Export (0) Print
Expand All

TimeSpan.FromSeconds Method

Returns a TimeSpan that represents a specified number of seconds, where the specification is accurate to the nearest millisecond.

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

'Declaration
Public Shared Function FromSeconds ( _
	value As Double _
) As TimeSpan

Parameters

value
Type: System.Double
A number of seconds, accurate to the nearest millisecond.

Return Value

Type: System.TimeSpan
An object that represents value.

ExceptionCondition
OverflowException

value is less than MinValue or greater than MaxValue.

-or-

value is Double.PositiveInfinity.

-or-

value is Double.NegativeInfinity.

ArgumentException

value is equal to Double.NaN.

The value parameter is converted to milliseconds, which is converted to ticks, and that number of ticks is used to intialize the new TimeSpan. Therefore, value will only be considered accurate to the nearest millisecond. Note that, because of the loss of precision of the Double data type, this can generate an OverflowException for values that are near but still in the range of either MinValue or MaxValue, This is the cause of an OverflowException, for example, in the following attempt to instantiate a TimeSpan object.


' The following throws an OverflowException at runtime
Dim maxSpan As TimeSpan = TimeSpan.FromSeconds(TimeSpan.MaxValue.TotalSeconds)


The following code example creates several TimeSpan objects using the FromSeconds method.


' Example of the TimeSpan.FromSeconds( Double ) method.

Module Example

   Sub GenTimeSpanFromSeconds(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal seconds As Double)

      ' Create a TimeSpan object and TimeSpan string from 
      ' a number of seconds.
      Dim interval As TimeSpan = _
          TimeSpan.FromSeconds(seconds)
      Dim timeInterval As String = interval.ToString()

      ' Pad the end of the TimeSpan string with spaces if it 
      ' does not contain milliseconds.
      Dim pIndex As Integer = timeInterval.IndexOf(":"c)
      pIndex = timeInterval.IndexOf("."c, pIndex)
      If pIndex < 0 Then timeInterval &= "        "

      outputBlock.Text &= String.Format("{0,21}{1,26}", seconds, timeInterval) & vbCrLf
   End Sub

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      outputBlock.Text &= "This example of " & _
          "TimeSpan.FromSeconds( Double )" & _
          vbCrLf & "generates the following output." & vbCrLf & vbCrLf
      outputBlock.Text &= "{0,21}{1,18}", _
          "FromSeconds", "TimeSpan" & vbCrLf
      outputBlock.Text &= "{0,21}{1,18}", _
          "-----------", "--------" & vbCrLf

      GenTimeSpanFromSeconds(outputBlock, 0.001)
      GenTimeSpanFromSeconds(outputBlock, 0.0015)
      GenTimeSpanFromSeconds(outputBlock, 12.3456)
      GenTimeSpanFromSeconds(outputBlock, 123456.7898)
      GenTimeSpanFromSeconds(outputBlock, 1234567898.7654)
      GenTimeSpanFromSeconds(outputBlock, 1)
      GenTimeSpanFromSeconds(outputBlock, 60)
      GenTimeSpanFromSeconds(outputBlock, 3600)
      GenTimeSpanFromSeconds(outputBlock, 86400)
      GenTimeSpanFromSeconds(outputBlock, 1801220.2)
   End Sub
End Module

' This example of TimeSpan.FromSeconds( Double )
' generates the following output.
' 
'           FromSeconds          TimeSpan
'           -----------          --------
'                 0.001          00:00:00.0010000
'                0.0015          00:00:00.0020000
'               12.3456          00:00:12.3460000
'           123456.7898        1.10:17:36.7900000
'       1234567898.7654    14288.23:31:38.7650000
'                     1          00:00:01
'                    60          00:01:00
'                  3600          01:00:00
'                 86400        1.00:00:00
'             1801220.2       20.20:20:20.2000000


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

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Community Additions

ADD
Show:
© 2014 Microsoft