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
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.