Sort a ObservableCollection of Doubles

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C#

sorting

Hello,

I'm working on a project which parse colomn from a csv file.

I store my datas like that :

csv file :

A1 ; A2 ; A3 ; A4;

B1 ; B2 ; B3 ; B4;

.. ; .. ; .. ; .. ;

My class :

public class Restaurant
   {
       public double X1 { get; set; }
       public double X2{ get; set; }
       public double X3{ get; set; }
       public double X4{ get; set; }
   }

public class ORestaurant
   {
       public ObservableCollection<Restaurant> OCollection_Restaurant { get; set;
   }

After parsing, OCollection_Restaurant contains a lot of "restaurants".

I would like to sort them by a specific column ( so a specific attribute of restaurants)

I tried with this :

public class ligne : IComparable<ligne>
    {
        public double nresto;
        public double Int_row;
        public ligne(double num_resto, double my_row)
        {
            nresto = num_resto;
            Int_row = my_row;
        }
        public double CompareTo(ligne other)
        {
            return nresto.CompareTo(other.nresto);
        }
    }

It works fine with Ints but not with Doubles.

I would like to do the same think.

Can you help me please?

Thanks !