When the program copy files, the text box Total_Percentage_Done is not being updated

When the program copy files, the text box Total_Percentage_Done is not being updated
It copied all of the files from one directory into another, but the text box showing
percentage completed never got updated.

This line with a  99 mark can be found below
 99     Total_Percentage_Done.Text = Total_Percentage_Completed   <-- Problem
======================================================

Option Explicit

'These are public variables and constant within this form and therefore,
'its value can be accessed by any function and procedure eithin this form
Const Source_File_Path_1 = "C:\WINNT\SYSTEM32\"      '"A:\WebOffice_VPN\"
Const Source_File_Path_2 = "C:\WINNT\SYSTEM32\"      '"A:\WebOffice_VPN\OCX\"

Dim Boot_Up_Drive_Letter As String                   'C:\
Dim Boot_Up_Drive_Letter_And_Directory As String     'C:\winnt\system32\'

/////////////////////////////////////////////////////////////////////////////

Private Sub Form_Load()
  ProgressBar1.Max = 5
  ProgressBar1.Visible = True
 
  'If ProgressBar1.Max =  5, then it will take 5 seconds to fill the Progress Bar
  'If ProgressBar1.Max = 10, then it will take 10 seconds to fill the Progress Bar
  'If ProgressBar1.Max = 20, then it will take 20 seconds to fill the Progress Bar

  Timer1.Interval = 1000
  Timer1.Enabled = True
End Sub

/////////////////////////////////////////////////////////////////////////////

Private Sub timer1_Timer()
  Static integer_Time
 
  If IsEmpty(integer_Time) Then
    integer_Time = 1
    Time_Text_Box = integer_Time
  End If
 
  ProgressBar1.Value = integer_Time
 
  If integer_Time = ProgressBar1.Max Then
    Timer1.Enabled = False
    ProgressBar1.Visible = False
    integer_Time = 1
    Time_Text_Box = integer_Time
    ProgressBar1.Value = ProgressBar1.Min
    Call Compute_Total_Files_Size
  Else
    integer_Time = integer_Time + 1
    Time_Text_Box = integer_Time
  End If
End Sub

/////////////////////////////////////////////////////////////////////////////

Private Sub Compute_Total_Files_Size()

    Dim File_Size As Double
    Dim Folder_Size As Double
    Dim Percent_Of_Total As Double
    Dim Total_Percentage_Completed As Double
    Dim Error_Exist As Boolean
   
    'Declare File System Variables
    Dim object_File As Scripting.File
    Dim object_FileSystem As Scripting.FileSystemObject
    Dim object_Folder As Scripting.Folder

    'Source_File_Path_1 = "A:\WebOffice_VPN\"
    'Source_File_Path_2 = "A:\WebOffice_VPN\OCX\"

    Set object_FileSystem = New Scripting.FileSystemObject
    Set object_Folder = object_FileSystem.GetFolder(Source_File_Path_1)

    Error_Exist = False
    Folder_Size = object_Folder.Size
    Total_Percentage_Completed = 0

    Form_Copy_Status.Show

    For Each object_File In object_Folder.Files
      Form_Copy_Status.Copy_From = Source_File_Path_1        'A:\WebOffice_VPN\
      Form_Copy_Status.Copy_To = Form1.Directory_Box          'C:\WebOffice_VPN\
      object_FileSystem.CopyFile Source_File_Path_1 & _
                                                object_File.Name, "C:\WebOffice_VPN\"

      Percent_Of_Total = Val(Format((object_File.Size / Folder_Size) * 100, "0.00"))
      Total_Percentage_Completed = Total_Percentage_Completed + Percent_Of_Total
 99     Total_Percentage_Done.Text = Total_Percentage_Completed   <-- Problem
      Debug.Print " File Name = "; object_File.Name; "  File Size = ";  _
                           object_File.Size; "Percent_Of_Total = "; Percent_Of_Total
    Next object_File
   
End Sub
lin100Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

vinnyd79Commented:
Try adding a DoEvents before your Next line:

DoEvents
Next object_File
0
lin100Author Commented:
Hi  vinnyd79. Thank you very much for your answer. Please explain why I need
DoEvents in order for it to work ?

Under what condition would I used DoEvents ?

You got an A. Please respond to my question
0
vinnyd79Commented:
DoEvents passes control to the OS so it can process messages in its queue.I usually put one in a loop such as For/Next, Do/Until,While/Wend to allow things to update,such as a Label or a Progress Bar.


http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbenlr98/html/vafctdoevents.asp
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic Classic

From novice to tech pro — start learning today.