' For complete examples and data files, please go to https://github.com/groupdocs-metadata/GroupDocs.Metadata-for-.NET
Namespace System.IO
Public Module MyExtesion
<Runtime.CompilerServices.Extension()> _
Public Function GetFiles(directoryInfo As Global.System.IO.DirectoryInfo, documentType As DocumentType) As Global.System.IO.FileInfo()
Dim files As Global.System.IO.FileInfo() = directoryInfo.GetFiles()
' return empty array if directory is empty
If files.Length = 0 Then
Return New Global.System.IO.FileInfo(-1) {}
End If
Dim result As New List(Of Global.System.IO.FileInfo)()
For Each fileInfo As Global.System.IO.FileInfo In files
Using fileFormatChecker As New FileFormatChecker(fileInfo.FullName)
If fileFormatChecker.VerifyFormat(documentType) Then
result.Add(fileInfo)
End If
End Using
Next
Return result.ToArray()
End Function
End Module
End Namespace