Windows apps
Collapse the table of content
Expand the table of content
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Double.MaxValue Field


The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

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

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

Public Const MaxValue As Double

Field Value

Type: System.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
            Return Double.MinValue
        End Get
    End Property

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

    ' The value holder
    Protected m_value As Double

    Public Property Value() As Double
            Return m_value
        End Get
        Set(ByVal Value As Double)
            m_value = Value
        End Set
    End Property

    Public Property Celsius() As Double
            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

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Return to top
© 2018 Microsoft