Convert.ToDouble Method (Boolean)

 

Converts the specified Boolean value to the equivalent double-precision floating-point number.

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

Public Shared Function ToDouble (
	value As Boolean
) As Double

Parameters

value
Type: System.Boolean

The Boolean value to convert.

Return Value

Type: System.Double

The number 1 if value is true; otherwise, 0.

The following example converts a Boolean value to a Double value.

Public Sub ConvertDoubleBool(ByVal doubleVal As Double)
    Dim boolVal As Boolean

    'Double to Boolean conversion cannot overflow.
    boolVal = System.Convert.ToBoolean(doubleVal)
    System.Console.WriteLine("{0} as a Boolean is: {1}.", _
                              doubleVal, boolVal)

    'Boolean to Double conversion cannot overflow.
    doubleVal = System.Convert.ToDouble(boolVal)
    System.Console.WriteLine("{0} as a Double is: {1}.", _
                              boolVal, doubleVal)
End Sub

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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