Threading a ShowDialog? - progress form.

[Miro]

I will try my best to ask this question correctly. I think in the end the
code will make more sence of what I am trying to accomplish. I am just not
sure of what to search for on the net.

I have a form that has a button. ( this form is a child form of a parent
form ( main form ).
Anway...in this child form I have a button, and if clicked a bunch of code
will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format when
this runs and slowely update the progress bar as each sub runs.

I cant just call the form with fStatus.ShowDia log() cause then all code
stops till this form is closed. So What I am trying is to somehow open this
form in a different thread - in ShowDialog format, so I can continue to run
my code, and as my code runs, update the progress bar on the new status form
created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of showdialog,
until it is complete.

I hope this makes sence.

Below I have code that I think is in the right direction, but I am at a wall
as I have never done any thread processing.

Thanks for your help,

Miro
'==== some command button _click event on a current form. 'which is a child
form of a mdi form.
'Somewhere here change the icon to be hourglass

Dim fStatus As New frmStatus()

'im pulling code out of my butt for this next line here cause ive
never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.ShowDia log)

Thread1.Start()

'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later

fStatus.pbStatu s.Value += 10
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later
fStatus.pbStatu s.Value += 10
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later

'Somewhere here change the icon to be pointer again.

'close the form
fStatus.Close()
'im assuming i have to close the thread too or something?
fStatus.Dispose ()
'user should have access to the whole app again.

'==== end of some command button _click event

[Jay B. Harlow]

Miro,
Are you using VS 2005 (.NET 2.0) or VS 2002/2003 (.NET 1.x)?

..NET 2.0's new BackgroundWorke r component makes this really easy!

For example create a new dialog from, put a BackgroundWorke r object on it,
along with a ProgressBar.

Using the following code for the form.

Option Strict On
Option Explicit On

Imports System.Componen tModel
Imports System.Threadin g

Public Class LongProcessDial og

Protected Overrides Sub OnLoad(ByVal e As System.EventArg s)
MyBase.OnLoad(e )
BackgroundWorke r1.RunWorkerAsy nc()
End Sub

Private Sub BackgroundWorke r1_DoWork(ByVal sender As System.Object,
ByVal e As DoWorkEventArgs ) Handles BackgroundWorke r1.DoWork
For percentProgress As Integer = 1 To 100
Thread.Sleep(Ti meSpan.FromSeco nds(1.5))
BackgroundWorke r1.ReportProgre ss(percentProgr ess)
Next
End Sub

Private Sub BackgroundWorke r1_ProgressChan ged(ByVal sender As Object,
ByVal e As ProgressChanged EventArgs) Handles
BackgroundWorke r1.ProgressChan ged
Me.ProgressBar1 .Value = e.ProgressPerce ntage
End Sub

Private Sub BackgroundWorke r1_RunWorkerCom pleted(ByVal sender As Object,
ByVal e As RunWorkerComple tedEventArgs) Handles
BackgroundWorke r1.RunWorkerCom pleted
Close()
End Sub

End Class

The BackgroundWorke r1_DoWork event is where all the real work (long running
process) is being done. Within it you call BackgroundWorke r1.ReportProgre ss
to have the dialog update its controls.

The BackgroundWorke r itself handles calling Control.Invoke where needed.

BackgroundWorke r also supports passing a parameter to the background thread,
returning results (including exceptions) as well as cancelling the
background thread!

My Xml Export Sample, uses the BackgroundWorke r within an Outlook form to
perform a long running process.

http://www.tsbradley.net/Samples/VST...rt.Sample.aspx
--
Hope this helps
Jay B. Harlow
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

>I will try my best to ask this question correctly. I think in the end the
code will make more sence of what I am trying to accomplish. I am just not
sure of what to search for on the net.

I have a form that has a button. ( this form is a child form of a parent
form ( main form ).
Anway...in this child form I have a button, and if clicked a bunch of code
will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format when
this runs and slowely update the progress bar as each sub runs.

I cant just call the form with fStatus.ShowDia log() cause then all code
stops till this form is closed. So What I am trying is to somehow open
this form in a different thread - in ShowDialog format, so I can continue
to run my code, and as my code runs, update the progress bar on the new
status form created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of
showdialog, until it is complete.

I hope this makes sence.

Below I have code that I think is in the right direction, but I am at a
wall as I have never done any thread processing.

