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Control.DataBinding Event

Occurs when the server control binds to a data source.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

Public Event DataBinding As EventHandler
Dim instance As Control 
Dim handler As EventHandler 

AddHandler instance.DataBinding, handler

This event notifies the server control to perform any data-binding logic that has been written for it.

How to: Create Event Handlers in ASP.NET Web PagesBuilding ASP .NET Web Applications
How to: Create Event Handlers in ASP.NET Web PagesBuilding ASP .NET Web Applications

' Create a class that implements the ITemplate interface. 
' This class overrides the InstantiateIn method to always 
' place templates in a Literal object. It also creates a  
' custom BindData method that is used as the event handler 
' associated with the Literal object's DataBinding event.   

Imports System
Imports System.Web
Imports System.Data
Imports System.Web.UI
Imports System.Web.UI.WebControls

Namespace UsingItemTemplatesVB

 Public Class GenericItem
   Implements ITemplate 

   Private column As String 

   Public Sub New(column As String)
      Me.column = column
   End Sub 'New 

   ' Override the ITemplate.InstantiateIn method to ensure  
   ' that the templates are created in a Literal control and 
   ' that the Literal object's DataBinding event is associated 
   ' with the BindData method. 
   Public Sub InstantiateIn(container As Control) Implements ITemplate.InstantiateIn
      Dim l As New Literal()
      AddHandler l.DataBinding, AddressOf Me.BindData
   End Sub 'InstantiateIn

   ' Create a public method that will handle the 
   ' DataBinding event called in the InstantiateIn method. 
   Public Sub BindData(sender As Object, e As EventArgs)
      Dim l As Literal = CType(sender, Literal)
      Dim container As DataGridItem = CType(l.NamingContainer, DataGridItem)
      l.Text = CType(container.DataItem, DataRowView)(column).ToString()
   End Sub 'BindData 
 End Class 'GenericItem
End Namespace 'UsingItemTemplatesVB

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0