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DateTimeFormatInfo.FullDateTimePattern Property

Gets or sets the custom format string for a long date and long time value.

Namespace:  System.Globalization
Assemblies:   System.Globalization (in System.Globalization.dll)
  mscorlib (in mscorlib.dll)

'Declaration
Public Property FullDateTimePattern As String

Property Value

Type: System.String
The custom format string for a long date and long time value.

ExceptionCondition
ArgumentNullException

The property is being set to Nothing.

InvalidOperationException

The property is being set and the DateTimeFormatInfo object is read-only.

The "F" standard format string is an alias for the FullDateTimePattern property. In other words, the custom format string assigned to this property defines the format of the result string for the "F" standard format string. For more information, see Standard Date and Time Format Strings.

The value of the FullDateTimePattern property is generated dynamically by concatenating the LongDatePattern and LongTimePattern properties separated by a space. This dynamic assignment occurs under the following conditions:

  • If the property value is retrieved before it has been explicitly set.

  • When the value of the LongDatePattern property changes.

  • When the value of the LongTimePattern property changes.

This property is affected if the value of the Calendar property changes.

The following example displays the value of FullDateTimePattern for a few cultures.

Imports System
Imports System.Globalization

Public Class SamplesDTFI

   Public Shared Sub Main()

      ' Displays the values of the pattern properties.
      Console.WriteLine(" CULTURE    PROPERTY VALUE")
      PrintPattern("en-US")
      PrintPattern("ja-JP")
      PrintPattern("fr-FR")

   End Sub 'Main

   Public Shared Sub PrintPattern(myCulture As [String])

      Dim myDTFI As DateTimeFormatInfo = New CultureInfo(myCulture, False).DateTimeFormat
      Console.WriteLine("  {0}     {1}", myCulture, myDTFI.FullDateTimePattern)

   End Sub 'PrintPattern

End Class 'SamplesDTFI 

'This code produces the following output.  The question marks take the place of native script characters. 

' CULTURE    PROPERTY VALUE 
'  en-US     dddd, MMMM dd, yyyy h:mm:ss tt 
'  ja-JP     yyyy'?'M'?'d'?' H:mm:ss 
'  fr-FR     dddd d MMMM yyyy HH:mm:ss 
'

.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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