Timer and Updatepanel Issue RSS

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  Jackxxx

  Contributor

  3060 Points

  2788 Posts

  Timer and Updatepanel Issue

  Mar 02, 2012 05:57 PM|LINK

  I have a timer and and updatepanel on a page. A user enters some data and clicks a button to activate the timer. I have set the timer tick interval to 1000 (1 second). On the timer tick event (vb.net codebehine) I have an Insert into my DB that happends if a response is received from another process. My issue is the the insert into the DB is sometimes being repeated. In my timer tick event code I have set the timer.enabled to false, so it will not tick again.

  Is it possible that the timer.enabled property is not getting set to false before another tick happens?

  Any suggestions are appreciated!

  Sample of timer and updatepanel markup

  <table>
              <tr>
                  <td>
                      <div>
                          <asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="1000" Enabled="false">
                          </asp:Timer>
                      </div>
                      <asp:UpdatePanel ID="UpdatePanel3" UpdateMode="Conditional" runat="server">
                          <Triggers>
                              <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
                          </Triggers>
                          <ContentTemplate>
                              <asp:Label ID="lblResponse" runat="server" Text=""></asp:Label>
                          </ContentTemplate>
                      </asp:UpdatePanel>
                  </td>
              </tr>
          </table>

  Sample of code

          'check if we have received a response from the server.
          If stuff.CheckResponse() Then
              If stuff.ResponseCode = "000" Then
  		'Turn off timer so it will not tick again
                  Timer1.Enabled = False
  		'Do Insert into DB

    

  Thank you
  
  Jackxxx
• • Reply
  

  Primillo

  Star

  8727 Points

  1679 Posts

  Re: Timer and Updatepanel Issue

  Mar 03, 2012 07:21 AM|LINK

  You may check if the record exist in the database, if exist then don't do the insert

  Best Regards
  Primillo
  http://www.facebook.com/programandopuntonet
  • Marked as answer by Hua-Jun Li - MSFT on Mar 09, 2012 10:14 AM