Cannot convert type 'string' to 'System.Collections.ArrayList

Question

Here is my code

   private static ArrayList GetFirstObjectFromDictionary(Dictionary<string, string> dictionary)
    {
        foreach (ArrayList arr in dictionary.Values) //error 
        {
            return arr;
        }
        return null;
    }

It causes error "Cannot convert type 'string' to 'System.Collections.ArrayList'".

Answer 1

You can use KeyValuePair for reach dictionary's items.

private static ArrayList GetFirstObjectFromHashTable(Dictionary<string, string> dictionary)
{
    ArrayList aLst = new ArrayList();

    foreach (KeyValuePair<string, string> pair in dictionary)
    {
        aLst.Add(pair.Value);
    }

    return aLst;
}

This page might help you to understand foreach using with dictionaries.