which number required to make a barcode for local product?

The answer depends on the data you want to write on the barcode. The following article contains more information about each barcode type, which should help you decide which barcode type is good for your application.
https://www.codeproject.com/Articles/690035/Choosing-the-Right-Barcode-for-Your-Application

LEADTOOLS supports writing almost all common barcode types with few lines of code similar to this:

string imageFile = @"c:\temp\Barcodetest.png";
RasterImage image = RasterImage.Create(300, 300, 24, 300, RasterColor.White);
BarcodeEngine barcodeEngine = new BarcodeEngine();
BarcodeWriter barcodeWriter = barcodeEngine.Writer;
BarcodeData barcodeData = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.QR);
barcodeData.Value = "Here goes the value";
barcodeWriter.CalculateBarcodeDataBounds(LeadRect.Empty, image.XResolution, image.YResolution, barcodeData, null);
barcodeWriter.WriteBarcode(image, barcodeData, null);
using (RasterCodecs codecs = new RasterCodecs())
{
codecs.Save(image, imageFile, RasterImageFormat.Png, 0);
}

2 Replies

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Mohamed Abedallah8y ago
The answer depends on the data you want to write on the barcode. The following article contains more information about each barcode type, which should help you decide which barcode type is good for your application.
https://www.codeproject.com/Articles/690035/Choosing-the-Right-Barcode-for-Your-Application

LEADTOOLS supports writing almost all common barcode types with few lines of code similar to this:
string imageFile = @"c:\temp\Barcodetest.png";
RasterImage image = RasterImage.Create(300, 300, 24, 300, RasterColor.White);
BarcodeEngine barcodeEngine = new BarcodeEngine();
BarcodeWriter barcodeWriter = barcodeEngine.Writer;
BarcodeData barcodeData = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.QR);
barcodeData.Value = "Here goes the value";
barcodeWriter.CalculateBarcodeDataBounds(LeadRect.Empty, image.XResolution, image.YResolution, barcodeData, null);
barcodeWriter.WriteBarcode(image, barcodeData, null);
using (RasterCodecs codecs = new RasterCodecs())
{
codecs.Save(image, imageFile, RasterImageFormat.Png, 0);
}
Leon D8y ago
You can use Free Spire.barcode library to generate barcode with c#.

https://www.c-sharpcorner.com/UploadFile/38268a/generating-qr-code-in-C-Sharp/