Mega Code Archive
Convert ToDateTime Method (Object, IFormatProvider) converts object to DateTime using culture-specific format
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Imports System.Globalization
Module Example
Public Sub Main()
Dim cultureNames() As String = { "en-US", "hu-HU", "pt-PT" }
Dim objects() As Object = { #1/1/2010#, "today","05/10/2010 6:13:18 PM", "September 8, 1899" }
For Each cultureName As String In cultureNames
Console.WriteLine("{0} culture:", cultureName)
Dim provider As New CustomProvider(cultureName)
For Each obj As Object In objects
Try
Dim dateValue As Date = Convert.ToDateTime(obj, provider)
Console.WriteLine("{0} --> {1}", obj,dateValue.ToString(New CultureInfo(cultureName)))
Catch e As FormatException
Console.WriteLine("FormatException")
Catch e As InvalidCastException
Console.WriteLine("InvalidCastException")
End Try
Next
Console.WriteLine()
Next
End Sub
End Module
Public Class CustomProvider : Implements IFormatProvider
Private cultureName As String
Public Sub New(cultureName As String)
Me.cultureName = cultureName
End Sub
Public Function GetFormat(formatType As Type) As Object _
Implements IFormatProvider.GetFormat
If formatType Is GetType(DateTimeFormatInfo) Then
Console.Write("(CustomProvider retrieved.) ")
Return New CultureInfo(cultureName).GetFormat(formatType)
Else
Return Nothing
End If
End Function
End Class
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