Thanks for your help,

Miro
'==== some command button _click event on a current form. 'which is a
child form of a mdi form.
'Somewhere here change the icon to be hourglass

Dim fStatus As New frmStatus()

'im pulling code out of my butt for this next line here cause ive
never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.ShowDia log)

Thread1.Start()

'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later

fStatus.pbStatu s.Value += 10
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later
fStatus.pbStatu s.Value += 10
System.Threadin g.Thread.Sleep( 2000) 'Will Call some sub instead later

'Somewhere here change the icon to be pointer again.

'close the form
fStatus.Close()
'im assuming i have to close the thread too or something?
fStatus.Dispose ()
'user should have access to the whole app again.

'==== end of some command button _click event

[Miro]

Im using vb express 2005

This is what i needed to get me started.

I will search the web and what I need for Background worker

From what I understand reading the code, I cannot have the code I require in
the "form", i have to move the sub calls to the "background worker" sub, and
call the origina subs in there.

Thanks much!

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:30******** *************** ***********@mic rosoft.com...

Miro,
Are you using VS 2005 (.NET 2.0) or VS 2002/2003 (.NET 1.x)?

.NET 2.0's new BackgroundWorke r component makes this really easy!

For example create a new dialog from, put a BackgroundWorke r object on it,
along with a ProgressBar.

Using the following code for the form.

Option Strict On
Option Explicit On

Imports System.Componen tModel
Imports System.Threadin g

Public Class LongProcessDial og

Protected Overrides Sub OnLoad(ByVal e As System.EventArg s)
MyBase.OnLoad(e )
BackgroundWorke r1.RunWorkerAsy nc()
End Sub

Private Sub BackgroundWorke r1_DoWork(ByVal sender As System.Object,
ByVal e As DoWorkEventArgs ) Handles BackgroundWorke r1.DoWork
For percentProgress As Integer = 1 To 100
Thread.Sleep(Ti meSpan.FromSeco nds(1.5))
BackgroundWorke r1.ReportProgre ss(percentProgr ess)
Next
End Sub

Private Sub BackgroundWorke r1_ProgressChan ged(ByVal sender As Object,
ByVal e As ProgressChanged EventArgs) Handles
BackgroundWorke r1.ProgressChan ged
Me.ProgressBar1 .Value = e.ProgressPerce ntage
End Sub

Private Sub BackgroundWorke r1_RunWorkerCom pleted(ByVal sender As
Object, ByVal e As RunWorkerComple tedEventArgs) Handles
BackgroundWorke r1.RunWorkerCom pleted
Close()
End Sub

End Class

The BackgroundWorke r1_DoWork event is where all the real work (long
running process) is being done. Within it you call
BackgroundWorke r1.ReportProgre ss to have the dialog update its controls.

The BackgroundWorke r itself handles calling Control.Invoke where needed.

BackgroundWorke r also supports passing a parameter to the background
thread, returning results (including exceptions) as well as cancelling the
background thread!

My Xml Export Sample, uses the BackgroundWorke r within an Outlook form to
perform a long running process.

http://www.tsbradley.net/Samples/VST...rt.Sample.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

>>I will try my best to ask this question correctly. I think in the end the
code will make more sence of what I am trying to accomplish. I am just
not sure of what to search for on the net.

I have a form that has a button. ( this form is a child form of a parent
form ( main form ).
Anway...in this child form I have a button, and if clicked a bunch of
code will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format
when this runs and slowely update the progress bar as each sub runs.

I cant just call the form with fStatus.ShowDia log() cause then all code
stops till this form is closed. So What I am trying is to somehow open
this form in a different thread - in ShowDialog format, so I can continue
to run my code, and as my code runs, update the progress bar on the new
status form created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of
showdialog, until it is complete.

I hope this makes sence.

Below I have code that I think is in the right direction, but I am at a
wall as I have never done any thread processing.

Thanks for your help,

Miro
'==== some command button _click event on a current form. 'which is a
child form of a mdi form.
'Somewhere here change the icon to be hourglass

Dim fStatus As New frmStatus()

'im pulling code out of my butt for this next line here cause ive
never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.ShowDi alog)

Thread1.Start()

'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Threadi ng.Thread.Sleep (2000) 'Will Call some sub instead later

fStatus.pbStat us.Value += 10
System.Threadi ng.Thread.Sleep (2000) 'Will Call some sub instead later
fStatus.pbStat us.Value += 10
System.Threadi ng.Thread.Sleep (2000) 'Will Call some sub instead later

'Somewhere here change the icon to be pointer again.

'close the form
fStatus.Close( )
'im assuming i have to close the thread too or something?
fStatus.Dispos e()
'user should have access to the whole app again.

