C#でバーコードをHTMLとしてエクスポートする方法

// Example: Choosing between Data URL and file export based on size
GeneratedBarcode barcode = BarcodeWriter.CreateBarcode("LARGE-DATA-STRING-HERE", BarcodeEncoding.PDF417);

// Check estimated size before choosing export method
if (barcode.BinaryStream.Length < 32768) // 32KB threshold
{
    // Use Data URL for smaller barcodes
    string dataUrl = barcode.ToDataUrl();
    // Embed directly in HTML
}
else
{
    // Save as file for larger barcodes
    barcode.SaveAsImage("large-barcode.png");
    // Reference as external resource
}

' Example: Choosing between Data URL and file export based on size
Dim barcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("LARGE-DATA-STRING-HERE", BarcodeEncoding.PDF417)

' Check estimated size before choosing export method
If barcode.BinaryStream.Length < 32768 Then ' 32KB threshold
    ' Use Data URL for smaller barcodes
    Dim dataUrl As String = barcode.ToDataUrl()
    ' Embed directly in HTML
Else
    ' Save as file for larger barcodes
    barcode.SaveAsImage("large-barcode.png")
    ' Reference as external resource
End If

// Generate multiple barcodes for a product catalog
var products = new[] { "PROD-001", "PROD-002", "PROD-003" };
var htmlBuilder = new StringBuilder();

foreach (var productCode in products)
{
    var barcode = BarcodeWriter.CreateBarcode(productCode, BarcodeEncoding.Code128)
        .ResizeTo(200, 50)
        .SetMargins(10);

    htmlBuilder.AppendLine($"<div class='product-barcode'>");
    htmlBuilder.AppendLine($"  <p>Product: {productCode}</p>");
    htmlBuilder.AppendLine($"  {barcode.ToHtmlTag()}");
    htmlBuilder.AppendLine($"</div>");
}

Imports System.Text

' Generate multiple barcodes for a product catalog
Dim products = New String() {"PROD-001", "PROD-002", "PROD-003"}
Dim htmlBuilder = New StringBuilder()

For Each productCode In products
    Dim barcode = BarcodeWriter.CreateBarcode(productCode, BarcodeEncoding.Code128) _
        .ResizeTo(200, 50) _
        .SetMargins(10)

    htmlBuilder.AppendLine("<div class='product-barcode'>")
    htmlBuilder.AppendLine($"  <p>Product: {productCode}</p>")
    htmlBuilder.AppendLine($"  {barcode.ToHtmlTag()}")
    htmlBuilder.AppendLine("</div>")
Next

// Create a customized barcode with specific styling
var customBarcode = BarcodeWriter.CreateBarcode("CUSTOM-123", BarcodeEncoding.Code128)
    .AddAnnotationTextAboveBarcode("Product ID")
    .SetMargins(15)
    .ChangeBackgroundColor(System.Drawing.Color.LightGray);

// Get the HTML tag and add custom attributes
string htmlTag = customBarcode.ToHtmlTag();
string customizedTag = htmlTag.Replace("<img", "<img class='barcode' id='product-123'");

' Create a customized barcode with specific styling
Dim customBarcode = BarcodeWriter.CreateBarcode("CUSTOM-123", BarcodeEncoding.Code128) _
    .AddAnnotationTextAboveBarcode("Product ID") _
    .SetMargins(15) _
    .ChangeBackgroundColor(System.Drawing.Color.LightGray)

' Get the HTML tag and add custom attributes
Dim htmlTag As String = customBarcode.ToHtmlTag()
Dim customizedTag As String = htmlTag.Replace("<img", "<img class='barcode' id='product-123'")

// Generate HTML files for inventory items
public void GenerateInventoryBarcodes(List<InventoryItem> items)
{
    foreach (var item in items)
    {
        var barcode = BarcodeWriter.CreateBarcode(item.SKU, BarcodeEncoding.Code128)
            .AddAnnotationTextBelowBarcode($"{item.Name} - ${item.Price:F2}")
            .ResizeTo(300, 100);

        // Save with descriptive filename
        string filename = $"barcode_{item.SKU}_{DateTime.Now:yyyyMMdd}.html";
        barcode.SaveAsHtmlFile(filename);
    }
}

' Generate HTML files for inventory items
Public Sub GenerateInventoryBarcodes(items As List(Of InventoryItem))
    For Each item In items
        Dim barcode = BarcodeWriter.CreateBarcode(item.SKU, BarcodeEncoding.Code128) _
            .AddAnnotationTextBelowBarcode($"{item.Name} - ${item.Price:F2}") _
            .ResizeTo(300, 100)

        ' Save with descriptive filename
        Dim filename As String = $"barcode_{item.SKU}_{DateTime.Now:yyyyMMdd}.html"
        barcode.SaveAsHtmlFile(filename)
    Next
End Sub