You need to perform a login against the Membership API but specify the Umbraco backoffice provider name as the one to login against. I don't know what would happen if you try and use 2 ASP.NET membership providers at the one time though.
You might be able to write 1 membership provider which you can use as the type for both that has some way of telling if someone is a front-end user or a all-round user
Umbraco and Single Sign On
I have an Umbraco 4.6 site that authenticate users with a custom membership provider.
How can i give some of the members authenticated with my custom membership provider access to the Umbraco UI without login again?
/Jonas
You need to perform a login against the Membership API but specify the Umbraco backoffice provider name as the one to login against. I don't know what would happen if you try and use 2 ASP.NET membership providers at the one time though.
You might be able to write 1 membership provider which you can use as the type for both that has some way of telling if someone is a front-end user or a all-round user
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