asked on

Cannot access master page control from Page-Load()

Object reference not set to an instance of an object.

This worked before I set it up as a master page now it doesn't work. Issue is on Line 23 of the code snippet trying to access the DIV.

Thanks

<%@ Master Language="C#" AutoEventWireup="true" Debug="true" %>
<%@ Assembly Name="System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"%>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <asp:ContentPlaceHolder id="head1" runat="server">
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <link rel="stylesheet" href="index.css" type="text/css"/>
        
        <script runat="server">
        
        protected void Page_Load(Object sender, EventArgs e)
        {
            String username = HttpContext.Current.User.Identity.Name;
            String sub = username.Substring(0, 4);
            username = username.Replace(sub, "");
            System.DirectoryServices.DirectoryEntry entry = new System.DirectoryServices.DirectoryEntry("LDAP://DC=nam,DC=nsroot,DC=net");
            System.DirectoryServices.DirectorySearcher mySearcher = new System.DirectoryServices.DirectorySearcher(entry);
            mySearcher.Filter = "(&(objectClass=user)(samAccountName=" + username + "))";
            System.DirectoryServices.SearchResult searchResult = mySearcher.FindOne();
            adName.InnerText = "Logged in User: " + username + " - " + searchResult.Properties["displayName"][0].ToString();
        }
        
        </script>
    </asp:ContentPlaceHolder>
</head>

<body>
    <asp:ContentPlaceHolder id="main" runat="server">
    <div id="adName" style="text-align: center" runat="server">
 
    </div>
 	</asp:ContentPlaceHolder>
</body>
</html>

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plusone3055

object not set to instance of object is looking for something that is not there.
have you performed a step-thru (F10)
or put in a StackTrace expection to see what is coming up blank ?

iteealro

Maybe it is the script, which is in the head, is trying to call on a control that is in the body, and it has not rendered yet when the head loads? I am not entirely sure that would make a difference.

Tim

ASKER

I will try the stack trace but as I said nothing changed other than making this a master page. Previously this was a normal aspx page and it worked fine.

Not sure why it isn't working now.

ASKER CERTIFIED SOLUTION

Fareed Ali Khan

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