use of unassigned local variable 'p'[Answered] RSS

• • Reply
  samaremad

  Member

  5 Points

  18 Posts

  use of unassigned local variable 'p'

  Feb 21, 2021 11:19 AM|samaremad|LINK

  hi every one 

  can you please check my code and correct the erorr i dont know what is the wrong in it 

   List<Nominee> p;
                      List <votenominee>  d = db1.votenominees.Where(b => b.idvoteR == id).ToList();
                      int o;
                      
                      for (int j = 0; j < d.Count(); j++)
                      {
                          o = d[j].idnomineeR;
                          p = db1.Nominees.Where(b => b.nominee_id == o).ToList();
                      }
                      
                      // var e = p.Count();
                      
                      Nominee v = p[0];
                     for(int i = 1; i < p.Count(); i++)
                      {
                          if (v.num_vote < p[i].num_vote)
                          {
                              v = p[i];
                          }
                      }

  Nominee v = p[0]; the error reffer to p here 

• • Reply
  mgebhard

  All-Star

  53001 Points

  23593 Posts

  Re: use of unassigned local variable 'p'

  Feb 21, 2021 02:29 PM|mgebhard|LINK

  There is a potential that p is never assigned a value due to the conditional statements yet you are using p as if it always has a value.  

  List<Nominee> p = new List<Nominee>();

  Please use the "Insert/edit code sample" toolbar option when sharing code in the forum.

• • Reply
  YihuiSun

  Contributor

  2690 Points

  774 Posts

  Re: use of unassigned local variable 'p'

  Feb 22, 2021 02:21 AM|YihuiSun|LINK

  Hi samaremad, 

  If the compiler detects the use of a variable that might not have been initialized, it generates compiler error CS0165:Use of unassigned local variable 'name'.

  You need to initialize this variable p.

  List<Nominee> p=new List<Nominee>();

  The reason why the variable "d" does not have this error is that you assign an initial value to it when you create the variable "d", which is equivalent to already initialized.

  List <votenominee>  d = db1.votenominees.Where(b => b.idvoteR == id).ToList();

  Here are some links, you can click on them to learn more:

  1. Compiler Error CS0165
  2. Fields (C# Programming Guide)

  Best Regards,

  YihuiSun

  .NET forums are moving to a new home on Microsoft Q&A, we encourage you to go to Microsoft Q&A for .NET for posting new questions and get involved today.