Question

I’ve got an ASPX page set up that loads and displays dynamic data from a local SQLite database. Since the data is being written to the database from a separate C# application, I’ve set up my ASPX page to refresh every 30 seconds when the database has flagged itself as actively receiving new data.

On my ASPX page, I’ve got a TabContainer with several different TabPanels that each represent a different view of the data. Now, when my page is being refreshed, the active tab panel is being reset to the one set in my ASPX page as the ActiveTabIndex.

I was wondering if there is an easy way to persist which tab is being remembered.

Thanks!

Edited to add code sample

MyPage.aspx

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPageFile.master" AutoEventWireup="true" CodeFile="MyPage.aspx.cs" Inherits="MyPage" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="content" Runat="Server">
    <asp:ToolkitScriptManager ID="ToolkitScriptManager" runat="server" />
    <asp:TabContainer ID="tabContainer" runat="server" ActiveTabIndex="1" CssClass="myTabStyle" Visible="true">
        <asp:TabPanel ID="tab1" runat="server" HeaderText="Tab 1">
            <ContentTemplate>
                <p>Hello</p>
            </ContentTemplate>
        </asp:TabPanel>
        <asp:TabPanel ID="tab2" runat="server" HeaderText="Tab 2">
            <ContentTemplate>
                <asp:PlaceHolder ID="tab2placeholder" runat="server" />
            </ContentTemplate>
        </asp:TabPanel>
        <asp:TabPanel ID="tab3" runat="server" HeaderText="Tab 3">
            <ContentTemplate>
                <asp:TabContainer ID="tab3content" runat="server" ActiveTabIndex="0" CssClass="myTabeStyle" />
            </ContentTemplate>
        </asp:TabPanel>
        <asp:TabPanel ID="tab4" runat="server" HeaderText="Tab 4">
            <ContentTemplate>
                <p>Blah.</p>
            </ContentTemplate>
        </asp:TabPanel>
    </asp:TabContainer>
</asp:Content>

MyPage.aspx.cs

public partial class MyPage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        ...
        if (isInProgress)
        {
            Response.AddHeader("Refresh", "30");
        }

        LoadTab1();
        LoadTab2();
        LoadTab3();
        LoadTab4();
        ...
    }
}

Answer 1

Try putting UpdatePanels within in the TabPanels. If you post a code sample of your ASPX it would be easier to help.