[Mono-bugs] [Bug 579837] New: System.Configuration.Save() method throws an exception when trying to add an authorization section to an existing Web.config

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http://bugzilla.novell.com/show_bug.cgi?id=579837

http://bugzilla.novell.com/show_bug.cgi?id=579837#c0


           Summary: System.Configuration.Save() method throws an exception
                    when trying to add an authorization section to an
                    existing Web.config
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.6.x
          Platform: 32bit
        OS/Version: openSUSE 11.2
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: System
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: test051102 at hotmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.7)
Gecko/20091221 Firefox/3.5.7 (.NET CLR 3.5.30729)

System.Configuration.Save() method throws a
System.Configuration.ConfigurationErrorsException exception when trying to add
an authorization section to an existing Web.config.

Of course I did take care that XSP2 has all the necessary rights to write to
the Web.config file.

Reproducible: Always

Steps to Reproduce:
1. Create a simple Web Application using Visual Studio 2008
2. Enter the following code to you the Page_Load() method in Default.aspx.cs
Configuration config = WebConfigurationManager.OpenWebConfiguration("~/");
AuthorizationSection auth =
(AuthorizationSection)config.GetSection("system.web/authorization");
AuthorizationRule rule=new AuthorizationRule(AuthorizationRuleAction.Allow);
rule.Users.Add("me");
auth.Rules.Add(rule);
config.Save();
Actual Results:  
The last line will throw an exception but Web.config is written anyway.
Howeverm the resulting file does not contain the new authorization section.

Expected Results:  
Under Windows XP / IIS the file Web.config is exactly the same as before but it
includes an authorization section. No exception will be thrown.

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