Order by a field (int). If the field it is not int?

Question

I have a problem with LINQ (in C#). I need to order a list of records by a field, which should be int, but sometimes not :

from MyObject obj in new          


        

Answer 1

Try by maming use of TryParse

int myInt;                
from obj in MYobjects
         where obj.Visibile=="1" 
         orderby  (int.TryParse(Str, out myInt) ?  myInt: 0 )
         select obj;

OR

MYobjects.OrderBy(r => Number(r.str);
 //private function 
int Number(string str) 
{ 
        int result_ignored;
        if (int.TryParse(str,out result_ignored))
           return result_ignored;

        else 
           return 0;
 }