private SPUserCollection GetSelectUser()
{
SPUserCollection users = null;
if (userEditor.IsValid)
{
string[] strLoginNames = new string[userEditor.Entities.Count];
for(int nA = 0; nA < userEditor.Entities.Count; nA++)
{
strLoginNames[nA] = ((PickerEntity)userEditor.Entities[nA]).Key;
}
users = SPContext.Current.Web.SiteUsers.GetCollection(strLoginNames);
if (users.Count == 0 )
{
users = null;
}
}
return users;
}