Value of type 'filestream' cannot be converted to a 'string'.

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I have some code here for FileSystemWatcher1_Changed.

Private Sub FileSystemWatcher1_Changed(ByVal sender As System.Object, ByVal e As System.IO.FileSystemEventArgs) Handles FileSystemWatcher1.Changed
        Dim path As FileStream = Nothing
        Try

            path = File.Open(FileMode.Open, FileAccess.ReadWrite, FileShare.None)
            path.Close()
        Catch ex As Exception

            Dim sample As String
            sample = md5_hash(path)


            Using f As System.IO.FileStream = System.IO.File.OpenRead("viruslist.txt")
                Using s As System.IO.StreamReader = New System.IO.StreamReader(f)
                    While Not s.EndOfStream
                        Dim line As String = s.ReadLine

                        If (line = sample) Then
                            Detect.ShowDialog()
                        End If
                    End While
                End Using
            End Using
        End Try
    End Sub

In line

sample = md5_hash(path)

, 'path' is saying that Value type of 'FileStream' cannot be converted to 'String'.

Is there any way of fixing this?

What I have tried:

Researching this problem.

Declaring 'path' as an array (for some reason I thought it might do something.)

Posted 4-Jun-18 19:57pm

Member 13242613

Updated 4-Jun-18 20:21pm

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User 7429338 · Answer 1 · 2018-06-04T20:17:00

Solution 1

FileSystemWatcher1_Changed provides you with a path: the parameter e is of type FileSystemEventArgs which has a property FullPath.

So:

path = e.FullPath

Posted 4-Jun-18 20:17pm

User 7429338

OriginalGriff · Answer 2 · 2018-06-04T20:23:00

Go back to your previous question: Is there a way to assign a file path to a variable when its opened without using openfiledialog?[^] and read the answer.
Then look at your code, and start thinking. At the moment, you are guessing what to do - and that isn't a viable development strategy.
Look at the code you show us! It won't even compile for so many reasons that it's getting silly :laugh:

And what on earth makes you assume that - even if that code did miraculously start working - all files that change will contain text-based data (i.e. data that will fit in a string)? Very little data on a computer is text: only the human readable stuff. So your MD5 (which is not recommended for new projects anyway and hasn't been for half a dozen years) method should not expect a string, it should expect an array of bytes.

Seriously: stop guessing; start thinking. This isn't difficult code, but you are doing your damnedest to make it as complicated as possible!