I have a custom PeoplePicker which has SelectionSet = "User,SecGroup".

I want to add all entities within this PeoplePicker (which can be a SharePoint user, AD group/user) into a proper SPGroup.

How do I know that an entity is a SharePoint User or a AD user/group? How do I add set to the SPGroup?

  • If you want we can push this over to the SharePoint SE site, you might get a better response there. If you'd like us to do that then flag a mod to action this. Also it would be helpful to post a snippet of code which would go a long way to helping others understand your problem. – Kev Nov 28 '11 at 18:01

Where is your code running? Web part, application page etc?

Regardless, you can probably do something similar to the following

    //first get the SPGroup you want to add users to
    SPGroup addToGroup = SPContext.Current.Web.AssociatedVisitorGroup;

    //now loop through each entity in your user picker
    foreach (PickerEntity entity in userPicker.ResolvedEntities)
        //entity key will be the username
        string userName = entity.Key;

        //create a SPUser in the web
        SPUser user = SPContext.Current.Web.EnsureUser(userName);

        if (user.IsDomainGroup)
            //user is an ad group
            //user is an ad user

        //add the user to the group
catch (UnauthorizedAccessException uaex)
    //handle any errors that occur when not enough rights to manage users
catch (Exception)
    //handle other errors

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