How to dynamically create Barcode Professional controls at runtime in ASP.NET

Product Barcode Professional for ASP.NET Published 02/24/2006 Updated 02/24/2006

Requirements

  Neodynamic Barcode Professional 2.0 for ASP.NET (WebControl)
  Microsoft .NET Framework (any version)
  Microsoft Visual Studio .NET (any version)

You can create barcode controls at runtime. In the following sample we're going to create a simple ASP.NET WebForm that shows this.
In the sample, we'll create a barcode control in the Page's Load event as well as we'll create a barcode control as a response to a click event of a Button in the WebForm.

Follow these steps to create a barcode control in the Page's Load event:

  • Open your .NET development tool - such as Visual Studio .NET - and create a new ASP.NET Web Application.
  • Drag and Drop a PlaceHolder control onto it. This control will hold the barcode control we're going to create at runtime.
  • In the Page_Load event procedure write the following code:

    VB

    
'Create an instance of Barcode Professional
Dim bcp As New BarcodeProfessional
'Set some properties
bcp.Code = "Created at RUNTIME!"
bcp.Symbology = Symbology.Code128
bcp.ForeColor = Color.RoyalBlue
bcp.Font.Bold = True
'Add the Barcode control
PlaceHolder1.Controls.Add(bcp)

    C#

    
'Create an instance of Barcode Professional
Dim bcp As New BarcodeProfessional
'Set some properties
bcp.Code = "Created at RUNTIME!"
bcp.Symbology = Symbology.Code128
bcp.ForeColor = Color.RoyalBlue
bcp.Font.Bold = True
'Add the Barcode control
PlaceHolder1.Controls.Add(bcp)

That's it. Build the ASP.NET Web Application and run it.

Barcode Professional dynamic creation at runtime

Follow these steps to create a barcode control in a Button's Click event:

  • Open your .NET development tool - such as Visual Studio .NET - and create a new ASP.NET Web Application.
  • Drag and Drop a Button control and a PlaceHolder control onto it.
  • In the Page_Load event procedure write the following code:

    VB

    
'Serve barcode requests
'This call is required when the control is created
'in a PostBack stage
BarcodeProfessional.ProcessBarcodeRequest()

    C#

    
//Serve barcode requests
//This call is required when the control is created
//in a PostBack stage
BarcodeProfessional.ProcessBarcodeRequest();
  • Finally, write the following code in the Button1_Click event procedure:

    VB

    
'Create an instance of Barcode Professional
Dim bcp As New BarcodeProfessional
'Set some properties
bcp.Code = "Created at RUNTIME TOO!"
bcp.Symbology = Symbology.Code128
bcp.ForeColor = Color.Red
bcp.Font.Bold = True
'Add the Barcode control
PlaceHolder1.Controls.Add(bcp)

    C#

    
//Create an instance of Barcode Professional
BarcodeProfessional bcp = new BarcodeProfessional();
//Set some properties
bcp.Code = "Created at RUNTIME TOO!";
bcp.Symbology = Symbology.Code128;
bcp.ForeColor = Color.Red;
bcp.Font.Bold = true;
//Add the Barcode control
PlaceHolder1.Controls.Add(bcp);

That's it. Build the ASP.NET Web Application and run it.

Barcode Professional dynamic creation at runtime



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