Calculate years in a POCO Calculated Property

Question

I'm assuming I'm pretty close. I have a value StartedAgent that will contain a specific date entered by the user. Lets say they entered "1/1/1985" I then want to create a calculated property that I can use to display how many years since this agent first started working in Real Estate. Below is my class. I have tried to take a stab at it, but I'm coming up short. I'm using MVC 5, EF 6 & .Net 4.5 in the flavor of C#.

    namespace OrlandoAppraiser.Models
    {
        public class Appraiser
        {
            public int AgentID { get; set; }
            public string Name { get; set; }
            public string LicenseNum { get; set; }
            public DateTime StartedAgent { get; set; }

            public string YearsAsAgent
            {
                get { return (Math.Floor((DateTime.Now - StartedRealEstate).TotalDays / 365.25D)); }
            }
        }
    }

I have looked at some different answers, but I'm having trouble finding a way of doing this simple inside a calculated property. I know it shouldn't be that much different, but I'm getting errors with my code.

Answer 1

This is a pretty simplistic approach. Make sure you call ToString() if the property is a string.

public string YearsAsAgent
{
    get { return (DateTime.Now.Year - StartedRealEstate.Year).ToString(); }
}

Answer 2

This should help. Modified version of this.

DateTime _startedRealEstate = new DateTime(2012, 11, 15);
public DateTime StartedRealEstate { get { return _startedRealEstate; } set { _startedRealEstate = value; } }

public int YearsAsAgent
{
  get
  {
      DateTime zeroTime = new DateTime(1, 1, 1);
      TimeSpan span = DateTime.Now - StartedRealEstate;
      int years = (zeroTime + span).Year - 1;
      return years;
  }
 }


 private void button1_Click_2(object sender, EventArgs e)
 {
      int totalYears = YearsAsAgent;
 }