{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

// This will not give desired result.

// Session["timeout"] = DateTime.Now.AddMinutes(120).ToString();

String date = DateTime.Now.ToString();

RangeValidator1.MinimumValue = date;

timer1.Enabled = false;

BindTime();

}

// Response.Write(DateTime.Now);

}

protected void timer1_Tick(object sender, EventArgs e)

{

string sf = ddl.SelectedValue.ToString() ;

string tt = TextBox1.Text + " " + sf;

DateTime d1 = TextBox1.Text != string.Empty ? Convert.ToDateTime(tt) : DateTime.MinValue;

TimeSpan tspan = d1 - DateTime.Now;

tspan = new TimeSpan(tspan.Days, tspan.Hours, tspan.Minutes,tspan.Seconds);

// remaining.Seconds);

if (tspan.TotalSeconds < 0)

tspan = TimeSpan.Zero;

Label1.Text = tspan.ToString();

}

protected void Button1_Click(object sender, EventArgs e)

{

timer1.Enabled = true;

string ssd= ddl.SelectedValue.ToString();

string dsf = TextBox1.Text + " " + ssd;

DateTime d2 = TextBox1.Text != string.Empty ? Convert.ToDateTime(dsf) : DateTime.MinValue;

if (d2 < DateTime.Now)

{

Response.Write("sdjf");

}

}

private void BindTime()

{

// Set the start time (00:00 means 12:00 AM)

DateTime StartTime = DateTime.ParseExact("00:00", "HH:mm",null);

// Set the end time (23:55 means 11:55 PM

DateTime EndTime = DateTime.ParseExact("23:59", "HH:mm", null);

//Set 5 minutes interval

TimeSpan Interval = new TimeSpan(0,1,0);

//To set 1 hour interval

//TimeSpan Interval = new TimeSpan(1, 0, 0);

ddl.Items.Clear();

//ddlTimeTo.Items.Clear();

while (StartTime <= EndTime)

{

ddl.Items.Add(StartTime.ToString("hh:mm tt"));

//ddlTimeTo.Items.Add(StartTime.ToShortTimeString());

StartTime = StartTime.Add(Interval);

}

ddl.Items.Insert(0, new ListItem("--Select--", "0"));

//ddlTimeTo.Items.Insert(0, new ListItem("--Select--", "0"));

}

}