Using IronBarcode With C#, VB.NET & F

安裝

Install IronBarcode from NuGet:

Install-Package BarCode

The same BarCode package works for all three languages. No language-specific packages are required.

C# Example

C# is the most widely used language with IronBarcode. This example generates a QR code and saves it as a PNG:

:path=/static-assets/barcode/content-code-examples/get-started/net-language-support/net-language-support.cs

using IronBarCode;

// Generate a QR code and save it as an image
var qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250);
qrCode.SaveAsPng("qr-code.png");

// Read the barcode back from the saved image
var result = BarcodeReader.Read("qr-code.png");
Console.WriteLine(result.First().Value);

Imports IronBarCode

' Generate a QR code and save it as an image
Dim qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

' Read the barcode back from the saved image
Dim result = BarcodeReader.Read("qr-code.png")
Console.WriteLine(result.First().Value)

輸出

QRCodeWriter.CreateQrCode produces a 250×250 QR code that BarcodeReader.Read decodes back to https://ironsoftware.com.

VB.NET Example

VB.NET uses the same IronBarcode methods as C#. Only the syntax changes:

Imports IronBarCode

' Generate a QR code and save it as an image
Dim qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

' Read the barcode back from the saved image
Dim result = BarcodeReader.Read("qr-code.png")
Console.WriteLine(result.First().Value)

Imports IronBarCode

' Generate a QR code and save it as an image
Dim qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

' Read the barcode back from the saved image
Dim result = BarcodeReader.Read("qr-code.png")
Console.WriteLine(result.First().Value)

Imports IronBarCode

' Generate a QR code and save it as an image
Dim qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

' Read the barcode back from the saved image
Dim result = BarcodeReader.Read("qr-code.png")
Console.WriteLine(result.First().Value)

The output is identical to the C# example above.

VB.NET is supported across both .NET Framework and .NET Core projects. For a detailed walkthrough, see the VB.NET barcode generation tutorial.

F# Example

F# developers can reference IronBarcode directly. The library works in standard F# projects and in F# Interactive using the #r directive:

open IronBarCode

// Generate a QR code and save it as an image
let qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

// Read the barcode back from the saved image
let result = BarcodeReader.Read("qr-code.png")
printfn "%s" (result.First().Value)

open IronBarCode

// Generate a QR code and save it as an image
let qrCode = QRCodeWriter.CreateQrCode("https://ironsoftware.com", 250)
qrCode.SaveAsPng("qr-code.png")

// Read the barcode back from the saved image
let result = BarcodeReader.Read("qr-code.png")
printfn "%s" (result.First().Value)

The output is identical to the C# example above.

支援的 .NET 版本

IronBarcode supports a wide range of .NET runtimes across all three languages:

• .NET 9, 8, 7, 6, 5
• .NET Core 3.x, 2.x
• .NET Framework 4.6.2+
• .NET Standard 2.0

For platform-specific NuGet packages (Windows, Linux, macOS, iOS, Android), refer to the advanced installation guide.