Sometimes the page title disappears after update of an UpdatePanel RSS

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  arnoudaten

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  Sometimes the page title disappears after update of an UpdatePanel

  Oct 10, 2007 08:34 PM|LINK

  I changed my website bieragenda.nl into an Ajax enabled website, by placing

  <asp:scriptmanager ID="Scriptmanager1" runat="server" />
  <asp:ContentPlaceHolder runat="Server" id="content">
      <p>(content)</p>
  </asp:ContentPlaceHolder>
  
  in the masterpage, and added:

      <asp:UpdatePanel ID="UpdatePanel1" runat="server">
          <ContentTemplate>
  ...
          </ContentTemplate>
      </asp:UpdatePanel>
  
  

  in the other pages. Everything works fine, for example look at http://www.bieragenda.nl/month.aspx and click on the next mont in the calendar control, the panel is updated in the correct way. However the pages http://www.bieragenda.nl/archive.aspx and http://www.bieragenda.nl/overview.aspx seems to work fine, but the page title will disappear after new criteria are specified!!!

  How can I keep the page title in these two pages?

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  Luis Abreu

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 10, 2007 09:20 PM|LINK

  hello.

  the page title will always be updated at the end of a partial postback. are you sure that you're not changing it programatically during a partial postback? (for instance, are you changing the header.text property anywhere?)

  --
  Regards,
  Luis Abreu
  email: labreu_at_gmail.com
  EN blog:http://msmvps.com/blogs/luisabreu
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  arnoudaten

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 10, 2007 09:23 PM|LINK

  I am doing nothing with the title in the Master Page. The title in the Master Page is defined as:

      <title><asp:Localize id="locTitle" runat="server" text="<%$ Resources:resource, WebTitle%>" /></title>
  

   
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  Luis Abreu

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 10, 2007 10:02 PM|LINK

  hello again.

  hum, not quite sure on what might be happening there...have you tried changing the <asp:Localize> control with code that does the same thing ? (i believe that the method is called GetGlobalResourceObject)?

  --
  Regards,
  Luis Abreu
  email: labreu_at_gmail.com
  EN blog:http://msmvps.com/blogs/luisabreu
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  arnoudaten

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 11, 2007 08:57 PM|LINK

  Luis,

  Thanks for your reply, which helped me to find the problem and solution. You are right. In fact 

  <title><asp:Localize id="locTitle" runat="server" text="<%$ Resources:resource, WebTitle%>" /></title>
  

  is not legal, so I removed this line from the Master page. I also found out that in the pages http://www.bieragenda.nl/archive.aspx and http://www.bieragenda.nl/overview.aspx, for some reason there was: 

  <%@ Page Title="Untitled page" Language="VB" MasterPageFile="~/App_Master/Default.master" ... %>

  This was never a problem, but with Ajax, after an UpdatePanel, this title is used instead of the title specified in the Master page! In all my other pages, I have now: 

  <%@ Page Title="<%$ Resources:resource, WebTitle%>" Language="VB" MasterPageFile="~/App_Master/Default.master" ... %>

  My whole site works fine now.

   Arnoud

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  Luis Abreu

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 11, 2007 09:11 PM|LINK

  hello again.

  ahah...completly forgot about the possiblity of "overriding" the title set on the master :)

  --
  Regards,
  Luis Abreu
  email: labreu_at_gmail.com
  EN blog:http://msmvps.com/blogs/luisabreu
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  arnoudaten

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  Re: Sometimes the page title disappears after update of an UpdatePanel

  Oct 11, 2007 10:49 PM|LINK

  My site is using localization, MS Access database, streaming RSS feeds en emailsadresses as gif, and is now Ajax enabled. In fact the only things I did was:

  1. <div mce_keep="true">Change Web.config tro enable Ajax</div>
  2. <div mce_keep="true">In the Master page I changed:</div> <div mce_keep="true">                        <asp:ContentPlaceHolder runat="Server" id="content">
                                 <p>(content)</p>
                             </asp:ContentPlaceHolder></div>

            Into: 

                          <asp:ScriptManager ID="ScriptManager1" runat="server" />
                          <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                              <ContentTemplate>
  		<asp:ContentPlaceHolder runat="Server" id="content">
  		    <p>(content)</p>
  		 </asp:ContentPlaceHolder>
                              </ContentTemplate>
                          </asp:UpdatePanel>
  

  <div mce_keep="true">

  </div>As long as your pages are 'pure' ASP.Net, I found no problems to change my http://www.bieragenda.nl site into an Ajax enabled site with localization, Master page, RRS feeds, generating 100% validate (W3C.org) XHTML pages, etc. If anyone has questions how I solved some of these problems, do not hesitate to contact me.