How to Read & Scan Barcode in C# Using NET MAUI

<!-- XAML for User Interface -->
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="BarcodeScannerApp.MainPage">
    <ScrollView>
        <VerticalStackLayout Padding="10">
            <Button Text="Select Image" Clicked="OnSelectImageClicked"/>
            <Image x:Name="SelectedImage" HeightRequest="200"/>
            <Button Text="Scan Barcode" Clicked="OnScanBarcodeClicked"/>
            <Label x:Name="DecodedTextLabel" Text="Decoded text will appear here."/>
            <Button Text="Copy to Clipboard" Clicked="OnCopyToClipboardClicked"/>
        </VerticalStackLayout>
    </ScrollView>
</ContentPage>

// C# Code-behind for Main Functionality
using IronBarCode;
using Microsoft.Maui.Controls;

namespace BarcodeScannerApp
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        // Handler for selecting an image from device storage.
        private async void OnSelectImageClicked(object sender, EventArgs e)
        {
            // Code to select an image
            var result = await FilePicker.PickAsync(new PickOptions
            {
                PickerTitle = "Select a Barcode Image"
            });

            if (result != null)
            {
                // Displaying selected image in the Image control
                SelectedImage.Source = ImageSource.FromFile(result.FullPath);
            }
        }

        // Handler for scanning barcode from the selected image.
        private void OnScanBarcodeClicked(object sender, EventArgs e)
        {
            try
            {
                var bitmap = IronBarCode.Bitmap.LoadFromFile(result.FullPath);

                // Using Iron Barcode to read the barcode from the image
                BarcodeResult result = BarcodeReader.ReadASingleBarcode(bitmap);

                // Displaying the decoded text in the label
                DecodedTextLabel.Text = result.Text;
            }
            catch (Exception ex)
            {
                DisplayAlert("Error", "Failed to read barcode: " + ex.Message, "OK");
            }
        }

        // Handler for copying decoded text to clipboard.
        private async void OnCopyToClipboardClicked(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(DecodedTextLabel.Text))
            {
                await Clipboard.Default.SetTextAsync(DecodedTextLabel.Text);
                await DisplayAlert("Success", "Text copied to clipboard!", "OK");
            }
            else
            {
                await DisplayAlert("Error", "No decoded text to copy.", "OK");
            }
        }
    }
}

' C# Code-behind for Main Functionality
Imports IronBarCode
Imports Microsoft.Maui.Controls

Namespace BarcodeScannerApp
	Partial Public Class MainPage
		Inherits ContentPage

		Public Sub New()
			InitializeComponent()
		End Sub

		' Handler for selecting an image from device storage.
		Private Async Sub OnSelectImageClicked(ByVal sender As Object, ByVal e As EventArgs)
			' Code to select an image
			Dim result = Await FilePicker.PickAsync(New PickOptions With {.PickerTitle = "Select a Barcode Image"})

			If result IsNot Nothing Then
				' Displaying selected image in the Image control
				SelectedImage.Source = ImageSource.FromFile(result.FullPath)
			End If
		End Sub

		' Handler for scanning barcode from the selected image.
		Private Sub OnScanBarcodeClicked(ByVal sender As Object, ByVal e As EventArgs)
			Try
				Dim bitmap = IronBarCode.Bitmap.LoadFromFile(result.FullPath)

				' Using Iron Barcode to read the barcode from the image
				Dim result As BarcodeResult = BarcodeReader.ReadASingleBarcode(bitmap)

				' Displaying the decoded text in the label
				DecodedTextLabel.Text = result.Text
			Catch ex As Exception
				DisplayAlert("Error", "Failed to read barcode: " & ex.Message, "OK")
			End Try
		End Sub

		' Handler for copying decoded text to clipboard.
		Private Async Sub OnCopyToClipboardClicked(ByVal sender As Object, ByVal e As EventArgs)
			If Not String.IsNullOrEmpty(DecodedTextLabel.Text) Then
				Await Clipboard.Default.SetTextAsync(DecodedTextLabel.Text)
				Await DisplayAlert("Success", "Text copied to clipboard!", "OK")
			Else
				Await DisplayAlert("Error", "No decoded text to copy.", "OK")
			End If
		End Sub
	End Class
End Namespace