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Save(String,BarcodeData[]) Method

Summary

Saves an array of BarcodeData objects to an XML file.

Syntax

C++

public static void Save(  
   string fileName, 
   Leadtools.Barcode.BarcodeData[] data 
)

Public Overloads Shared Sub Save( _ 
   ByVal fileName As String, _ 
   ByVal data() As Leadtools.Barcode.BarcodeData _ 
)

public: 
static void Save(  
   String^ fileName, 
   Leadtools.Barcode.array<BarcodeData^>^ data 
)

Parameters

fileName
Name of the XML file to create

data
An array of BarcodeData objects to save.

Remarks

The load/save methods are provided as helper methods for the user. The BarcodeEngine, BarcodeReader and BarcodeWriter do not use these methods internally. data can be null (Nothing is VB). This is the equivalent of saving an empty array.

To load the data previously saved into an XML file, use BarcodeData.Load(string fileName).

To save and load data to an XML stream, use BarcodeData.Save(Stream stream, BarcodeData[] data) and BarcodeData.Load(Stream stream).

Example

This example reads all the barcodes in an image, saves the data to an XML disk file. It will then load the data from this XML and print out the values.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Forms; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
public void BarcodeData_LoadSaveExample() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "Barcode1.tif"); 
   string xmlFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcodes.xml"); 
 
   // Create a Barcode engine 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Load the image 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      using (RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         // Read all the barcodes 
         BarcodeData[] barcodes = engine.Reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, null); 
 
         // Print out the barcodes we found 
         Console.WriteLine("{0} barcodes found", barcodes.Length); 
         for (int i = 0; i < barcodes.Length; i++) 
         { 
            BarcodeData barcode = barcodes[i]; 
            Console.WriteLine("  {0} - {1} - {2}", i + 1, barcode.Symbology, barcode.Value); 
         } 
         Console.WriteLine("-----------------"); 
 
         // Save the barcodes to an XML file 
         BarcodeData.Save(xmlFileName, barcodes); 
 
         // Now load the data back and print them out 
         barcodes = BarcodeData.Load(xmlFileName); 
         Console.WriteLine("{0} barcodes loaded", barcodes.Length); 
         for (int i = 0; i < barcodes.Length; i++) 
         { 
            BarcodeData barcode = barcodes[i]; 
            Console.WriteLine("  {0} - {1} - {2}", i + 1, barcode.Symbology, barcode.Value); 
         } 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Forms 
Imports Leadtools.Barcode 
Imports Leadtools.ImageProcessing 
 
Public Sub BarcodeData_LoadSaveExample() 
   Dim imageFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Barcode1.tif") 
   Dim xmlFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcodes.xml") 
 
   ' Create a Barcode engine 
   Dim engine As New BarcodeEngine() 
 
   ' Load the image 
   Using codecs As New RasterCodecs() 
      Using image As RasterImage = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1) 
         ' Read all the barcodes 
         Dim barcodes() As BarcodeData = engine.Reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, Nothing) 
 
         ' Print out the barcodes we found 
         Console.WriteLine("{0} barcodes found", barcodes.Length) 
         For i As Integer = 0 To barcodes.Length - 1 
            Dim barcode As BarcodeData = barcodes(i) 
            Console.WriteLine("  {0} - {1} - {2}", i + 1, barcode.Symbology, barcode.Value) 
         Next 
         Console.WriteLine("-----------------") 
 
         ' Save the barcodes to an XML file 
         BarcodeData.Save(xmlFileName, barcodes) 
 
         ' Now load the data back and print them out 
         barcodes = BarcodeData.Load(xmlFileName) 
         Console.WriteLine("{0} barcodes loaded", barcodes.Length) 
         For i As Integer = 0 To barcodes.Length - 1 
            Dim barcode As BarcodeData = barcodes(i) 
            Console.WriteLine("  {0} - {1} - {2}", i + 1, barcode.Symbology, barcode.Value) 
         Next 
      End Using 
   End Using 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class