Question

Ok, i renew my question.
Can I use UpdatePanel to handle this way.
You know, everything in the ContentTemplate, will be async, but how we handle the result before the result comes.
like

<asp:UpdatePanel>
    <ContentTemplate>
        <asp:Button ID="Button1" runat="server" Text="Button" /><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Label ID="info" runat="server" />
    </ContentTemplate>
</asp:UpdatePanel>

when we click the button, it will query the database in back-end, which need some time, maybe several seconds, maybe longer. now how can i make the info label to display “querying”, indicate the processing in back-end, the visitor should be wait for some while.

Answer 1

use ProgressTemplateuse ProgressTemplateuse ProgressTemplateuse ProgressTemplate