Page losing title after UpdatePanel asyncpostback

Question

I have just noticed recently that my page title will reset to the standard \"Untitled Page\" after I perform an asyncpostback from inside my UpdatePanel in the main

Answer 1

We ran into this exact issue on one of our sites.

The immediate fix was to reset the title in the master page codebehind page_load method.

Apparently when the ajax call occurs, it is rerunning the master page. This was causing our title to disappear.

For example:

protected void Page_Load(object sender, EventArgs e) {
    this.Page.Title = "whatever title you have...";
}

A better fix is to drop the MS updatepanel crap and start using JSON / jQuery where you actually have some decent control over the calls.

Answer 2

Are you opposed to using the Title property of the Content Page?

<%@ Page Title="Your Page Title" Language="vb" AutoEventWireup="false" MasterPageFile="~/MasterPages/...

You can also access this programmatically in the page load...

Answer 3

Is a weird bug that can be workedaround if you remove the spaces in the title tag like:

<title><asp:ContentPlaceHolder id="title" runat="server"></asp:ContentPlaceHolder></title>

Tested on Sharepoint 2010

Answer 4

Rather than change your server side code, why not just fix it in JS:

$(function(){
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    if (!(prm)) return;
    document.orginalTitle=document.title;
    prm.add_endRequest(function(s, e){
        if (document.title.replace(/\s/g,"").length==0)
            document.title=document.orginalTitle;
        });
});

Answer 5

You could put the Page title in Viewstate and then just grab the string in the button postback Click event and assign it to Page.Title

    public string MyPageTitle
    {
        get
        {
            return (string)ViewState["MyPageTitle"];
        }
        set
        {
            ViewState["MyPageTitle"] = value;
        }
    }

On Page load assign: MyPageTitle = "My Cool Web Page Title"; Then in button click event:

protected void MyLinkButton_Click(object sender, EventArgs e)
    {

       Page.Title = MyPageTitle;

    }

Answer 6

It happens when you set the title progammatically and only when is not PostBack. Just rewrite save/load postback methods to hold the title in the viewstate bag.

    protected override void LoadViewState(object savedState)
    {
        object[] allStates = (object[])savedState;
        if (allStates[0] != null)
            base.LoadViewState(allStates[0]);
        if (allStates[1] != null)
            Page.Title = (string)allStates[1];
    }

    protected override object SaveViewState()
    {
        object[] allStates = new object[2];
        object baseState = base.SaveViewState();
        string pageTitle = Page.Title;
        allStates[0] = baseState;
        allStates[1] = pageTitle;
        return allStates;
    }