Using Sort() method of a LIST

You can also have a look at the sort methods as documented here.

try this code

public class TMain
    {
        int iValue=0;
        string sValue = "";
        public int param1
        {
            get { return iValue; }
            set { iValue = value; }
        }
        public string param2
        {
            get { return sValue; }
            set { sValue = value; }
        }
    }

private void main()
{
TMain X = new TMain();
X.param1 = 10;
X.param2 = "param1";
TMain X1 = new TMain();
X1.param1 = 1;
X1.param2 = "param2";
List<TMain> Tlist = new List<TMain>();
Tlist.Add(X);
Tlist.Add(X1);
Tlist.Sort(TCompare);

}
private int TCompare(TMain x, TMain y)
{
if (x.param1 > y.param1)
return x.param1;
else
return y.param1;
}