How to fix window freeze while copying files...

I have a small program that copies files from a few locations from a hd to another folder.... sometimes these files combined are in excess of 50gb.. I have the progress bar written and it works, except the window freezes while its copying files and then it suddenly will move the progress bar and freeze again... eventually it completes the copy but you dont really see a nice transition on the progress bar....

Any help?

is this in a program you have writen?
if so, can you post some code for us to see?

Code:

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Private dblTotal As Double
Private strDocuments, strDesktop, strSize, strOutlook, strOE, strFav As String
Private dblOutlookSize, dblDocumentsSize, dblOE, dblDesktop As Double

Private Sub cmdBackup_Click()

Dim fso As New FileSystemObject

strOutlook = Environ("USERPROFILE") & "\Local Settings\Application Data\Microsoft\Outlook"
strOE = Environ("USERPROFILE") & "\Local Settings\Application Data\Identities"
strDocuments = Environ("USERPROFILE") & "\My Documents"
strDesktop = Environ("USERPROFILE") & "\Desktop"
strFav = Environ("USERPROFILE") & "\Favorites"

If fso.FolderExists(strOutlook) = True Then
    dblTotal = dblTotal + fso.GetFolder(strOutlook).Size
    If Round((fso.GetFolder(strOutlook).Size / 1073741824), 2) > 0.99 Then
        lblOutlookSize.Caption = Round((fso.GetFolder(strOutlook).Size / 1073741824), 2) & " GB"
    ElseIf Round((fso.GetFolder(strOutlook).Size / 1048576), 2) > 0.99 Then
        lblOutlookSize.Caption = Round((fso.GetFolder(strOutlook).Size / 1048576), 2) & " MB"
    Else
        lblOutlookSize.Caption = Round((fso.GetFolder(strOutlook).Size / 1024), 2) & " KB"
    End If
Else
    lblOutlookSize.Caption = "None"
End If

If fso.FolderExists(strOE) Then
    dblTotal = dblTotal + fso.GetFolder(strOE).Size
    If Round((fso.GetFolder(strOE).Size / 1073741824), 2) > 0.99 Then
        lblOEsize.Caption = Round((fso.GetFolder(strOE).Size / 1073741824), 2) & " GB"
    ElseIf (Round((fso.GetFolder(strOE).Size / 1048576), 2) > 0.99) Then
        lblOEsize.Caption = Round((fso.GetFolder(strOE).Size / 1048576), 2) & " MB"
    Else
        lblOEsize.Caption = Round((fso.GetFolder(strOE).Size / 1024), 2) & " KB"
    End If
Else
    lblOEsize.Caption = "None"
End If
If fso.FolderExists(strDocuments) Then
    dblTotal = dblTotal + fso.GetFolder(strDocuments).Size
    If Round((fso.GetFolder(strDocuments).Size / 1073741824), 2) > 0.99 Then
        lblDocsize.Caption = Round((fso.GetFolder(strDocuments).Size / 1073741824), 2) & " GB"
    ElseIf (Round((fso.GetFolder(strDocuments).Size / 1048576), 2) > 0.99) Then
        lblDocsize.Caption = Round((fso.GetFolder(strDocuments).Size / 1048576), 2) & " MB"
    Else
        lblDocsize.Caption = Round((fso.GetFolder(strDocuments).Size / 1024), 2) & " KB"
    End If
Else
    lblDocsize.Caption = "None"
End If

If fso.FolderExists(strDesktop) Then
    dblTotal = dblTotal + fso.GetFolder(strDesktop).Size
    If Round((fso.GetFolder(strDesktop).Size / 1073741824), 2) > 0.99 Then
        lblDesktopSize.Caption = Round((fso.GetFolder(strDesktop).Size / 1073741824), 2) & " GB"
    ElseIf (Round((fso.GetFolder(strDesktop).Size / 1048576), 2) > 0.99) Then
        lblDesktopSize.Caption = Round((fso.GetFolder(strDesktop).Size / 1048576), 2) & " MB"
    Else
      lblDesktopSize.Caption = Round((fso.GetFolder(strDesktop).Size / 1024), 2) & " KB"
    End If
Else
    lblDesktopSize.Caption = "None"
End If

