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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 EventHandler DataBinding

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

TopicLocation
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.  
*/ 

using System;
using System.Web;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace UsingItemTemplates
{
    public class GenericItem : ITemplate
    {
        private string column;

        public GenericItem(string column)
        {
            this.column = column;
        }

        // 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 void InstantiateIn(Control container)
        {
            Literal l = new Literal();
            l.DataBinding += new EventHandler(this.BindData);
            container.Controls.Add(l);
        }
        // Create a public method that will handle the 
        // DataBinding event called in the InstantiateIn method. 
        public void BindData(object sender, EventArgs e)
        {
            Literal l = (Literal) sender;
            DataGridItem container = (DataGridItem) l.NamingContainer;
            l.Text = ((DataRowView) container.DataItem)[column].ToString();

        }
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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