'==== end of some command button _click event

[Jay B. Harlow]

Miro,

From what I understand reading the code, I cannot have the code I require
in the "form",

It depends on what you mean by "form", do you mean your "main" form, or do
mean your "worker" form.

I would put all the subs in a "worker" form, this "worker" form would
contain a ProgressBar, BackgroundWorke r component, plus any other controls
that may be needed (such as inputs, cancel buttons.

The "main" form would display the "worker" form:

' someplace one the "main" form
Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As
EventArgs) Handles Button1.Click
Using dialog As New WorkerDialog
dialog.ShowDial og()
End Using
End Sub

http://msdn2.microsoft.com/en-us/lib...undworker.aspx
--
Hope this helps
Jay B. Harlow
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:O4******** ******@TK2MSFTN GP05.phx.gbl...

Im using vb express 2005

This is what i needed to get me started.

I will search the web and what I need for Background worker

From what I understand reading the code, I cannot have the code I require
in the "form", i have to move the sub calls to the "background worker"
sub, and call the origina subs in there.

Thanks much!

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:30******** *************** ***********@mic rosoft.com...

>Miro,
Are you using VS 2005 (.NET 2.0) or VS 2002/2003 (.NET 1.x)?

.NET 2.0's new BackgroundWorke r component makes this really easy!

For example create a new dialog from, put a BackgroundWorke r object on
it, along with a ProgressBar.

Using the following code for the form.

Option Strict On
Option Explicit On

Imports System.Componen tModel
Imports System.Threadin g

Public Class LongProcessDial og

Protected Overrides Sub OnLoad(ByVal e As System.EventArg s)
MyBase.OnLoad(e )
BackgroundWorke r1.RunWorkerAsy nc()
End Sub

Private Sub BackgroundWorke r1_DoWork(ByVal sender As System.Object,
ByVal e As DoWorkEventArgs ) Handles BackgroundWorke r1.DoWork
For percentProgress As Integer = 1 To 100
Thread.Sleep(Ti meSpan.FromSeco nds(1.5))
BackgroundWorke r1.ReportProgre ss(percentProgr ess)
Next
End Sub

Private Sub BackgroundWorke r1_ProgressChan ged(ByVal sender As Object,
ByVal e As ProgressChanged EventArgs) Handles
BackgroundWork er1.ProgressCha nged
Me.ProgressBar1 .Value = e.ProgressPerce ntage
End Sub

Private Sub BackgroundWorke r1_RunWorkerCom pleted(ByVal sender As
Object, ByVal e As RunWorkerComple tedEventArgs) Handles
BackgroundWork er1.RunWorkerCo mpleted
Close()
End Sub

End Class

The BackgroundWorke r1_DoWork event is where all the real work (long
running process) is being done. Within it you call
BackgroundWork er1.ReportProgr ess to have the dialog update its controls.

The BackgroundWorke r itself handles calling Control.Invoke where needed.

BackgroundWork er also supports passing a parameter to the background
thread, returning results (including exceptions) as well as cancelling
the background thread!

My Xml Export Sample, uses the BackgroundWorke r within an Outlook form to
perform a long running process.

http://www.tsbradley.net/Samples/VST...rt.Sample.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:%2******* *********@TK2MS FTNGP04.phx.gbl ...

>>>I will try my best to ask this question correctly. I think in the end
the code will make more sence of what I am trying to accomplish. I am
just not sure of what to search for on the net.

I have a form that has a button. ( this form is a child form of a
parent form ( main form ).
Anway...in this child form I have a button, and if clicked a bunch of
code will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format
when this runs and slowely update the progress bar as each sub runs.

I cant just call the form with fStatus.ShowDia log() cause then all
code stops till this form is closed. So What I am trying is to somehow
open this form in a different thread - in ShowDialog format, so I can
continue to run my code, and as my code runs, update the progress bar on
the new status form created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of
showdialog, until it is complete.

I hope this makes sence.

Below I have code that I think is in the right direction, but I am at a
wall as I have never done any thread processing.

Thanks for your help,

Miro
'==== some command button _click event on a current form. 'which is a
child form of a mdi form.
'Somewhere here change the icon to be hourglass

Dim fStatus As New frmStatus()

'im pulling code out of my butt for this next line here cause ive
never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.ShowD ialog)

Thread1.Start()

'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Thread ing.Thread.Slee p(2000) 'Will Call some sub instead later

fStatus.pbSta tus.Value += 10
System.Thread ing.Thread.Slee p(2000) 'Will Call some sub instead later
fStatus.pbSta tus.Value += 10
System.Thread ing.Thread.Slee p(2000) 'Will Call some sub instead later

'Somewhere here change the icon to be pointer again.

