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I am stuck with this error and found a work around and the solutions works for me, but i i would like to know is it the best way to fix the issue and i want to make sure that it wont affect any other pages badly. Hope the experts will help. If this was the best solution then many of you can save your heads.
This error occurs when a code block is placed in the MasterPage. Place the code block in a placeholder to resolve the issue.When adding AJAX extenders to your Web page, it will attempt to register scripts in the head. If code blocks are present in the MasterPage, an error might occur.
To resolve this issue, simply move the code block into a placeholder in the head of your MasterPage, like so:
<head id="Head1" runat="server">
<title>Untitled Page</title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
<asp:ContentPlaceHolder ID="myPlaceholder" runat="server">
<script language="javascript" type="text/javascript" src="<%= Page.ResolveClientURL("~/javascript/global.js")%>"></script>
</asp:ContentPlaceHolder>
<asp:ContentPlaceHolder ID="head" runat="server"></asp:ContentPlaceHolder>
</head>
ContentPlaceHolder requires a master page, so you can replace that tag with some other element that can be ran at the server in case your page does not have a master page and you cannot get rid of the
The error is logical you can not confuse the rendered controls after they rendered by using the
<%= %>One way to solve this issue is to use a literal control, and render the script line on code behind.
and on code behind. Check for null because if you change the placeholder the literal is null. Also set EnableViewState=false because you set it on every Page_Load and you do not wish to save it to viewstate.