# IComparer<T>.Compare(T, T) メソッド

## 定義

2 つのオブジェクトを比較して、一方が他方より小さいか、同じか、または大きいかを示す値を返します。Compares two objects and returns a value indicating whether one is less than, equal to, or greater than the other.

``````public:
int Compare(T x, T y);``````
``public int Compare (T x, T y);``
``abstract member Compare : 'T * 'T -> int``
``Public Function Compare (x As T, y As T) As Integer``

x
T

y
T

#### 戻り値

Int32

`x``y` の相対値を示す符号付き整数。次の表を参照してください。A signed integer that indicates the relative values of `x` and `y`, as shown in the following table.

Value 意味Meaning
ゼロより小さいLess than zero `x``y` より小さい値です。`x` is less than `y`.
ゼロZero `x``y` は等しい。`x` equals `y`.
ゼロより大きいGreater than zero `x``y` より大きくなっています。`x` is greater than `y`.

## 例

``````// This class is not demonstrated in the Main method
// and is provided only to show how to implement
// the interface. It is recommended to derive
// from Comparer<T> instead of implementing IComparer<T>.
public class BoxComp : IComparer<Box>
{
// Compares by Height, Length, and Width.
public int Compare(Box x, Box y)
{
if (x.Height.CompareTo(y.Height) != 0)
{
return x.Height.CompareTo(y.Height);
}
else if (x.Length.CompareTo(y.Length) != 0)
{
return x.Length.CompareTo(y.Length);
}
else if (x.Width.CompareTo(y.Width) != 0)
{
return x.Width.CompareTo(y.Width);
}
else
{
return 0;
}
}
}
``````
``````' This class is not demonstrated in the Main method
' and is provided only to show how to implement
' the interface. It is recommended to derive
' from Comparer<T> instead of implementing IComparer<T>.
Public Class BoxComp
Implements IComparer(Of Box)
' Compares by Height, Length, and Width.
Public Function Compare(ByVal x As Box, ByVal y As Box) As Integer Implements _
IComparer(Of Box).Compare
If x.Height.CompareTo(y.Height) <> 0 Then
Return x.Height.CompareTo(y.Height)
ElseIf x.Length.CompareTo(y.Length) <> 0 Then
Return x.Length.CompareTo(y.Length)
ElseIf x.Width.CompareTo(y.Width) <> 0 Then
Return x.Width.CompareTo(y.Width)
Else
Return 0
End If
End Function
End Class
``````

## 注釈

`T`型に対してカスタマイズされた並べ替え順序の比較を提供するには、このメソッドを実装します。Implement this method to provide a customized sort order comparison for type `T`.