UpdatePanel with PostBackTrigger does not update the Label outside it and carry on after postbacks

Question

I have an update panel with postbacktriggers and the label that I plan to update is in the navbar, which is not included in the UpdatePanel where the triggers are located. Below is the structure of that code:

<asp:Label ID="totalScorecardsLabel" runat="server"></asp:Label>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                    <Triggers>
                        <asp:PostBackTrigger ControlID="btnGenerateScorecard" />
                        <asp:PostBackTrigger ControlID="exportPDFbtn" />
                        <asp:PostBackTrigger ControlID="generateNewBtn" />
                    </Triggers>
                    <ContentTemplate>
                             divs.. etc
                    </ContentTemplate>
    </UpdatePanel>

On the other hand, I have a click event for exportPDFbtn that adds entries to a list, therefore incrementing the list size.

int totalScorecards = loadTest1.Count + loadTest2.Count + loadTest3.Count + loadTest4.Count;
totalScorecardsLabel.Text = totalScorecards.ToString();

The totalScorecards Label is outside the UpdatePanel. I've set it to 0 on Page_Load if (!IsPostBack).

protected void Page_Load(object sender, EventArgs e)
            {
                if (!IsPostBack)
                {
                   init();//initialize all lists etc
                   int totalScorecards = 0;
                   totalScorecardsLabel.Text = totalScorecards.ToString();
    }
}

After clicking the exportPDFbtn, I expect a increment change in the label. After that I plan to click the generateNewScorecardbtn, and expect the totalScorecards number to carry on postbacks.

But the problem is that the label is still on 0 even though elements are successfully added to the lists in the exportPDF clickEvent (used breakpoints to discover if it really adds to the lists). I also use Server.Transfer("Scorecards.aspx") for the generateNewScorecardbtn.

Any help would be appreciated. Thanks!

Answer 1

Put it into another Update Pannel and use Update() method
https://msdn.microsoft.com/en-us/library/system.web.ui.updatepanel.update(v=vs.110).aspx