Refresh Problem. Help!! : The Official Microsoft ASP.NET Forums

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ctee

Member

115 Points

250 Posts

Refresh Problem. Help!!

May 16, 2012 06:56 AM|LINK

Hi,

What i trying to do is, i just want to refresh the certain content in the page, i dont want to refresh the whole page. I using update panel + timer to refresh one of the content. Bt i fail to do so, it will refresh whole page instead small part.

Below are the code, can someone guide me with this problem.

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="MainPage.aspx.vb" Inherits="Default2" %>

<!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 id="Head1" runat="server">
    <title>Management</title>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" type="text/css" href="Styles/mainstyle.css" />

</head>
<body>
    <form id="form1" runat="server">
    <div>
    <!-- Begin Wrapper -->
<div id="wrapper">
  <!-- Begin Header -->
  <div id="header"><h1><a href=""></a>Chamber</h1>
      <h1>&nbsp;</h1></div>
  <!-- End Header -->
  <!-- Begin Faux Columns -->
  <div id="faux">
    <div>
    
    
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:Label ID="lbl1" runat="server" Text="The chamber still not refresh yet."></asp:Label>
                <asp:Button ID="btn1" runat="server" BackColor="#33CC33" ForeColor="White"
                    Text="Start" Width="80px" />
                <asp:Button ID="btn2" runat="server" BackColor="Red" ForeColor="White"
                    Text="Stop" />
                <br />
                <asp:Label ID="lbl2" runat="server">hi</asp:Label>
                <br />
                <asp:Label ID="lbl3" runat="server"></asp:Label>
<br />
            </ContentTemplate>
        </asp:UpdatePanel>
        <asp:Timer ID="Timer1" runat="server" Interval="10000" OnTick = "Timer1_Tick">
        </asp:Timer>
    
    
    </div>
      <div class="clear">
          <div>
          <table border="0">
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>
<asp:Label ID="Label4" runat="server"></asp:Label>
              <br />
<asp:Label ID="Label5" runat="server"></asp:Label>
</div>
      </div>
  </div>
  <!-- End Faux Columns -->
  <!-- Begin Footer -->
  <div id="footer"> &nbsp;©Copyright 2012. All rights reserved.</div>
  <!-- End Footer -->
</div>
<!-- End Wrapper -->
    </div>
    </form>
</body>
</html>

Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
Partial Class Default2
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Label5.Text = DateTime.Now.ToLongTimeString

    End Sub

 
    Protected Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs)
        lbl1.Text = "Updated at: " + DateTime.Now.ToLongTimeString()
        GetChamber()

    End Sub
    Private Function GetChamber() As Boolean

        Dim myConnection As New MySqlConnection
        Dim lCmd As New MySqlCommand
        Dim lRd As MySqlDataReader
        Dim lsCmd As String = Nothing
        Dim lTx As MySqlTransaction

        myConnection = New MySqlConnection("server=localhost; user id=root; password=; database=te; pooling=false;")


        Try
            'open connection
            myConnection.Open()
            lCmd.Connection = myConnection

            'Link the transaction
            lTx = myConnection.BeginTransaction
            lCmd.Transaction = lTx

            'check whether chamber end_time is null or gt value
            lsCmd = "Select Name, Start_Time, End_Time from chamber where Name = 'JPEWG2C35' and End_Time =''"
            lCmd.CommandText = lsCmd
            lRd = lCmd.ExecuteReader()

            If lRd.Read() = True Then
                Me.btn1.Enabled = True
                Me.btn2.Enabled = False
            Else
                Me.btn1.Enabled = False
                Me.btn2.Enabled = True
            End If

            lRd.Close()
            myConnection.Close()



        Catch ex As Exception
            Me.Label4.Text = ex.Message


        Finally
            If myConnection.State = ConnectionState.Open Then
                myConnection.Close()

            End If

        End Try
        Return True


    End Function


End Class

Reply

kedarrkulkar...

All-Star

34013 Points

5468 Posts

Re: Refresh Problem. Help!!

May 16, 2012 07:10 AM|LINK

you have not set updatepanel trigger to timer control... change u r updatepanel tag as this

<asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <Triggers>
                <asp:AsyncPostBackTrigger controlid="Timer1" eventname="Tick" />
            </Triggers>
            <ContentTemplate>
                <asp:Label ID="lbl1" runat="server" Text="The chamber still not refresh yet."></asp:Label>
                <asp:Button ID="btn1" runat="server" BackColor="#33CC33" ForeColor="White"
                    Text="Start" Width="80px" />
                <asp:Button ID="btn2" runat="server" BackColor="Red" ForeColor="White"
                    Text="Stop" />
                <br />
                <asp:Label ID="lbl2" runat="server">hi</asp:Label>
                <br />
                <asp:Label ID="lbl3" runat="server"></asp:Label>
<br />
            </ContentTemplate>
        </asp:UpdatePanel>
        <asp:Timer ID="Timer1" runat="server" Interval="10000" OnTick = "Timer1_Tick">
        </asp:Timer>

note the <triggers> tag

hope this helps...

Cheers!
KK

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