upload multiple files to a local folder in vb.net - vb.net

Question

I am trying to create a function that will allow user to upload multiple files to a local folder.
currently i am able to upload just one file. i needed to upload more files in one go.
what i use for opening files/folder
a.Multiselect = True
If a.ShowDialog() = Windows.Forms.DialogResult.OK Then
removeatt.Show()
removeatt.Text = "Remove Attachment"
fpath.Text = a.FileName
address.Text = System.IO.Path.GetFileName(a.FileName)
Dim file As String
file = fpath.Text.ToString
Label7.Text = file
If fpath.Text = "-" Then
removeatt.Hide()
Else
removeatt.Show()
End If
End If
what i use for saving attachment
If fpath.Text = "-" Then
Else
My.Computer.FileSystem.CopyFile(fpath.Text = "-", dir2 + Upload.Label16.Text, Microsoft.VisualBasic.FileIO.UIOption.AllDialogs, Microsoft.VisualBasic.FileIO.UICancelOption.DoNothing)
End If
any help is appreciated
thanks

Answer 1

It is not entirely clear to me where you handle the selected files, the first one is about removing attachments and the saving-part is not about uploading, it saves a file to the disk of the user as it seems.
Generally i'd recommend you to write a function that handles one file at a time so you can feed the function with the list of files to be copied in a for each-loop. The function is a bit "basic" to demonstrate what i mean.
Public Function CopyToDisk(ByVal DestinationPath As String, ByVal Sourcepath As String) As String
If Not System.IO.File.Exists(Sourcepath) Then
Return "Source missing" & Sourcepath
End If
Try
File.Copy(Sourcepath, DestinationPath)
Catch ex As Exception
Return ex.Message
End Try
Return "ok"
End Function

Answer 2

Well, have a look at the example from MSDN here, it has a filepicker and then it puts the objects in an array you can loop through and copy it where you want it to copy.
Here is the MSDN-original
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
InitializeOpenFileDialog()
End Sub
Private Sub Selectfilebutton_Click_1(sender As Object, e As EventArgs) Handles Selectfilebutton.Click
Dim dr As DialogResult = Me.OpenFileDialog1.ShowDialog()
If (dr = System.Windows.Forms.DialogResult.OK) Then
' Read the files
Dim file As String
For Each file In OpenFileDialog1.FileNames
'' you can loop through the array of objects and use a function to do the copying
' so for instance with my function it would be :
' copytodisk(Destination, file.filename)
' Create a PictureBox for each file, and add that file to the FlowLayoutPanel.
Try
Dim pb As New PictureBox()
Dim loadedImage As Image = Image.FromFile(file)
pb.Height = loadedImage.Height
pb.Width = loadedImage.Width
pb.Image = loadedImage
FlowLayoutPanel1.Controls.Add(pb)
Catch SecEx As SecurityException
' The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. Please contact your administrator for details.\n\n" & _
"Error message: " & SecEx.Message & "\n\n" & _
"Details (send to Support):\n\n" & SecEx.StackTrace)
Catch ex As Exception
' Could not load the image - probably permissions-related.
MessageBox.Show(("Cannot display the image: " & file.Substring(file.LastIndexOf("\"c)) & _
". You may not have permission to read the file, or " + "it may be corrupt." _
& ControlChars.Lf & ControlChars.Lf & "Reported error: " & ex.Message))
End Try
Next file
End If
End Sub
Public Sub InitializeOpenFileDialog()
' Set the file dialog to filter for graphics files.
Me.OpenFileDialog1.Filter = _
"Images (*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|" + _
"All files (*.*)|*.*"
' Allow the user to select multiple images.
Me.OpenFileDialog1.Multiselect = True
Me.OpenFileDialog1.Title = "My Image Browser"
End Sub