Question

In this post Other Post I used the programmers suggestion of List<KeyValuePair<string, string>> IdentityLines = new List<KeyValuePair<string, string>>(); to collect multiple string values within certain files of a directory. I now want to remove the duplicate values from that list. Any idea how I can do that in C#? Thanks

Answer 1

static List<T> RemoveDuplicates<T>(List<T> inputList) 
{ 
    Dictionary<T, int> uniqueStore = new Dictionary<T, int>(); 
    List<T> finalList = new List<T>(); 

    foreach (string currValue in inputList) 
    { 
        if (!uniqueStore.ContainsKey(currValue)) 
        { 
            uniqueStore.Add(currValue, 0); 
            finalList.Add(currValue); 
        } 
    } 
    return finalList; 
} 

http://www.kirupa.com/net/removingDuplicates.htm

If you want to return an IEnumerable instead, change your return type to IEnumerable<T> and yield return currValue instead of adding it to the final list.