Add the following referances to your project

System.Web
Microsoft.SharePoint.portal
Microsoft.SharePoint
Microsoft.Office.Server
Microsoft.Office.Server.UserProfile

c# code(here site url is the url of the central admin site)

using (SPSite site = new SPSite(“http://sp2010unv:5000/”))
{
//ServerContext con = ServerContext.GetContext(site);
SPServiceContext context = SPServiceContext.GetContext(site);
UserProfileManager profileManager = new UserProfileManager(context);

// get the properties
// ProfileSubtypePropertyManager pc = ProfileSubtype;
//serProfileManager profileManager = new UserProfileManager(context);
UserProfileConfigManager manager = new UserProfileConfigManager(context);
PropertyCollection pc = manager.GetProperties();
// PropertyCollection pc = profileManager.Properties;
pc.SetDisplayOrderByPropertyName(“UserCategory”, 1);
pc.CommitDisplayOrder();

//profileManager.CreateUserProfile(sAccount);

//to set prop values on user profile
//UserProfile u = profileManager.GetUserProfile(“Ankur”);
//string sPropName = “honorfic”;
//u[sPropName] = “male”;
//u.Commit();

Console.WriteLine(“Sucess”);
Console.ReadLine();

}