DocumentViewer: Hide file not loaded label properly

Controls.DocumentViewer/DocumentViewer.vb

@@ -55,7 +55,7 @@ Public Class DocumentViewer
 
     Private _FileStream As Stream
     Private _FilePath As String
-    Private _Fileinfo As FileInfo
+    Private _FileInfo As FileInfo
     Private _FileLoadMode As FileLoadMode = FileLoadMode.File
 
     ' List of all created temp files when converting msg files
@@ -109,12 +109,12 @@ Public Class DocumentViewer
 
         _FilePath = FilePath
         _FileLoadMode = FileLoadMode.File
-        _Fileinfo = New FileInfo(FilePath)
+        _FileInfo = New FileInfo(FilePath)
 
         _logger.Info("Loading File [{0}] from Filesystem", FilePath)
         FileLoaded = DoLoadFile(FilePath)
 
-        SetViewerMode(_Fileinfo.Extension)
+        SetViewerMode(_FileInfo.Extension)
         UpdateMainUi()
     End Sub
 
@@ -141,10 +141,6 @@ Public Class DocumentViewer
         UpdateMainUi()
     End Sub
 
-    Private Sub SearchFile(pSearchQuery As String)
-
-    End Sub
-
     ''' <summary>
     ''' Terminate Viewer, freeing up resources and deleting temp files
     ''' </summary>
@@ -180,8 +176,6 @@ Public Class DocumentViewer
         Return True
     End Function
 
-
-
     Public Function Save() As Boolean
         Dim oSaveResult As GdPictureStatus = GdPictureStatus.OK
 
@@ -204,6 +198,11 @@ Public Class DocumentViewer
     Public Sub CloseDocument()
         Try
             GdViewer.CloseDocument()
+
+            _FileInfo = Nothing
+            _FilePath = Nothing
+            _FileStream = Nothing
+
             UpdateMainUi()
         Catch ex As Exception
             _logger.Error(ex)
@@ -449,10 +448,10 @@ Public Class DocumentViewer
     End Sub
     Private Sub FreeFile()
         Try
-            If Len(_FilePath) = 0 OrElse _Fileinfo Is Nothing Then
+            If Len(_FilePath) = 0 OrElse _FileInfo Is Nothing Then
                 Exit Sub
             End If
-            Dim oExtension As String = _Fileinfo.Extension.ToUpper
+            Dim oExtension As String = _FileInfo.Extension.ToUpper
             Select Case _ViewerMode
                 Case ViewerMode.RichText
                     _logger.Debug("Closing RichText Editor")
@@ -641,6 +640,10 @@ Public Class DocumentViewer
 
         End Select
 
+        If _FileStream Is Nothing And _FilePath Is Nothing Then
+            lbFileNotLoaded.Visible = False
+        End If
+
         Select Case _ViewerMode
             Case ViewerMode.GDPicture
                 buttonPrint.Enabled = True