customize the order of displaying elements while serialization using C# -

i have class defines elements below in c# item class

public class item {             public string shortdesc {get;set;}      [xmlarrayitem(elementname="category")]     public list<string> categories = new list<string>();     public string subtype{get;set;} } 

in code behind have code

item() itm = new item(); itm.subtype = "applications"; itm.categories.add("category1"); itm.categories.add("category2"); itm.categories.add("category3"); itm.shortdesc="short description"; 

i getting xml output when serialize object

xml:

<subtype>applications</subtype> <shortdesc>short description</shortdesc> <categories>       <category>category1</category>       <category>category2</category>       <category>category3</category> </categories> 

but want output in order

<subtype>applications</subtype> <categories>       <category>category1</category>       <category>category2</category>       <category>category3</category> </categories> <shortdesc>short description</shortdesc> 

how possible display way tried order= takes xmlelement

public class item {     [xmlelement("shortdesc", order=2)]     public string shortdesc { get; set; }      private readonly list<string> categories = new list<string>();     [xmlarray("categories", order = 3), xmlarrayitem("category")]     public list<string> categories { { return categories; } }      [xmlelement("sub-type", order = 1)]     public string subtype { get; set; } } 

note explicit [xmlarray], allows specify order=. moved list property (which norm).