Have a look at the sample below, Is there a simpler way of achieving this ?
I needed the results
1 vp
2 x
3 y
Rest should be ignored
public class customer
{
public int id;
public string name;
public static IEnumerable<customer> getDistinct()
{
List<customer> cust = new List<customer>();
cust.Add(new customer() { id = 1, name = "vp" });
cust.Add(new customer() { id = 2, name = "x" });
cust.Add(new customer() { id = 3, name = "y" });
cust.Add(new customer() { id = 1, name = "vp" });
cust.Add(new customer() { id = 1, name = "vfp" });
cust.Add(new customer() { id = 1, name = "vp" });
cust.Add(new customer() { id = 1, name = "vpd" });
cust.Add(new customer() { id = 1, name = "vsp" });
cust.Add(new customer() { id = 1, name = "vfrp" });
IEnumerable<customer> newcust = cust.Distinct<customer>(new xcomp()) ;
return newcust;
}
public class xcomp : IEqualityComparer<customer >
{
#region IEqualityComparer<customer> Members
bool IEqualityComparer<customer>.Equals(customer x, customer y)
{
return x.id == y.id;
}
int IEqualityComparer<customer>.GetHashCode(customer obj)
{
return obj.id.GetHashCode();
}
#endregion
}
}
