calendar control

I use calendar control in my projec.But error getting "calendar1".Error description is "the name  calendar1 does not exist in the current context."

 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Data.SqlClient;

using System.Text;

public partial class _Default : System.Web.UI.Page

{

Class1 classim = new Class1();

DateTime[] dates;

Class1.ClsData clsData;

DataTable dt;

protected void Page_Load(object sender, EventArgs e)

{

VerileriGetir();

}

private void VerileriGetir()

{

#region takvimload

if (!IsPostBack)

{

Calendar1.Attributes.Add("class", "labelLogin");

Calendar1.Attributes.Add("title", "");

clsData = new Class1.ClsData();

dt = clsData.NotesDate();

Session.Add("dtdata", dt);

}

dt = Session["dtdata"] as DataTable;

dates = new DateTime[dt.Rows.Count];

for (int i = 0; i < dt.Rows.Count; i++)

dates[i] = Convert.ToDateTime(dt.Rows[i][1].ToString());

#endregion

}

#region takvim ayar

protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)

{

for (int i = 0; i <= dates.GetUpperBound(0); i++)

{

if (e.Day.Date == dates[i])

{

e.Cell.Attributes.Add("class", "clndTopMenu");

e.Day.IsSelectable = true;

e.Cell.BackColor = System.Drawing.Color.FromName("#f79646");

e.Cell.ForeColor = System.Drawing.Color.Wheat;

string sorgu = "Select * from ETKINLIK Where Tarih like '%" + e.Day.Date.ToString().Substring(0, 10) + "%'";

//DataRow etkicek = kisayol.GetDataRow(sorgu);

SqlConnection baglan = new SqlConnection("Data Source=localhost;initial catalog=KodBank;User Id=sa;Password=123;");

baglan.Open();

SqlCommand komut = new SqlCommand(sorgu, baglan);

SqlDataReader oku;

oku = komut.ExecuteReader();

StringBuilder builde = new StringBuilder();

while (oku.Read())

{

string body = oku["Etkinlik"].ToString() + @"

Düzenlenme Saati : " + oku["Tarih"].ToString().Substring(10, 6) + "

---

";

builde.Append(body);

}

e.Cell.Attributes.Add("onMouseOver", "javascript:Goster('" + builde.ToString() + "');");

e.Cell.Attributes.Add("onMouseOut", "javascript:Gizle();");

}

}

}

#endregion

}