private static void setPerrmissionToListItem(SPListItem listItem, PermissionAssigment pa)
{
List<string> members = new List<string>();
if (pa.Members != null && pa.Members.Count > 0)
{
members.AddRange(pa.Members);
}
if (pa.FieldIds != null && pa.FieldIds.Count > 0)
{
foreach (string fieldId in pa.FieldIds)
{
if (listItem.Fields.ContainFieldId(new Guid(fieldId)) && listItem[new Guid(fieldId)] != null)
{
SPFieldUserValueCollection users = new SPFieldUserValueCollection(listItem.Web, listItem[new Guid(fieldId)].ToString());
foreach (SPFieldUserValue user in users)
{
if (user.User != null)
members.Add(user.LookupId + ";#" + user.User.LoginName);
else
members.Add(user.ToString());
}
}
}
}
listItem.SetPermissions(pa.PermissionLevel, members);
}