CSharpTest.Net
Count Property
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CSharpTest.Net.Library Assembly > CSharpTest.Net.Collections Namespace > LListNode.LList<TNode> Class : Count Property

Glossary Item Box

Returns the number of items in the list

Syntax

Visual Basic (Declaration) 
Public ReadOnly Property Count As Integer
C# 
public int Count {get;}

Example

Library/Library.Test/TestLinkList.cs

C#Copy Code
LListNode<string> empty = new LListNode<string>();
LListNode<string> valueA = new LListNode<string>("A");
LListNode<string> valueB = new LListNode<string>("B");
LListNode<string>.LList list = new LListNode<string>.LList();

list.AddFirst(empty);
Assert.AreEqual(1, list.Count);
Assert.AreEqual(empty, list.First);
Assert.AreEqual(empty, list.Last);
Assert.IsNull(empty.Next);
Assert.IsNull(empty.Previous);

list.AddLast(valueB);
Assert.AreEqual(2, list.Count);
Assert.AreEqual(empty, list.First);
Assert.AreEqual(valueB, list.Last);

Assert.AreEqual(valueB, empty.Next);
Assert.IsNull(empty.Previous);

Assert.AreEqual(empty, valueB.Previous);
Assert.IsNull(valueB.Next);

list.AddFirst(valueA);
Assert.AreEqual(3, list.Count);
Assert.AreEqual(valueA, list.First);
Assert.AreEqual(valueB, list.Last);

Assert.AreEqual(valueB, empty.Next);
Assert.AreEqual(valueA, empty.Previous);

Assert.AreEqual(empty, valueA.Next);
Assert.IsNull(valueA.Previous);

Assert.AreEqual(empty, valueB.Previous);
Assert.IsNull(valueB.Next);

list.Remove(empty);
Assert.AreEqual(2, list.Count);
Assert.AreEqual(valueA, list.First);
Assert.AreEqual(valueB, list.Last);

Assert.AreEqual(valueB, valueA.Next);
Assert.IsNull(valueA.Previous);

Assert.AreEqual(valueA, valueB.Previous);
Assert.IsNull(valueB.Next);
VB.NETCopy Code
Dim empty As New LListNode(Of String)()
Dim valueA As New LListNode(Of String)("A")
Dim valueB As New LListNode(Of String)("B")
Dim list As New LListNode(Of String).LList()

list.AddFirst(empty)
Assert.AreEqual(1, list.Count)
Assert.AreEqual(empty, list.First)
Assert.AreEqual(empty, list.Last)
Assert.IsNull(empty.[Next])
Assert.IsNull(empty.Previous)

list.AddLast(valueB)
Assert.AreEqual(2, list.Count)
Assert.AreEqual(empty, list.First)
Assert.AreEqual(valueB, list.Last)

Assert.AreEqual(valueB, empty.[Next])
Assert.IsNull(empty.Previous)

Assert.AreEqual(empty, valueB.Previous)
Assert.IsNull(valueB.[Next])

list.AddFirst(valueA)
Assert.AreEqual(3, list.Count)
Assert.AreEqual(valueA, list.First)
Assert.AreEqual(valueB, list.Last)

Assert.AreEqual(valueB, empty.[Next])
Assert.AreEqual(valueA, empty.Previous)

Assert.AreEqual(empty, valueA.[Next])
Assert.IsNull(valueA.Previous)

Assert.AreEqual(empty, valueB.Previous)
Assert.IsNull(valueB.[Next])

list.Remove(empty)
Assert.AreEqual(2, list.Count)
Assert.AreEqual(valueA, list.First)
Assert.AreEqual(valueB, list.Last)

Assert.AreEqual(valueB, valueA.[Next])
Assert.IsNull(valueA.Previous)

Assert.AreEqual(valueA, valueB.Previous)
Assert.IsNull(valueB.[Next])

Requirements

Target Platforms: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7

See Also

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