Mega Code Archive
Implements IFormatProvider, ICustomFormatter
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Public Class ByteByByteFormatter : Implements IFormatProvider, ICustomFormatter
Public Function GetFormat(formatType As Type) As Object _
Implements IFormatProvider.GetFormat
If formatType Is GetType(ICustomFormatter) Then
Return Me
Else
Return Nothing
End If
End Function
Public Function Format(fmt As String, arg As Object, _
formatProvider As IFormatProvider) As String _
Implements ICustomFormatter.Format
If Not formatProvider.Equals(Me) Then Return Nothing
If Not fmt.StartsWith("X") Then
Return Nothing
End If
If Not typeof arg Is Byte And _
Not typeof arg Is Int16 And _
Not typeof arg Is Int32 And _
Not typeof arg Is Int64 And _
Not typeof arg Is SByte And _
Not typeof arg Is UInt16 And _
Not typeof arg Is UInt32 And _
Not typeof arg Is UInt64 Then _
Return Nothing
Dim bytes() As Byte = BitConverter.GetBytes(arg)
Dim output As String = Nothing
For ctr As Integer = bytes.Length - 1 To 0 Step -1
output += String.Format("{0:X2} ", bytes(ctr))
Next
Return output.Trim()
End Function
End Class
Public Module Example
Public Sub Main()
Dim value As Byte = 214
Console.WriteLine(String.Format(New ByteByByteFormatter(), "{0,10:N0}", value))
End Sub
End Module
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