using CMS.SiteProvider;

// Create new RoleInfo

RoleInfo role = new RoleInfo();

// Set RoleInfo properties except RoleID

role.RoleName = "DocumentEditor";

role.DisplayName = "Document editor";

role.Description = "some description...";

role.SiteID = CMS.CMSHelper.CMSContext.CurrentSiteID;

// check if the role name is unique in the given site

if (!CMS.SiteProvider.RoleInfoProvider.RoleExists(role.RoleName, CMS.CMSHelper.CMSContext.CurrentSiteName))

{

  // Insert new RoleInfo for current site

  CMS.SiteProvider.RoleInfoProvider.SetRoleInfo(role);

}

else

{

  // Role with the same name already exists in specified site

}

using CMS.SiteProvider;

// Get role of specified name from current site

RoleInfo role = CMS.SiteProvider.RoleInfoProvider.GetRoleInfo("ArticleEditor", CMS.CMSHelper.CMSContext.CurrentSiteName);

if (role != null)

{

  // Make some changes

  role.Description = "Changed description.";

  // Update the role

  CMS.SiteProvider.RoleInfoProvider.SetRoleInfo(role);

}

// Delete the role

CMS.SiteProvider.RoleInfoProvider.DeleteRole("ArticleEditor", CMS.CMSHelper.CMSContext.CurrentSiteName);