'close the form
fStatus.Close ()
'im assuming i have to close the thread too or something?
fStatus.Dispo se()
'user should have access to the whole app again.

'==== end of some command button _click event

[Miro]

I was trying to keep the sub calls in the Main form,
and somehow update the "worker form" from anywhere.

I thought it would be a lot easier to have a modal form but be able to keep
running the code from behind.

I was hoping to make a "generic" "working" form and have the same one called
from everywhere.
Example:
Sub A calls B calls C

Sub D calls B and E
where E calls F

Since B can be called from 2 different original subs' and I would like to
update a "differnet" / "or the same" worker form, I wanted the subs,
themselves take care of the worker form, rather than the worker form take
care of the subs'.

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:A5******** *************** ***********@mic rosoft.com...

Miro,

>From what I understand reading the code, I cannot have the code I require
in the "form",

It depends on what you mean by "form", do you mean your "main" form, or do
mean your "worker" form.

I would put all the subs in a "worker" form, this "worker" form would
contain a ProgressBar, BackgroundWorke r component, plus any other controls
that may be needed (such as inputs, cancel buttons.

The "main" form would display the "worker" form:

' someplace one the "main" form
Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As
EventArgs) Handles Button1.Click
Using dialog As New WorkerDialog
dialog.ShowDial og()
End Using
End Sub

http://msdn2.microsoft.com/en-us/lib...undworker.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:O4******** ******@TK2MSFTN GP05.phx.gbl...

>Im using vb express 2005

This is what i needed to get me started.

I will search the web and what I need for Background worker

From what I understand reading the code, I cannot have the code I require
in the "form", i have to move the sub calls to the "background worker"
sub, and call the origina subs in there.

Thanks much!

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:30******* *************** ************@mi crosoft.com...

>>Miro,
Are you using VS 2005 (.NET 2.0) or VS 2002/2003 (.NET 1.x)?

.NET 2.0's new BackgroundWorke r component makes this really easy!

For example create a new dialog from, put a BackgroundWorke r object on
it, along with a ProgressBar.

Using the following code for the form.

Option Strict On
Option Explicit On

Imports System.Componen tModel
Imports System.Threadin g

Public Class LongProcessDial og

Protected Overrides Sub OnLoad(ByVal e As System.EventArg s)
MyBase.OnLoad(e )
BackgroundWorke r1.RunWorkerAsy nc()
End Sub

Private Sub BackgroundWorke r1_DoWork(ByVal sender As System.Object,
ByVal e As DoWorkEventArgs ) Handles BackgroundWorke r1.DoWork
For percentProgress As Integer = 1 To 100
Thread.Sleep(Ti meSpan.FromSeco nds(1.5))
BackgroundWorke r1.ReportProgre ss(percentProgr ess)
Next
End Sub

Private Sub BackgroundWorke r1_ProgressChan ged(ByVal sender As Object,
ByVal e As ProgressChanged EventArgs) Handles
BackgroundWor ker1.ProgressCh anged
Me.ProgressBar1 .Value = e.ProgressPerce ntage
End Sub

Private Sub BackgroundWorke r1_RunWorkerCom pleted(ByVal sender As
Object, ByVal e As RunWorkerComple tedEventArgs) Handles
BackgroundWor ker1.RunWorkerC ompleted
Close()
End Sub

End Class

The BackgroundWorke r1_DoWork event is where all the real work (long
running process) is being done. Within it you call
BackgroundWor ker1.ReportProg ress to have the dialog update its controls.

The BackgroundWorke r itself handles calling Control.Invoke where needed.

BackgroundWor ker also supports passing a parameter to the background
thread, returning results (including exceptions) as well as cancelling
the background thread!

My Xml Export Sample, uses the BackgroundWorke r within an Outlook form
to perform a long running process.

http://www.tsbradley.net/Samples/VST...rt.Sample.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:%2****** **********@TK2M SFTNGP04.phx.gb l...
I will try my best to ask this question correctly. I think in the end
the code will make more sence of what I am trying to accomplish. I am
just not sure of what to search for on the net.

I have a form that has a button. ( this form is a child form of a
parent form ( main form ).
Anway...in this child form I have a button, and if clicked a bunch of
code will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format
when this runs and slowely update the progress bar as each sub runs.

I cant just call the form with fStatus.ShowDia log() cause then all
code stops till this form is closed. So What I am trying is to somehow
open this form in a different thread - in ShowDialog format, so I can
continue to run my code, and as my code runs, update the progress bar
on the new status form created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of
showdialog , until it is complete.

