Timer.OnTick Method (EventArgs)
.NET Framework (current version)
Namespace:
System.Web.UI
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
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Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The following example shows an UpdatePanel control that displays a randomly generated stock price and the time that the stock price was generated. The Timer control updates the content in the UpdatePanel control every 10 seconds. The stock price and the time are set in a handler for the Tick event.
<%@ Page Language="VB" AutoEventWireup="true" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Timer Example Page</title> <script runat="server"> Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) OriginalTime.Text = DateTime.Now.ToLongTimeString() End Sub Protected Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) StockPrice.Text = GetStockPrice() TimeOfPrice.Text = DateTime.Now.ToLongTimeString() End Sub Private Function GetStockPrice() As String Dim randomStockPrice As Double = 50 + New Random().NextDouble() Return randomStockPrice.ToString("C") End Function </script> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="10000" /> <asp:UpdatePanel ID="StockPricePanel" runat="server" UpdateMode="Conditional"> <Triggers> <asp:AsyncPostBackTrigger ControlID="Timer1" /> </Triggers> <ContentTemplate> Stock price is <asp:Label id="StockPrice" runat="server"></asp:Label><BR /> as of <asp:Label id="TimeOfPrice" runat="server"></asp:Label> </ContentTemplate> </asp:UpdatePanel> <div> Page originally created at <asp:Label ID="OriginalTime" runat="server"></asp:Label> </div> </form> </body> </html>
.NET Framework
Available since 3.5
Available since 3.5
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