Update Label - using UpdateProgress

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Hello Everyone,
I been trying for hours to figure out how to update the Label text in an UpdateProgress control in each iteration of a FOR LOOP running on the server?
when the user click send email button , it go through loop to check if the user is inside this location and if its then add the user email to the email list.
I don't just want to show "sending or loading ..."; but rather: 2 out of 100 for example.

VB

If email <> "" Then
                   dcount += 1
<pre> Session("dcount") = dcount
<pre>Dim counterStatus As Label = CType(UpdateProgress1.FindControl("lblCounterStatus"), Label)
counterStatus.Text= Session("dcount") = dcount

the label never shows while it's searching

and here is my aspx

<asp:UpdatePanel ID="UpdatePanel2" runat="server">

                   <ContentTemplate>
                   <asp:Label ID="lblEmailStatus" runat="server"></asp:Label> <br />
                    <asp:Button ID="btnSend" runat="server" Style="text-align: center" Text="Send"
                   Width="101px" />


                                             <asp:Label ID="lblStatus2" runat="server" Text=""></asp:Label>
                                             <br />
                       <asp:Label ID="lblTimer" runat="server"></asp:Label>
                                              <br />

                   </ContentTemplate>
               </asp:UpdatePanel>
               <%-- <asp:Timer ID="Timer1" runat="server" OnTick="Timer1_tick" Interval="500" Enabled="false">
                       </asp:Timer>--%>
               <asp:Label ID="lblsending" Visible="false" runat="server" Text="Please do not close this page till the counter finish"></asp:Label>
               <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel2">
                   <ProgressTemplate>
                       <asp:Label ID="lblCounterStatus" runat="server" ></asp:Label>
                       <br />
                       <img alt="progress" src="images/anim0003-1_e0.gif"/>
              Sending...
                   </ProgressTemplate>
               </asp:UpdateProgress>

Posted 9-Oct-12 6:20am

Mike988

Updated 9-Oct-12 6:29am

v3

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Teenustar · Accepted Answer · 2012-10-09T08:13:00

Solution 1

Try this

VB

Dim yourLabel As Label
yourLabel = DirectCast(UpdateProgress1.Controls(0).FindControl("lblCounterStatus"), Label)
yourLabel .Text = "your text"

Posted 9-Oct-12 8:13am

Teenustar

TheCoolCoder · Accepted Answer · 2012-10-09T19:49:00

You can use a static counter variable and use the label inside another updatepanel to achieve what you intend to do. I have added a dummy button to a second updatepanel whose click will be simulated via javascript in every 100 milliseconds in this example.

Try this

HTML:

XML

<div>
        <asp:UpdatePanel ID="UpdatePanelProcess" runat="server">
            <ContentTemplate>
                <asp:Button runat="server" Text="Process" ID="btnProcess" OnClientClick="Process();"
                    OnClick="btnProcess_Click" />
            </ContentTemplate>
        </asp:UpdatePanel>
        <asp:UpdatePanel ID="UpdatePanel2" runat="server">
            <ContentTemplate>
                <asp:Button runat="server" Text="DummyButton" ID="btnDummy" Style="display: none;"
                    OnClick="btnDummy_Click" />
                <asp:Label ID="lblCounterStatus" runat="server"  ></asp:Label>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>

    <script type="text/javascript">


        function Process() {
            var btn = document.getElementById('<%=btnDummy.ClientID%>');
            btn.click();
            setTimeout(Process, 100);

        }
    </script>

Code Behind:

C#

protected void btnProcess_Click(object sender, EventArgs e)
        {
            Process();

        }

        static int counter = 1;

        void Process()
        {
            for (counter = 1; counter < 10; counter++)
            {
                Thread.Sleep(1000);
            }

        }

        protected void btnDummy_Click(object sender, EventArgs e)
        {
            lblCounterStatus.Text = counter.ToString();

        }

Hope this helps.