Question

I have a string[] array that is split by \r. Each row in the array has title|address in it, but every so often I end up with a duplicate of the address portion of it, which I don’t want.

This:

Title1 | Address1 //[0]
Title2 | Address2 //[1]
Title3 | Address1 //[2]
Title4 | Address3 //[3]

Would become:

Title1 | Address1 //[0]
Title2 | Address2 //[1]
Title4 | Address3 //[2]

The array declaration is as follows: string[] resultsArray = results.Split('\r'); //Title|Address I then later split the row when I grab the individual elements by |.

Usage (extremely simplified):

foreach (string result in resultsArray)
{
    string splitResult[] = result.Split('|');
    title = splitResult[0];
    address = splitResult[1];
}

Answer 1

I’m assuming the question is, how do you prevent duplicate addresses from being entered into the list. Could you use a Dictionary?

Dictionary<string, string> addresses = new Dictionary<string, string>();

foreach(string result in resultsArray)
{
    string splitResult[] = result.Split('|');

    // check to see if address already exists, if it does, skip it.
    if(!addresses.ContainsKey(splitResult[1]))
    {
        addresses.add(splitResult[1], splitResult[0]);
    }
}