c# - What is the best way to sort a List of objects with a start value? -

what best way sort list of object start value? list has items:

obj obj b obj c obj d  a.index = 1 b.index = 3 c.index = 2 d.index = 4 start value = 3; 

sorted list must {b,d,a,c}

thanks help.

use orderby , thenby combination. work using system.linq @ top of file.

var source = new list<item>() {     new item { index = 1, value = 'a' },     new item { index = 3, value = 'b' },     new item { index = 2, value = 'c' },     new item { index = 4, value = 'd' }, };  int startvalue = 3;  var sortedlist = source.orderby(i => i.index < startvalue)                        .thenby(i => i.index)                        .tolist();  foreach (var item in sortedlist)     console.writeline(string.format("{0} - {1}", item.value, item.index)); 

item class definition:

class item {     public char value { get; set; }     public int index { get; set; } } 

returns desired output:

b - 3 d - 4 - 1 c - 2