Adds an element with the provided key and value to the
IDictionary.
Syntax
| Visual Basic (Declaration) | |
|---|
Public Overloads Sub Add( _
ByVal key As TKey, _
ByVal value As TValue _
) |
Parameters
- key
- The object to use as the key of the element to add.
- value
- The object to use as the value of the element to add.
Exceptions
Example
Library/Library.Test/TestBTreeDictionary.cs
| C# |  Copy Code |
|---|
BTreeDictionary<int, string> data = new BTreeDictionary<int, string>();
data.Add(1, "a");
data.Add(2, "b");
data.Add(3, "c");
data.Add(4, "d");
data.Add(5, "e");
Assert.AreEqual(1, data.First().Key);
Assert.AreEqual("a", data.First().Value);
data.Remove(1);
Assert.AreEqual(2, data.First().Key);
Assert.AreEqual("b", data.First().Value);
Assert.AreEqual(5, data.Last().Key);
Assert.AreEqual("e", data.Last().Value);
data.Remove(5);
Assert.AreEqual(4, data.Last().Key);
Assert.AreEqual("d", data.Last().Value);
data.Remove(4);
data.Remove(3);
KeyValuePair<int, string> kv;
Assert.IsTrue(data.TryGetLast(out kv));
Assert.IsTrue(data.TryGetFirst(out kv));
data.Remove(2);
Assert.IsFalse(data.TryGetLast(out kv));
Assert.IsFalse(data.TryGetFirst(out kv));
try
{
data.First();
Assert.Fail("Should raise InvalidOperationException");
}
catch (InvalidOperationException)
{
}
try
{
data.Last();
Assert.Fail("Should raise InvalidOperationException");
}
catch (InvalidOperationException)
{
} |
| VB.NET | Copy Code |
|---|
Dim data As New BTreeDictionary(Of Integer, String)()
data.Add(1, "a")
data.Add(2, "b")
data.Add(3, "c")
data.Add(4, "d")
data.Add(5, "e")
Assert.AreEqual(1, data.First().Key)
Assert.AreEqual("a", data.First().Value)
data.Remove(1)
Assert.AreEqual(2, data.First().Key)
Assert.AreEqual("b", data.First().Value)
Assert.AreEqual(5, data.Last().Key)
Assert.AreEqual("e", data.Last().Value)
data.Remove(5)
Assert.AreEqual(4, data.Last().Key)
Assert.AreEqual("d", data.Last().Value)
data.Remove(4)
data.Remove(3)
Dim kv As KeyValuePair(Of Integer, String)
Assert.IsTrue(data.TryGetLast(kv))
Assert.IsTrue(data.TryGetFirst(kv))
data.Remove(2)
Assert.IsFalse(data.TryGetLast(kv))
Assert.IsFalse(data.TryGetFirst(kv))
Try
data.First()
Assert.Fail("Should raise InvalidOperationException")
Catch generatedExceptionName As InvalidOperationException
End Try
Try
data.Last()
Assert.Fail("Should raise InvalidOperationException")
Catch generatedExceptionName As InvalidOperationException
End Try |
Requirements
Target Platforms: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7
See Also
