Configuring ActiveDirectoryMembershipProvider




I am new to ASP.NET. I am developing a web application using ASP.NET and I
want to use ActiveDirectoryMemberhipProvider in my form authentication. In
this provider, I need to specify the <connectionstring> and <membership>
information to be hardcoded with the domain name, user name and password in
the Web.config file. But in the production, my application can be installed
in any domain. So, is it possible to configure
ActiveDirectoryMembershipProvider at runtime?. If any tutorial/sample
provided is highly appreciated.

Thanks in advance.

Allen Chen [MSFT]


My name is Allen Chen. It's my pleasure to work with you on this issue.

As to this problem, the general way we'll do is to edit the settings in the
web.config after publishing the site. It's easy to do so and we only have
to do that once.

If you want to create UI for the administrator to edit the web.config file
you can try the following code:

Configuration config =
//Edit ConnectionStringsSection
ConnectionStringsSection css =
if (css != null &&
!css.SectionInformation.IsProtected) {
//Here ADConnectionString is the connection string. It
may vary in your case.

css.ConnectionStrings["ADConnectionString"].ConnectionString =
@"LDAP://your connection string";
//Edit MembershipSection:
MembershipSection section =
if (section != null &&
//Here section.Providers[1] is
ActiveDirectoryMembershipProvider. It may vary in your case.
section.Providers[1].Parameters["attributeMapUsername"] =


If you have additional questions please feel free to ask.

Allen Chen
Microsoft Online Support

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Allen Chen [MSFT]


Have you solved this issue?

Allen Chen
Microsoft Online Community Support

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