AJAX AutoComplete/AutoSuggest TextBox

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections.Generic;
using System.Web.UI.HtmlControls;

public partial class DataViewBinding : System.Web.UI.Page
{
	#region Session Variables
	private DataTable _dtBands
	{
		get { return (DataTable)Session["_dtBands"]; }
		set { Session["_dtBands"] = value; }
	}
	#endregion

	protected void Page_Load(object sender, EventArgs e)
    {
		if (!this.IsPostBack)
		{
			FillDataTable();
		}
    }
	
	protected override void OnInit(EventArgs e)
	{
		base.OnInit(e);
		this.asbFavoriteBand.TextChanged += new Anthem.AutoSuggestBox.TextChangedEventHandler(asbFavoriteBand_TextChanged);
		this.asbFavoriteBand.SelectedValueChanged += new Anthem.AutoSuggestBox.SelectedValueChangedHandler(asbFavoriteBand_SelectedValueChanged);
		this.btnValidate.Click += new EventHandler(btnValidate_Click);
	}


	#region FillDataTable
	/// <summary>
	/// This method fills the datatable that is used in this example
	/// On a real world application you usually would use a database
	/// </summary>
	private void FillDataTable()
	{
		_dtBands = new DataTable();
		_dtBands.Columns.Add(new DataColumn("BandID", typeof(int)));
		_dtBands.Columns.Add(new DataColumn("BandName", typeof(string)));

		DataRow row = _dtBands.NewRow();
		row["BandID"] = 1;
		row["BandName"] = "Dream Theater";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 2;
		row["BandName"] = "Pain of Salvation";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 3;
		row["BandName"] = "Savatage";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 4;
		row["BandName"] = "Iron Maiden";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 5;
		row["BandName"] = "Symphony X";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 6;
		row["BandName"] = "Angra";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 7;
		row["BandName"] = "Metallica";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 8;
		row["BandName"] = "System of a Down";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 9;
		row["BandName"] = "Whitesnake";
		_dtBands.Rows.Add(row);

		row = _dtBands.NewRow();
		row["BandID"] = 10;
		row["BandName"] = "Van Halen";
		_dtBands.Rows.Add(row);
	}
	#endregion

	void asbFavoriteBand_SelectedValueChanged(object source, EventArgs e)
	{
		lblID.Text = asbFavoriteBand.SelectedValue;
		lblName.Text = asbFavoriteBand.Text;
		//Tells the anthem library to update the controls
		lblID.UpdateAfterCallBack = true;
		lblName.UpdateAfterCallBack = true;
	}

	/// <summary>
	/// This event handler is used to fill the suggest list that appears as the user types
	/// Usually you would query a database, but for the sake of simplicity we are querying an in-memory datatable
	/// </summary>	
	void asbFavoriteBand_TextChanged(object source, Anthem.AutoSuggestEventArgs e)
	{
		//Creates a dataview of the session's datatable		
		DataView dv = new DataView(_dtBands);
		//Filters the datatable based on the CurrentText property
		dv.RowFilter = string.Format("BandName LIKE '%{0}%'", e.CurrentText);
		//Sets the dataview as the control's datasource				
		asbFavoriteBand.DataSource = dv;
		asbFavoriteBand.DataBind();
	}

	void btnValidate_Click(object sender, EventArgs e)
	{
		if (this.IsValid)		
			lblIsValid.Text = "Yes";		
		else
			lblIsValid.Text = "No";

		lblIsValid.UpdateAfterCallBack = true;
	}
}