Can't get timer event handler working

Question

On page, I have UpdatePanel with Timer that works fine:

<asp:Content ID="content" ContentPlaceHolderID="contentholder" runat="server">
    <asp:ScriptManager runat="server" EnablePartialRendering="true"  ID="ScriptManager"></asp:ScriptManager>
    <asp:Timer ID="Timer" runat="server" Interval="10000" ></asp:Timer>
    <asp:UpdatePanel ID="MainUpdatePanel" runat="server">
        <Triggers>
            <asp:AsyncPostBackTrigger ControlID="Timer" EventName="Tick" />
        </Triggers>
        <ContentTemplate>
<!-- some content, including repeaters... -->
        </ContentTemplate>
    </asp:UpdatePanel>
</asp:Content>

I can't get event handler in code behind working though.

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        Timer.Tick += Timer_Tick;
    }
}

private void Timer_Tick(object sender, EventArgs e)
{
_someFlag = true;
}

I can see during debug that Timer.Tick += happens just fine, yet _someFlag never changes its value and _someFlag = true; never happens despite page itself updating correctly. What am I missing?

Might be that you haven't added a `new EventHandler` to the function `Timer_Tick` — Bojje, Sep 26 '17 at 06:45
may this link will help full for you https://stackoverflow.com/questions/12073703/call-tick-event-when-timer-starts — Rita Chavda, Sep 26 '17 at 09:36

score 1 · Accepted Answer · answered Sep 26 '17 at 08:45

You have to add OnTick="Timer_Tick" attribute to your timer:

<asp:Timer runat="server" id="Timer1" Interval="10000" OnTick="Timer_Tick"></asp:Timer>

And remove below code from Page_Load:

Timer.Tick += Timer_Tick;

score 0 · Answer 2 · answered Sep 26 '17 at 14:42

0

Put 'Timer' inside 'Update panel' & 'Content Template' tag to handle trigger event

answered Sep 26 '17 at 14:42

Sanjeet Kumar

26
1

Nope, still same result. – user2363676 Sep 28 '17 at 10:46

Can't get timer event handler working

2 Answers2