hi, I have a google map in my web site that it have to be updated every 5 minutes. I have added  a Timer control in the page and an Updade panel to achieve that

The first time the page is display the map is populate with some marker in a javascript  function.

How can I call this function (javascript function )  from server side when the Tick event of the Timer is fired.?

Code: 

type="text/javascript">

<form id="form1" runat="server" >

<asp:ScriptManager ID="ScriptManager" runat="server" > </asp:ScriptManager>

<asp:UpdatePanel ID="updatePanel1" runat="server" EnableViewState="true" UpdateMode="Always" >

<Triggers><asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" /></Triggers>

<ContentTemplate><div id="map" style="width: 1000px; height: 500px" > </div></ContentTemplate>

</asp:UpdatePanel>

<asp:Timer Interval="15000" ID="Timer1" runat="server" OnTick="Timer1_Tick" ></asp:Timer>

You shouldn't go to the server for that.

Create a javascript function called pageLoad().  This will be executed automatically when the page loads (assuming you have a ScriptManager on the page).  In that function you can use setInterval to refresh your map on a timer:

function pageLoad() {
  // 30000 is 5 minutes converted to ms.
  setInterval(load, 30000);
}

You can call javascript using RegisterStartupScript Method of ScriptManager

ScriptManager.RegisterStartupScript(Page, Page.GetType(), "alertmsg", "alert('" + strMessage + "');", true);

http://forums.asp.net/t/1343558.aspx

http://forums.asp.net/t/1352993.aspx

Thank you very much for your help.

In the same way I can set up an interval, can I stop the timer when some event happen (like showing a modal pop up window) and set up again when the modal popup window is close?

Hi,

If you set the Timer with Interval, in ModalPopup client hidden event, you can clear the Timer.

Set Interval timer:

var timer= setInterval(function, 30000);

Clear Interval timer:

clearInterval(timer);

var timer=null;
function pageLoad()
{
    $find('ModalPopupBehaviorID').add_hidden(onhidden);
}
function onhidden()
{
    clearInterval(timer);
}