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2013-10-03T12:16:04.263
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I am giving a solution in C# but converting it into VB.NET should not be a problem for you. Also I am assuming that the number of objects present in the List(of object) is always 3 and in the order of type int, string, int. The following is my solution to your problem. <ol> <li>Create a new class say "MyList" which inherits from List(of object)</li> <li>Override Equals method in "MyList" class and in that method check if the passed list is same as the current list by checking each element</li> <li>Create the original dictionary as key = "MyList", value = int</li> <li>Create a new dictionary as key = "MyList", value = List(of int)</li> <li>Create a method which will call the overriden equals method and adds a new key/value if returned false and adds the value to that key if returned true</li> </ol> The following is the entire code <pre><code> Dictionary<MyList, List<int>> newOtherDict; private void button1_Click(object sender, EventArgs e) { //Dummy data for testing Dictionary<MyList, int> myDict = new Dictionary<MyList, int>(); myDict.Add(new MyList() {1, "SomeString", 3 }, 1); myDict.Add(new MyList() { 1, "SomeOtherString", 3 }, 12); myDict.Add(new MyList() { 1, "SomeString", 3 }, 123); //This dictionary will contain the consolidated values newOtherDict = new Dictionary<MyList, List<int>>(); for (int i = 0; i < myDict.Count; i++) { AddOrAppendToNewDict(myDict.ElementAt(i)); } } private void AddOrAppendToNewDict(KeyValuePair<MyList, int> keyValue) { var foundPair = newOtherDict.Where(x => x.Key.Equals(keyValue.Key)); if (foundPair.Count() == 0) { newOtherDict.Add(keyValue.Key, new List<int>() { keyValue.Value }); } else { foundPair.First().Value.Add(keyValue.Value); } } class MyList : List<object> { public override bool Equals(object obj) { List<object> toCompareClass = obj as List<object>; if (Convert.ToInt32(this[0]) == Convert.ToInt32(toCompareClass[0]) && Convert.ToInt32(this[2]) == Convert.ToInt32(toCompareClass[2]) && this[1].ToString() == toCompareClass[1].ToString()) return true; return false; } } </code></pre> I hope this solves your problem. Regards, Samar
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1. USsamar
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