I'm working on a online exam project in which I have to show a countdown till the exam ends. I have used the following code:
aspx code:
<asp:ScriptManager ID= "SM1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel id="updPnl" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="lblTimer" style=" margin-top:35px; margin-left:825px;" runat="server" Font-Bold="True" Font-Names="Arial" Font-Size="X-Large" ForeColor="#6600CC"></asp:Label>
<div style="margin-right:25px;">
<asp:AlwaysVisibleControlExtender ID="AlwaysVisibleControlExtender1" runat="server" TargetControlID="lblTimer">
</asp:AlwaysVisibleControlExtender>
<asp:Timer ID="timer1" runat="server"
Interval="1000" OnTick="timer1_tick"></asp:Timer>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="timer1" EventName ="tick" />
</Triggers>
</asp:UpdatePanel>
Code behind is:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
bind1();
Result();
Session["Result"] = lblshow.Text;
if (!SM1.IsInAsyncPostBack)
{
SqlConnection sqlc1 = new SqlConnection(strcon);
sqlc1.Open();
String str = "select top 1 * from TestCreated order by Id desc";
SqlCommand cmd1 = new SqlCommand(str, sqlc1);
//sqlc.Open();
SqlDataReader dr = cmd1.ExecuteReader();
if (dr.Read())
{
Session["timeout1"] = dr["TestDuration"].ToString();
}
Session["timeout"] DateTime.Now.AddMinutes(Convert.ToInt32(Session["timeout1"].ToString())).ToString();
}
}
}
protected void timer1_tick(object sender, EventArgs e)
{
if (Session["timeout"] == null)
Session["time"] = DateTime.Now.AddSeconds(10);
if (0 > DateTime.Compare(DateTime.Now, DateTime.Parse(Session["timeout"].ToString())))
{
lblTimer.Text = string.Format("Time Left: 00:{0}:{1}", ((Int32)DateTime.Parse(Session["timeout"].ToString()).Subtract(DateTime.Now).TotalMinutes).ToString(), ((Int32)DateTime.Parse(Session["timeout"].ToString()).Subtract(DateTime.Now).Seconds).ToString());
}
This code is working fine on the local server but when I deployed it on my web server the timer is not counting down properly it decrements by 4 sec and 5 sec like this.even I tried by changing my timer interval but it's not working. How can I make this timer to countdown properly?