Something

Line 1: using System;
Line 2: using System.Data;
Line 3: using System.Configuration;
Line 4: using System.Web;
Line 5: using System.Web.Security;
Line 6: using System.Web.UI;
Line 7: using System.Web.UI.WebControls;
Line 8: using System.Web.UI.WebControls.WebParts;
Line 9: using System.Web.UI.HtmlControls;
Line 10: 
Line 11: public partial class _Default : System.Web.UI.Page 
Line 12: {
Line 13:     protected void Page_Load(object sender, EventArgs e)
Line 14:     {
Line 15:         Label1.ToolTip = "Testing";
Line 16:     }
Line 17:     protected void Button1_Click(object sender, EventArgs e)
Line 18:     {
Line 19:         Label1.Text = "Test";
Line 20:     }
Line 21:     protected void Calendar1_SelectionChanged(object sender, EventArgs e)
Line 22:     {
Line 23:         Label1.Text = Calendar1.SelectedDate.Day.ToString();
Line 24:     }
Line 25: }