ToDouble Method (Single)

Convert.ToDouble Method (Single)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Converts the value of the specified single-precision floating point number to an equivalent double-precision floating point number.

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

'Declaration
Public Shared Function ToDouble ( _
	value As Single _
) As Double

Parameters

value
Type: System.Single
A single-precision floating point number.

Return Value

Type: System.Double
A double-precision floating point number equivalent to the value of value.

The following code sample illustrates the conversion of a Single value to a Double one, using ToDouble.


Public Sub CovertDoubleFloat(ByVal doubleVal As Double)
   Dim singleVal As Single = 0

   ' Double to Single conversion cannot overflow.
   singleVal = System.Convert.ToSingle(doubleVal)
   outputBlock.Text &= String.Format("{0} as a Single is {1}", _
                             doubleVal, singleVal) & vbCrLf

   ' Conversion from Single to Double cannot overflow.
   doubleVal = System.Convert.ToDouble(singleVal)
   outputBlock.Text &= String.Format("{0} as a Double is: {1}", _
                             singleVal, doubleVal) & vbCrLf
End Sub


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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