find if an integer exists in a list of integers

Question

i have this code:

  List apps = getApps();

        List ids;

        List dropdown = apps.ConvertAll(c => new          


        

Answer 1

The way you did is correct. It works fine with that code: x is true. probably you made a mistake somewhere else.

List ints = new List( new[] {1,5,7}); // 1

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List intlist=new List() { 0,2,3,4,1}; // 2

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var i = 5;
var x = ints.Contains(i);   // return true or false