Decimal.Equality Operator
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Returns a value indicating whether two instances of Decimal are equal.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Shared Operator = ( _
d1 As Decimal, _
d2 As Decimal _
) As Boolean
public static bool operator ==(
decimal d1,
decimal d2
)
Return Value
Type: System.Boolean
true if d1 and d2 are equal; otherwise, false.
Examples
The following code example compares several Decimal values to a reference Decimal value using the Equality operator.
' Example of the Decimal relational operators.
Module Example
Const dataFmt As String = "{0,-47}{1}"
' Compare Decimal parameters, and display them with the results.
Sub CompareDecimals(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal Left As Decimal, ByVal Right As Decimal, _
ByVal RightText As String)
outputBlock.Text &= vbCrLf
outputBlock.Text &= String.Format(dataFmt, "Right: " & RightText, Right) & vbCrLf
' The op_Equality, op_GreaterThan, op_GreaterThanOrEqual,
' op_Inequality, op_LessThan, and op_LessThanOrEqual operators
' must be explicitly coded in Visual Basic. If binary =, >,
' >=, <>, <, or <= are used, the Compare method is called.
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_Equality( Left, Right )", _
Decimal.op_Equality(Left, Right)) & vbCrLf
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_GreaterThan( Left, Right )", _
Decimal.op_GreaterThan(Left, Right)) & vbCrLf
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_GreaterThanOrEqual( Left, Right )", _
Decimal.op_GreaterThanOrEqual(Left, Right)) & vbCrLf
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_Inequality( Left, Right )", _
Decimal.op_Inequality(Left, Right)) & vbCrLf
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_LessThan( Left, Right )", _
Decimal.op_LessThan(Left, Right)) & vbCrLf
outputBlock.Text &= String.Format(dataFmt, _
"Decimal.op_LessThanOrEqual( Left, Right )", _
Decimal.op_LessThanOrEqual(Left, Right)) & vbCrLf
End Sub
Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
Dim Left As New Decimal(123.456)
outputBlock.Text &= _
"This example of the Decimal relational operators " & _
"generates the " & vbCrLf & "following output. It " & _
"creates several different Decimal values " & vbCrLf & _
"and compares them with the following reference " & _
"value." & vbCrLf & vbCrLf
outputBlock.Text &= String.Format(dataFmt, "Left: Decimal( 123.456 )", Left) & vbCrLf
' Create objects to compare with a 2-hour Decimal.
CompareDecimals(outputBlock, Left, New Decimal(123.456), _
"Decimal( 1.23456E+2 )")
CompareDecimals(outputBlock, Left, New Decimal(123.4567), _
"Decimal( 123.4567 )")
CompareDecimals(outputBlock, Left, New Decimal(123.4553), _
"Decimal( 123.4553 )")
CompareDecimals(outputBlock, Left, New Decimal(123456000, 0, 0, False, 6), _
"Decimal( 123456000, 0, 0, False, 6 )")
End Sub
End Module
' This example of the Decimal relational operators generates the
' following output. It creates several different Decimal values
' and compares them with the following reference value.
'
' Left: Decimal( 123.456 ) 123.456
'
' Right: Decimal( 1.23456E+2 ) 123.456
' Decimal.op_Equality( Left, Right ) True
' Decimal.op_GreaterThan( Left, Right ) False
' Decimal.op_GreaterThanOrEqual( Left, Right ) True
' Decimal.op_Inequality( Left, Right ) False
' Decimal.op_LessThan( Left, Right ) False
' Decimal.op_LessThanOrEqual( Left, Right ) True
'
' Right: Decimal( 123.4567 ) 123.4567
' Decimal.op_Equality( Left, Right ) False
' Decimal.op_GreaterThan( Left, Right ) False
' Decimal.op_GreaterThanOrEqual( Left, Right ) False
' Decimal.op_Inequality( Left, Right ) True
' Decimal.op_LessThan( Left, Right ) True
' Decimal.op_LessThanOrEqual( Left, Right ) True
'
' Right: Decimal( 123.4553 ) 123.4553
' Decimal.op_Equality( Left, Right ) False
' Decimal.op_GreaterThan( Left, Right ) True
' Decimal.op_GreaterThanOrEqual( Left, Right ) True
' Decimal.op_Inequality( Left, Right ) True
' Decimal.op_LessThan( Left, Right ) False
' Decimal.op_LessThanOrEqual( Left, Right ) False
'
' Right: Decimal( 123456000, 0, 0, False, 6 ) 123.456000
' Decimal.op_Equality( Left, Right ) True
' Decimal.op_GreaterThan( Left, Right ) False
' Decimal.op_GreaterThanOrEqual( Left, Right ) True
' Decimal.op_Inequality( Left, Right ) False
' Decimal.op_LessThan( Left, Right ) False
' Decimal.op_LessThanOrEqual( Left, Right ) True
// Example of the decimal relational operators.
using System;
class Example
{
const string dataFmt = "{0,43} {1}";
// Compare decimal parameters, and display them with the results.
static void CompareDecimals(System.Windows.Controls.TextBlock outputBlock, decimal Left, decimal Right,
string RightText)
{
outputBlock.Text += "\n";
outputBlock.Text += String.Format(dataFmt, "Right: " + RightText, Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left == Right", Left == Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left > Right", Left > Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left >= Right", Left >= Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left != Right", Left != Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left < Right", Left < Right) + "\n";
outputBlock.Text += String.Format(dataFmt, "Left <= Right", Left <= Right) + "\n";
}
public static void Demo(System.Windows.Controls.TextBlock outputBlock)
{
decimal Left = new decimal(123.456);
outputBlock.Text +=
"This example of the decimal relational operators " +
"generates the \nfollowing output. It creates several " +
"different decimal values \nand compares them with " +
"the following reference value.\n" + "\n";
outputBlock.Text += String.Format(dataFmt,
"Left: decimal( 123.456 )", Left) + "\n";
// Create objects to compare with a 2-hour decimal.
CompareDecimals(outputBlock, Left, new decimal(1.23456E+2),
"decimal( 1.23456E+2 )");
CompareDecimals(outputBlock, Left, new decimal(123.4567),
"decimal( 123.4567 )");
CompareDecimals(outputBlock, Left, new decimal(123.4553),
"decimal( 123.4553 )");
CompareDecimals(outputBlock, Left, new decimal(123456000, 0, 0, false, 6),
"decimal( 123456000, 0, 0, false, 6 )");
}
}
/*
This example of the decimal relational operators generates the
following output. It creates several different decimal values
and compares them with the following reference value.
Left: decimal( 123.456 ) 123.456
Right: decimal( 1.23456E+2 ) 123.456
Left == Right True
Left > Right False
Left >= Right True
Left != Right False
Left < Right False
Left <= Right True
Right: decimal( 123.4567 ) 123.4567
Left == Right False
Left > Right False
Left >= Right False
Left != Right True
Left < Right True
Left <= Right True
Right: decimal( 123.4553 ) 123.4553
Left == Right False
Left > Right True
Left >= Right True
Left != Right True
Left < Right False
Left <= Right False
Right: decimal( 123456000, 0, 0, false, 6 ) 123.456000
Left == Right True
Left > Right False
Left >= Right True
Left != Right False
Left < Right False
Left <= Right True
*/
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.