在更新面板中禁用页面重新加载

Question

I have an ASP.NET page with an update panel. Normally, if I use an update panel, there should be postbacks only but no complete page reloads.

In my case, when I click a button, it always makes an page reload. Although this button is in an update panel.

What I found out: When I put

Response.End();

in the Button_Click Method, there is no reload.

My code on the .aspx:

    <asp:UpdatePanel ID="upUserDefault" runat="server">
        <Triggers>
            <asp:PostBackTrigger ControlID="btnPrintSelectedArticles" />
        </Triggers>
        <ContentTemplate>

        <cc1:MenuButton runat="server" ID="btnPrintSelectedArticles" OnClientClick="return ShowPrintStickersPopUp();" ButtonText="Print" />

    </ContentTemplate>
</asp:UpdatePanel>

Code behind:

Page Load:

btnPrintSelectedArticles.MenuButton_Click += btnPrintSelectedArticles_MenuButton_Click;

Method:

    void btnPrintSelectedArticles_MenuButton_Click(object sender, EventArgs e)
    {
        // Disables reload
        Response.End();
    }

MenuButton is a user control

Any ideas how to disable the reload of the complete page?

Edit: This is the ShowPrintStickersPopUp JS from the ClienClick. It simply checks a gridview if there are any checkboxes checked

function ShowPrintStickersPopUp() {
        var gridView = document.getElementById('<% =gvArticles.ClientID %>');

        //get all the control of the type INPUT in the base control.
        var inputs = gridView.getElementsByTagName("input");

        for (var n = 0; n < inputs.length; ++n) {
            if (inputs[n].type == 'checkbox' && inputs[n].checked) {
                // If at least 1 checkbox is checked, open popup
                window.open('PrintStickersPopUp.aspx', 'Print Stickers', 'width=700,height=550');
                return true;
            }
        }

        return false;
    }

Answer 1

Your client method looks good. Did you remember to add a ScriptManager object on your page? A lot of issues relating to UpdatePanels are related to not having one added.