symbol is one way to enhance the readability of the QR Code barcode image. The control library set the left, right, top, and bottom margins separately with float values.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42& MarginL=10& MarginR=10& MarginT=10& MarginB=10;

If the breakdown parameters are not provided, you can set the width and height of the barcode image directly. Once you enabled the image resize function, you only need to provide the size of entire barcode image. This intelligent QR Code will draw the barcode with reasonable parameters. The generated QR Code is 100% compatible with ISO / IEC 18004 (2nd edition 2006-09-01).

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42& ImageResize=true&ImageWidth=150&ImageHeight=150;

With Terrek Barcode ASP.NET Control DLL, QR Code is created as high quality GIF, JPEG, or PNG graphic images. Tiff and Bitmap are supported as well. Please ensure the accordance of image format and suffix of image file name.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42& ImageFormat=Png;

DPI (Dots per inch) is used commonly as the measure of printing resolution. The resolution of image generated by QR Code generator could be managed with DPI.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42& DotsPerInch=96;

In case of any specified requirement of the image orientation, image rotation function is added to the control library. Rotation angles of 90, 180, and 270 degrees are supported.

Sample URL: http://YourDomain:Port/barcode/aspcontrol.aspx?Symbology=42& Rotation=Degree90;

The following types of .NET projects are also supported by QR Code Generator Control: