Add Range If Not In List - CSharp System.Collections.Generic

CSharp examples for System.Collections.Generic:IList

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Description

Add Range If Not In List

Demo Code

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using System.Collections.Specialized;
using System.Collections.Generic;
using System.Collections;
using System;//w  w  w .  ja  va 2s .  co m

public class Main{
        //--------------------------------------------------------------------------
    static public void AddRangeIfNotInList<T>(IList<T> list, IList<T> appendix, Func<IList<T>, T, bool> containsFunc = null)
    {
      if (containsFunc == null)
        containsFunc = (l, i) => l.Contains(i);
      foreach (var item in appendix)
      {
        if (!containsFunc(list, item))
          list.Add(item);
      }
    }
}

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