If fso.FolderExists(strFav) Then
    dblTotal = dblTotal + fso.GetFolder(strFav).Size
    If Round((fso.GetFolder(strFav).Size / 1073741824), 2) > 0.99 Then
        lblFavsize.Caption = Round((fso.GetFolder(strFav).Size / 1073741824), 2) & " GB"
    ElseIf (Round((fso.GetFolder(strFav).Size / 1048576), 2) > 0.99) Then
        lblFavsize.Caption = Round((fso.GetFolder(strFav).Size / 1048576), 2) & " MB"
    Else
        lblFavsize.Caption = Round((fso.GetFolder(strFav).Size / 1024), 2) & " KB"
    End If
Else
    lblFavsize.Caption = "None"
End If

lblTotalSize.Caption = Round((dblTotal / 1073741824), 2) & " GB"


userInput = txtLocation.Text


If Not fso.FolderExists(userInput) Then
    fso.CreateFolder userInput
End If
ProgressBar1.Min = 0
ProgressBar1.Max = 100
ProgressBar1.Value = 0
lblPercent.Caption = Int(ProgressBar1.Value * 100 / ProgressBar1.Max)
lblPercent.Refresh

If fso.FolderExists(strOutlook) Then
fso.CopyFolder strOutlook, userInput & "\Outlook"
    DoEvents
    ProgressBar1.Value = (ProgressBar1.Value + CInt((fso.GetFolder(strOutlook).Size / dblTotal) * 100))
End If

If fso.FolderExists(strOE) Then
    fso.CopyFolder strOE, userInput & "\Outlook Express"
    DoEvents
    ProgressBar1.Value = (ProgressBar1.Value + CInt((fso.GetFolder(strOE).Size / dblTotal) * 100))
End If

If fso.FolderExists(strDocuments) Then
    fso.CopyFolder strDocuments, userInput & "\My Documents"
    DoEvents
    ProgressBar1.Value = (ProgressBar1.Value + CInt((fso.GetFolder(strDocuments).Size / dblTotal) * 100))
End If

If fso.FolderExists(strDesktop) Then
fso.CopyFolder strDesktop, userInput & "\Desktop"
    DoEvents
    ProgressBar1.Value = ProgressBar1.Value + CInt((fso.GetFolder(strDesktop).Size / dblTotal) * 100)
End If

If fso.FolderExists(strFav) Then
fso.CopyFolder strFav, userInput & "\Favorites"
    DoEvents
    ProgressBar1.Value = (ProgressBar1.Value + CInt((fso.GetFolder(strFav).Size / dblTotal) * 100))
End If

    lblPercent.Caption = Int(ProgressBar1.Value * 100 / ProgressBar1.Max)
    lblPercent.Refresh
   

End Sub

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I see already that i could just place the lblPrecent modifier/refresher at the end of each copy...

I would try to fraise this in a loop but im not sure how i would do it.... Its been a while since i wrote any vb6 code.... Im trying ot learn vb.net so please forgive me if its obvious...

But even if i did place it in a loop would it still freeze the window?

CopyFolder doesn't indicate any progress. Your code will take forever to run.

You should write this in .Net, using a couple of subthreads being controlled by a main thread.

Do you know any good compilers? I have little experience with .net so im looking for one that can help me autocomplete....

Download Visual Studio 2005 Express and visit the VB.Net forum.

VS 2008 is also available, but might be in beta still.

Wow VB 2008 Express looks awesome... downloading it now.... thanks for the info... ill convert my backup program to a vb.net application...

Ill let you know how it turns out...

Thanks,

Heath

In VB 2005, I would have used a single statement My.Computer.FileSystem.CopyFile or My.Computer.FileSystem.CopyDirectory.
It should be present in VB 2008 also.

Quote:

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Originally Posted by Shuja Ali

It should be present in VB 2008 also.

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yes it is :)
http://msdn2.microsoft.com/en-us/lib...5e(VS.90).aspx

Is it possible to use threads in VB?

Not real easily in VB6, but VB.Net is made for multi-threading.

Quote:

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Originally Posted by s00263668

Is it possible to use threads in VB?

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This is not related to the topic discussed in this thread. Ideally you should have searched the forum and would have gotten your answer by now or you could have created a new thread.

This might give you some insight why it is not easy to implement multi-threading and what are the workarounds.

sorry about that

Just to let you know, it's possible to copy a file in VB6 without hanging the window, there is an API called CopyFileEx that is pretty easy to use, there is an example here:

http://www.mentalis.org/apilist/CopyFileEx.shtml

JeffB