using CMS.SiteProvider;

// Create UserInfo

UserInfo user = new UserInfo();

// Set some properties

user.UserName = "Alice";

user.FirstName = "Alice";

user.LastName = "Cooper";

user.FullName = "Alice Cooper";

user.Email = "alice.cooper@domain.com";

user.IsEditor = true;

user.PreferredCultureCode = "en-us";

// Create new user

CMS.SiteProvider.UserInfoProvider.SetUserInfo(user);

using CMS.SiteProvider;

// Get UserInfo of the specified name

UserInfo user = CMS.SiteProvider.UserInfoProvider.GetUserInfo("Alice");

if (user != null)

{

  // Change some values

  user.Enabled = false;

  // Update the UserInfo

  CMS.SiteProvider.UserInfoProvider.SetUserInfo(user);

}

CMS.SiteProvider.UserInfoProvider.DeleteUser("Alice");

using CMS.SiteProvider;

// Get UserInfo of the specified name

UserInfo user = CMS.SiteProvider.UserInfoProvider.GetUserInfo("Alice");

if (user != null)

{

  // Get table with user's sites

  DataTable table = CMS.SiteProvider.UserInfoProvider.GetUserSites(user.UserID);

  if (table != null)

  {

    // Process table ...

  }

}

// Use UserName and SiteName to add user to site

CMS.SiteProvider.UserInfoProvider.AddUserToSite("Alice", CMS.CMSHelper.CMSContext.CurrentSite.SiteName);

// User UserName and SiteName to remove user from site

CMS.SiteProvider.UserInfoProvider.RemoveUserFromSite("Alice", CMS.CMSHelper.CMSContext.CurrentSite.SiteName);