Prerequisites
- Neodynamic Barcode Professional 3.0 (or greater) for ASP.NET (WebControl)
- Microsoft .NET Framework 2.0 (or greater)
- Microsoft Visual Studio 2005
- Microsoft SQL Server 2005 (any version) with Northwind Database sample installed
- Crystal Report for Visual Studio .NET 2005

In the following Step-By-Step Guide we're going to create a Crystal Report which features barcoding capabilities by using Barcode Professional for ASP.NET and using as data source for the report a Typed DataSet.

Follow these steps:
- Open Visual Studio and create a new ASP.NET Website naming it CrystalReportBarcodeDataSet.
- Add a new DataSet item to the project and name it Northwind.xsd

  
  Adding a Typed DataSet

  Click Add button. You will be asked if you want to place the Northwind.xsd file in the App_Code directory. Answer yes.

  After that, the TableAdapter Configuration Wizard is automatically launched so please follow its steps.

  In the first step, please create a connection to the Northwind SQL Server Database sample and click Next. In the second step, choose "Use SQL statements" and click Next. After that, please enter the following SQL Statement:

  SELECT ProductID, ProductName, UnitPrice FROM Products

  
  Specifying a SQL Statement that returns Northwind Product info

  Click Finish to close the Wizard dialog box.

- After that, add a new custom Column to the DataTable just created and name it Barcode as is shown in the following figure

  
  Adding a new Column to the DataTable for barcoding purpose

- Change the data type of the Barcode column to System.Byte[] (Array of Byte). NOTE: the System.Byte[] data type is not listed and thus why you must type it manually.

  
  Setting up the Barcode Column to System.Byte[] data type

- Save the Northwind.xsd file.
- Now add a new Crystal Report item to the project and name it CrystalReportBarcode.rpt.

  
  Adding a Crystal Report to the project

  Click Add button. Next, choose "Blank Report" in the Crystal Report Gallery dialog box.

  
  Creating a blank report

  Click OK button.

- Launch Crystal Report Database Expert by going to Crystal Reports > Database > Database Expert...

  
  Opening Crystal Reports Database Expert dialog box

  In the Database Expert dialog box select the Products DataTable (from the left pane) so it appears in the "Selected Tables" list (right pane) as is shown in the following figure.

  
  Choosing the Products DataTable as data source of the Crystal Report

  Click OK button. After that, the Products DataTable should be available in the Field Explorer Window as is shown in the following figure. NOTE: To display the Field Explorer press Ctrl+Alt+T

  
  The Products DataTable available in the Field Explorer

- Please design the report so it looks like the following figure. Just drag & drop the fields from the Field Explorer onto the report as is shown in the figure.

  
  The barcode report layout

  The most important field in our scenario is Barcode (Please DO NOT change the dimensions of such field on the report surface). Select the Barcode item on the report and right-clicking onto it select "Format Object" from the context menu to open the Format Editor dialog box. In that dialog box, please check Can Grow option and click OK button.

  
  Setting up "Can Grow" option for the Barcode item in the Format Editor dialog box

- Save the report.
- Now Create/Open an ASP.NET WebForm at design time and drag & drop a CrystalReportViewer control onto it.
- After that, from the Solution Explorer, add a reference to Barcode Professional for ASP.NET assembly: Neodynamic.WebControls.Barcodeprofessional.dll
- Write the following code in the Page_Load event procedure.

  Visual Basic .NET
  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    'Filling Products DataTable from DB
    Dim ta As New NorthwindTableAdapters.ProductsTableAdapter()
    Dim dt As New Northwind.ProductsDataTable()
    ta.Fill(dt)

    'Create an instance of Barcode Professional
    Dim bcp As New Neodynamic.WebControls.BarcodeProfessional.BarcodeProfessional()
    'Barcode settings
    bcp.Symbology = Neodynamic.WebControls.BarcodeProfessional.Symbology.Code39
    bcp.Extended = true
    bcp.AddChecksum = false
    bcp.BarHeight = 0.4f

    'Append fictitious Company internal prefix
    Dim prodPrefix As String = "12345"

    Dim row As Northwind.ProductsRow    
    For Each row In dt.Rows
        'Set the value to encode
        bcp.Code = prodPrefix + row.ProductID.ToString()
        'Generate the barcode image and store it into the Barcode Column
        row.Barcode = bcp.GetBarcodeImage(System.Drawing.Imaging.ImageFormat.Png)
    Next

    'Create a AveryMailLabels report object
    'and set its data source with the DataSet
    Dim report As New CrystalDecisions.CrystalReports.Engine.ReportDocument()
    Dim rptFile As String = Server.MapPath("CrystalReportBarcode.rpt")
    report.Load(rptFile)
    report.SetDataSource(CType(dt, DataTable))
    
    Me.CrystalReportViewer1.ReportSource = report
  End Sub


  Visual C# .NET
  protected void Page_Load(object sender, EventArgs e)
  {
    //Filling Products DataTable from DB
    NorthwindTableAdapters.ProductsTableAdapter ta = new NorthwindTableAdapters.ProductsTableAdapter();
    Northwind.ProductsDataTable dt = new Northwind.ProductsDataTable();
    ta.Fill(dt);

    //Create an instance of Barcode Professional
    Neodynamic.WebControls.BarcodeProfessional.BarcodeProfessional bcp = new Neodynamic.WebControls.BarcodeProfessional.BarcodeProfessional();
    //Barcode settings
    bcp.Symbology = Neodynamic.WebControls.BarcodeProfessional.Symbology.Code39;
    bcp.Extended = true;
    bcp.AddChecksum = false;
    bcp.BarHeight = 0.4f;

    //Append fictitious Company internal prefix
    string prodPrefix = "12345";

    //Update DataTable with barcode image
    foreach (Northwind.ProductsRow row in dt.Rows)
    {
        //Set the value to encode
        bcp.Code = prodPrefix + row.ProductID.ToString();
        //Generate the barcode image and store it into the Barcode Column
        row.Barcode = bcp.GetBarcodeImage(System.Drawing.Imaging.ImageFormat.Png);
    }

    //Create a report object
    //and set its data source with the DataSet
    CrystalDecisions.CrystalReports.Engine.ReportDocument report;
    report = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
    string rptFile = Server.MapPath("CrystalReportBarcode.rpt");
    report.Load(rptFile);
    report.SetDataSource((DataTable)dt);

    this.CrystalReportViewer1.ReportSource = report;
  }

- That's it. Run your application. You should get the barcode images displayed on the report.

  
  The Crystal Report featuring barcodes generated by Barcode Professional

  CrystalReportViewer control lets you to export the displayed report to Acrobat PDF, Microsoft Excel XLS as well as other well know document formats. In all cases the barcode images are maintained.

  
  The Crystal Repor report in Acrobat PDF format featuring barcodes generated by Barcode Professional

Links:
This Demo
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Download Barcode Professional for ASP.NET
More Information about Neodynamic Barcode Professional for ASP.NET


Neodynamic
.NET Components & Controls
http://www.neodynamic.com
http://www.barcode-for-aspnet.com