JQuery not working - asp.net

Question

I am trying to implement JQuery in my web page but i am not been able to implement it successfully.
I have a master page
where i added one script for menu bar that is already using jquery hosted by Google
This is coded in master page itself
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
Now i want to implement a Jquery to set the css visibility property to true or false.
into my content page of same master page.
<script type="text/javascript">
$(document).ready(function(){
$("#lnkAddMore").click(function(){
alert();
}
);
});
</script>
This html control is under my UpdatePanel.
I dont know why it is not working ?
I am using this control under UpdatePanel.
<input type="button" id="lnkAddMore" value="Add More" />
I tried to use it outside my update
panel it is running successfully but
not in UpdatePanel
I think there is a problem using it with an UpdatePanel
HERE IS MY PAGE SOURCE
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
<link href="../../Css/Domain.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
$(document).ready(function(){
$("#lnkAddMore").click(function(){alert();$('#h').hide(100);});
$('#h').show(100);
});
</script>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div id="divDomain" runat="server">
<asp:gridview/>
<div style="text-align:right;">
<input type="button" id="lnkAddMore" value="Add More" />
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>

Answer 1

Do you really have nested <script> tags or was it a typo?
<script type="text/javascript">
<script type="text/javascript">
If that's not a typo, then that's probably the issue.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#ddmenu > li').bind('mouseover', ddmenu_open)
$('#ddmenu > li').bind('mouseout', ddmenu_timer)
});
$(document).bind('click', ddmenu_close); // do you really want to close on any click?
</script>

Answer 2

I have used two approaches with jQuery and UpdatePanels.
The first is this:
jQuery $(document).ready and UpdatePanels?
The other approach I found on Rick Strahl's blog (http://www.west-wind.com/Weblog/posts/154797.aspx) Which is to do something like this in the code behind:
ScriptManager.RegisterClientScriptBlock(this, typeof(Page), "alertScript",
#" $(document).ready(function(){
$("#lnkAddMore").click(function(){
alert();
}
);
});", true);
Check this out for another example: Problem with ScriptManager.RegisterClientScriptBlock and jQuery in Internet Explorer 8
Also have a look at jQuery's live() event subscriber.

Answer 3

Check that the ID of your button isn't actually getting changed to something like
ctl00_ContentPlaceHolder1_lnkAddMore
since it's residing in a content placeholder for the master page.
If it is, you'd have to adjust your JQuery.

Answer 4

When you're loading code in under an UpdatePanel, try not wrapping it in $(document).ready();. Ready isn't fired on document for AJAX events.