IComparable Interface
Assembly: mscorlib (in mscorlib.dll)
This interface is implemented by types whose values can be ordered; for example, the numeric and string classes.
A value type or class implements the CompareTo method to create a type-specific comparison method suitable for purposes such as sorting.
The following code sample illustrates the implementation of IComparable and the requisite CompareTo method.
Public Class Temperature Implements IComparable ' The value holder Protected m_value As Double Public Overloads Function CompareTo(ByVal obj As Object) As Integer _ Implements IComparable.CompareTo If TypeOf obj Is Temperature Then Dim temp As Temperature = CType(obj, Temperature) Return m_value.CompareTo(temp.m_value) End If Throw New ArgumentException("object is not a Temperature") End Function Public Property Value() As Double Get Return m_value End Get Set(ByVal Value As Double) m_value = Value End Set End Property Public Property Celsius() As Double Get Return (m_value - 32) / 1.8 End Get Set(ByVal Value As Double) m_value = (Value * 1.8) + 32 End Set End Property End Class
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.