?
Solved

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

Posted on 2003-11-25
3
Medium Priority
?
259 Views
Last Modified: 2010-05-01
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
0
Comment
Question by:lin100
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 28

Expert Comment

by:vinnyd79
ID: 9820376
Try adding a DoEvents before your Next line:

DoEvents
Next object_File
0
 

Author Comment

by:lin100
ID: 9821255
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
 
LVL 28

Accepted Solution

by:
vinnyd79 earned 200 total points
ID: 9821378
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

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Enums (shorthand for ‘enumerations’) are not often used by programmers but they can be quite valuable when they are.  What are they? An Enum is just a type of variable like a string or an Integer, but in this case one that you create that contains…
This article describes how to use a set of graphical playing cards to create a Draw Poker game in Excel or VB6.
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question