helper classes in C#

public static class Helper { public static string UploadFile(HttpPostedFileBase file,string targetDirectory="") { string systemPath = System.Web.Hosting.HostingEnvironment.MapPath("~"); string directoryPath= "/UploadedFiles/"+ targetDirectory+"/" + DateTime.Now.Ticks + "_" + file.FileName; string fileName = systemPath + directoryPath; file.SaveAs(fileName); return directoryPath; } public static string AsDateString(object dateTime) { if (dateTime!=null) { return Convert.ToDateTime(dateTime).ToString("dd-MM-yyyy"); } return string.Empty; } }

// Static list public class Dropdowns { public static List<SelectListItem> Genders { get { List<SelectListItem> _lst = new List<SelectListItem>() { new SelectListItem(){Value="Male",Text="Male"}, new SelectListItem(){ Value="Female",Text="Female"} ,new SelectListItem(){ Value="Other",Text="Other"} }; return _lst; } } }

Generic Class

public class VirtualCrud<T> : IDisposable where T : new() { bool disposed = false; SafeHandle handle = new SafeFileHandle(IntPtr.Zero, true); protected HmsContext db = new HmsContext(); public virtual List<T> SelectAll(out OutParamModel outparam) { var toReturn = new List<T>(); outparam = new OutParamModel(); return toReturn; } public virtual T SelectByID(int ID, out OutParamModel outparam) { var obj = new T(); outparam = new OutParamModel(); return obj; } public virtual T SelectByID(string ID, out OutParamModel outparam) { var obj = new T(); outparam = new OutParamModel(); return obj; } public virtual T Save(T entity, out OutParamModel outparam) { var obj = new T(); outparam = new OutParamModel(); return obj; } //public virtual T Save(T entity) //{ // var obj = new T(); // return obj; //} public virtual T Update(T entity, out OutParamModel outparam) { var obj = new T(); outparam = new OutParamModel(); return obj; } public virtual T Delete(int ID, out OutParamModel outparam) { var obj = new T(); outparam = new OutParamModel(); return obj; } //-- Database connection public void OpenConnection() { var Connection = db.Database.Connection; if (Connection.State == System.Data.ConnectionState.Closed) Connection.Open(); //return Connection; } public void CloseConnection() { var Connection = db.Database.Connection; if (Connection.State == System.Data.ConnectionState.Open) Connection.Close(); //return Connection; } public DbConnection GetDbConnection { get { return db.Database.Connection; } } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } public virtual void Dispose(bool disposing) { if (disposed) return; if (disposing) { handle.Dispose(); } disposed = true; } }