Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

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
Show:
© 2015 Microsoft