I have a form doing a large process. While this form is doing its
processing I want to write a status to a Textbox of where it is at in the
process. Similar to having a log file but within a textbox. As it reaches
its mark it adds a line to the textbox "Step 2 is complete." or "Step 3
Failed because of...". My problem is that the text within the textbox does
not display until after all of the processing is complete. How can I get
the text to display when it reaches each specific process? Thanx in advance
6  1431 
Two ways. one and simple way is to use Application.DoE vents() after you
update the text box but a lot of people say to avoid using that function.
The more complicated way is to use threading to do the processing in a
seperate thread from the UI.
Chris
"John Smith" <no*******@addr ess.com> wrote in message
news:uz******** ********@TK2MSF TNGP12.phx.gbl. .. I have a form doing a large process. While this form is doing its
processing I want to write a status to a Textbox of where it is at in the
process. Similar to having a log file but within a textbox. As it
reaches
its mark it adds a line to the textbox "Step 2 is complete." or "Step 3
Failed because of...". My problem is that the text within the textbox
does
not display until after all of the processing is complete. How can I get
the text to display when it reaches each specific process? Thanx in
advance
John,
You mean something as this
\\\
Private Sub Form1_Activated (ByVal sender _
As Object, ByVal e As System.EventArg s) Handles MyBase.Activate d
For i As Integer = 1 To 100000000
If i Mod 100 = 0 Then
TextBox1.Show()
End If
TextBox1.Append Text(i.ToString )
Next
End Sub
///
I hope this helps?
Cor
"John Smith" <no*******@addr ess.com> schrieb: I have a form doing a large process. While this form is doing its
processing I want to write a status to a Textbox of where it is at in the
process. Similar to having a log file but within a textbox. As it
reaches
its mark it adds a line to the textbox "Step 2 is complete." or "Step 3
Failed because of...". My problem is that the text within the textbox
does
not display until after all of the processing is complete. How can I get
the text to display when it reaches each specific process?
Solution 1:
\\\
With Me.Label1
.Text = ...
.Refresh()
End With
Application.DoE vents() ' See documentation.
///
Solution 2:
Multithreading + Windows Forms:
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0611200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0816200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0123200 3.asp>
<URL:http://www.devx.com/dotnet/Article/11358/>
<URL:http://msdn.microsoft. com/library/en-us/cpref/html/frlrfSystemWind owsFormsControl ClassInvokeTopi c.asp>
Multithreading in Visual Basic .NET (Visual Basic Language Concepts)
<URL:http://msdn.microsoft. com/library/en-us/vbcn7/html/vaconthreadingi nvisualbasic.as p>
Sample:
FileSystemEnume rator
<URL:http://dotnet.mvps.org/dotnet/samples/filesystem/downloads/FileSystemEnume rator.zip>
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
Herfried, maybe your example here can get you to answer a question I've
wondered about for a while.
With Me.Label1
.Text = ...
.Refresh()
End With
The idea behind the With clause is it allows for faster execution since the
"Me" ojbect doesn't have to be resolved 2 times in your example. But you
could rewrite your sample w/o the Me
With Label1
.Text = ...
.Refresh()
End With
In this case there wouldn't be any inhancement since you are not actually
eliminating the dot. Am I correct in my thinking?
Chris
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:ek******** ******@TK2MSFTN GP11.phx.gbl... "John Smith" <no*******@addr ess.com> schrieb:I have a form doing a large process. While this form is doing its
processing I want to write a status to a Textbox of where it is at in the
process. Similar to having a log file but within a textbox. As it
reaches
its mark it adds a line to the textbox "Step 2 is complete." or "Step 3
Failed because of...". My problem is that the text within the textbox
does
not display until after all of the processing is complete. How can I get
the text to display when it reaches each specific process?
Solution 1:
\\\
With Me.Label1
.Text = ...
.Refresh()
End With
Application.DoE vents() ' See documentation.
///
Solution 2:
Multithreading + Windows Forms:
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0611200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0816200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0123200 3.asp>
<URL:http://www.devx.com/dotnet/Article/11358/>
<URL:http://msdn.microsoft. com/library/en-us/cpref/html/frlrfSystemWind owsFormsControl ClassInvokeTopi c.asp>
Multithreading in Visual Basic .NET (Visual Basic Language Concepts)
<URL:http://msdn.microsoft. com/library/en-us/vbcn7/html/vaconthreadingi nvisualbasic.as p>
Sample:
FileSystemEnume rator
<URL:http://dotnet.mvps.org/dotnet/samples/filesystem/downloads/FileSystemEnume rator.zip>
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
Chris,
"Chris, Master of All Things Insignificant" <chris@No_Spam_ Please.com>
schrieb: Herfried, maybe your example here can get you to answer a question I've
wondered about for a while.
With Me.Label1
.Text = ...
.Refresh()
End With
The idea behind the With clause is it allows for faster execution since
the "Me" ojbect doesn't have to be resolved 2 times in your example. But
you could rewrite your sample w/o the Me
With Label1
.Text = ...
.Refresh()
End With
In this case there wouldn't be any inhancement since you are not actually
eliminating the dot. Am I correct in my thinking?
The 'Me.' is resolved even if it's not explicitly written. In this case I
used With type the code faster ;-).
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
Chis,
Not true,
The "Me" is only for the programmer, it does nothing at runtime.
The With clause creates an extra reference in a program. In this case it
will be slower than a program without a With clause, however think than
probably in parts of nanoseconds.
I hope this gives some ideas?
Cor
"Chris, Master of All Things Insignificant"
.. Herfried, maybe your example here can get you to answer a question I've
wondered about for a while.
With Me.Label1
.Text = ...
.Refresh()
End With
The idea behind the With clause is it allows for faster execution since
the "Me" ojbect doesn't have to be resolved 2 times in your example. But
you could rewrite your sample w/o the Me
With Label1
.Text = ...
.Refresh()
End With
In this case there wouldn't be any inhancement since you are not actually
eliminating the dot. Am I correct in my thinking?
Chris
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:ek******** ******@TK2MSFTN GP11.phx.gbl... "John Smith" <no*******@addr ess.com> schrieb:I have a form doing a large process. While this form is doing its
processing I want to write a status to a Textbox of where it is at in
the
process. Similar to having a log file but within a textbox. As it
reaches
its mark it adds a line to the textbox "Step 2 is complete." or "Step 3
Failed because of...". My problem is that the text within the textbox
does
not display until after all of the processing is complete. How can I
get
the text to display when it reaches each specific process?
Solution 1:
\\\
With Me.Label1
.Text = ...
.Refresh()
End With
Application.DoE vents() ' See documentation.
///
Solution 2:
Multithreading + Windows Forms:
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0611200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0816200 2.asp>
<URL:http://msdn.microsoft. com/library/en-us/dnforms/html/winforms0123200 3.asp>
<URL:http://www.devx.com/dotnet/Article/11358/>
<URL:http://msdn.microsoft. com/library/en-us/cpref/html/frlrfSystemWind owsFormsControl ClassInvokeTopi c.asp>
Multithreading in Visual Basic .NET (Visual Basic Language Concepts)
<URL:http://msdn.microsoft. com/library/en-us/vbcn7/html/vaconthreadingi nvisualbasic.as p>
Sample:
FileSystemEnume rator
<URL:http://dotnet.mvps.org/dotnet/samples/filesystem/downloads/FileSystemEnume rator.zip>
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
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