Double.MaxValue Field

Represents the largest possible value of a Double. This field is constant.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Const MaxValue As Double

The value of this constant is positive 1.7976931348623157E+308.

The result of an operation that exceeds Double.MaxValue is Double.PositiveInfinity. In the following example, Double.PositiveInfinity results from addition, multiplication, and exponentiation operations when the result exceeds Double.MaxValue.

Module Example
   Public Sub Main()
      Dim result1 As Double = 7.997e307 + 9.985e307
      Console.WriteLine("{0} (Positive Infinity: {1})", 
                        result1, Double.IsPositiveInfinity(result1))

      Dim result2 As Double = 1.5935e250 * 7.948e110
      Console.WriteLine("{0} (Positive Infinity: {1})", 
                        result2, Double.IsPositiveInfinity(result2))

      Dim result3 As Double = Math.Pow(1.256e100, 1.34e20)
      Console.WriteLine("{0} (Positive Infinity: {1})", 
                        result3, Double.IsPositiveInfinity(result3))
   End Sub 
End Module 
' The example displays the following output: 
'    Infinity (Positive Infinity: True) 
'    Infinity (Positive Infinity: True) 
'    Infinity (Positive Infinity: True)

The following code example illustrates the use of MaxValue:

Public Class Temperature

    Public Shared ReadOnly Property MinValue() As Double 
        Get 
            Return Double.MinValue
        End Get 
    End Property 

    Public Shared ReadOnly Property MaxValue() As Double 
        Get 
            Return Double.MaxValue
        End Get 
    End Property 

    ' The value holder 
    Protected m_value As Double 

    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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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