I have two membership providers listed in my web.config, one for SQL
and the other for AD. How do I switch between them at run-time so
that my login page can validate against either source?

You will have to explicitly name the provider name:

Membership.Providers[providerName].Method();
Example (Update User):

//Default
Membership.UpdateUser(name);

//Explicit
Membership.Providers[providerName].UpdateUser(user.Membershi pUser);



--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

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"FerrisUML" <dmcquilken [at] gmail.com> wrote in message
news:11d3a211-01b2-417e-bf9d-4904e6be6e09 [at] f36g2000hsa.google groups.com...
>I have two membership providers listed in my web.config, one for SQL
> and the other for AD. How do I switch between them at run-time so
> that my login page can validate against either source?