استفاده از تابع this

 public class Emploee
    {
        public Int64 Emp_Number { get; set; }

        public string Emp_Name { get; set; }

        public string Emp_Family { get; set; }

        public DateTime Emp_Birthdate { get; set; }

        public string Emp_Address { get; set; }

        public bool Emp_Gender { get; set; }

        public Emploee(Int64 emp_Number)
        {
            this.Emp_Number = emp_Number;
        }

        public Emploee(Int64 emp_Number, string emp_Name, string emp_Family)
        {
            this.Emp_Number = emp_Number;
            this.Emp_Name = emp_Name;
            this.Emp_Family = emp_Family;
        }

        public Emploee(Int64 emp_Number, string emp_Name, string emp_Family,
	 	DateTime emp_Birthdate, string emp_Address, bool emp_Gender)
        {
            this.Emp_Number = emp_Number;
            this.Emp_Name = emp_Name;
            this.Emp_Family = emp_Family;
            this.Emp_Birthdate = emp_Birthdate;
            this.Emp_Address = emp_Address;
            this.Emp_Gender = emp_Gender;
        }

    } 

 public class Emploee
    {
        public Int64 Emp_Number { get; set; }

        public string Emp_Name { get; set; }

        public string Emp_Family { get; set; }

        public DateTime Emp_Birthdate { get; set; }

        public string Emp_Address { get; set; }

        public bool Emp_Gender { get; set; }

        public Emploee(Int64 emp_Number)
        {
            this.Emp_Number = emp_Number;
            /*
            * وجود سایر دستورات مربوطه
            */
        }

        public Emploee(Int64 emp_Number, string emp_Name, string emp_Family)
            :this(emp_Number)
        {
            this.Emp_Name = emp_Name;
            this.Emp_Family = emp_Family;
            /*
             * وجود سایر دستورات مربوطه
             */
        }

        public Emploee(Int64 emp_Number, string emp_Name, string emp_Family,
		DateTime emp_Birthdate, string emp_Address, bool emp_Gender)
            : this(emp_Number, emp_Name, emp_Family)
        {
            this.Emp_Birthdate = emp_Birthdate;
            this.Emp_Address = emp_Address;
            this.Emp_Gender = emp_Gender;
            /*
            * وجود سایر دستورات مربوطه
            */
        }

    }