I hope this makes sence.

Below I have code that I think is in the right direction, but I am at a
wall as I have never done any thread processing.

Thanks for your help,

Miro
'==== some command button _click event on a current form. 'which is a
child form of a mdi form.
'Somewhere here change the icon to be hourglass

Dim fStatus As New frmStatus()

'im pulling code out of my butt for this next line here cause
ive never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.Show Dialog)

Thread1.Start()

'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Threa ding.Thread.Sle ep(2000) 'Will Call some sub instead later

fStatus.pbSt atus.Value += 10
System.Threa ding.Thread.Sle ep(2000) 'Will Call some sub instead later
fStatus.pbSt atus.Value += 10
System.Threa ding.Thread.Sle ep(2000) 'Will Call some sub instead later

'Somewhere here change the icon to be pointer again.

'close the form
fStatus.Clos e()
'im assuming i have to close the thread too or something?
fStatus.Disp ose()
'user should have access to the whole app again.

'==== end of some command button _click event

[Jay B. Harlow]

I thought it would be a lot easier to have a modal form but be able to

keep running the code from behind.

I agree, on the surface a modal form would appear be a lot easier. However
in practice I am sure you will find the BackgroundWorke r component to be
significantly easier. Considering that all the "heavy lifting" has been done
for you. All you really need to do is insert your code in the DoWork event.
Occasionally you may want to, but don't need to, call the BackgroundWorke r
..ReportProgres s method.

I was hoping to make a "generic" "working" form and have the same one
called from everywhere.
Example:
Sub A calls B calls C

Sub D calls B and E
where E calls F

It sounds like a good use for inheritance.

WorkerForm is a base form that has the common routines (B) along with the
progress bar & background worker. The DoWork event handler would call an
overridable method DoWork.

AForm would inherit from WorkerForm overriding the DoWork method calling Sub
A.

DForm would inherit from WorkerForm overiding the DoWork method calling Sub
D.

Sub A would be in AForm, while Sub D would be in DForm.

>I was trying to keep the sub calls in the Main form,
and somehow update the "worker form" from anywhere.

You should be able to use the instance of the Form from the Forms
collection. The caveat is you need to handle the DoWork event to get the
background started...

Personally I find it cleaner to encapsulate (one of the tenants of Object
Oriented development) the "worker" logic all in the "worker form"...

--
Hope this helps
Jay B. Harlow
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:uP******** ******@TK2MSFTN GP04.phx.gbl...

>I was trying to keep the sub calls in the Main form,
and somehow update the "worker form" from anywhere.

I thought it would be a lot easier to have a modal form but be able to
keep running the code from behind.

I was hoping to make a "generic" "working" form and have the same one
called from everywhere.
Example:
Sub A calls B calls C

Sub D calls B and E
where E calls F

Since B can be called from 2 different original subs' and I would like to
update a "differnet" / "or the same" worker form, I wanted the subs,
themselves take care of the worker form, rather than the worker form take
care of the subs'.

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:A5******** *************** ***********@mic rosoft.com...

>Miro,

>>From what I understand reading the code, I cannot have the code I
require in the "form",

It depends on what you mean by "form", do you mean your "main" form, or
do mean your "worker" form.

I would put all the subs in a "worker" form, this "worker" form would
contain a ProgressBar, BackgroundWorke r component, plus any other
controls that may be needed (such as inputs, cancel buttons.

The "main" form would display the "worker" form:

' someplace one the "main" form
Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As
EventArgs) Handles Button1.Click
Using dialog As New WorkerDialog
dialog.ShowDial og()
End Using
End Sub

http://msdn2.microsoft.com/en-us/lib...undworker.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:O4******* *******@TK2MSFT NGP05.phx.gbl.. .

>>Im using vb express 2005

This is what i needed to get me started.

I will search the web and what I need for Background worker

From what I understand reading the code, I cannot have the code I
require in the "form", i have to move the sub calls to the "background
worker" sub, and call the origina subs in there.

Thanks much!

Miro

"Jay B. Harlow" <Ja************ @tsbradley.netw rote in message
news:30****** *************** *************@m icrosoft.com...
Miro,
Are you using VS 2005 (.NET 2.0) or VS 2002/2003 (.NET 1.x)?

.NET 2.0's new BackgroundWorke r component makes this really easy!

For example create a new dialog from, put a BackgroundWorke r object on
it, along with a ProgressBar.

Using the following code for the form.

Option Strict On
Option Explicit On

Imports System.Componen tModel
Imports System.Threadin g

Public Class LongProcessDial og

Protected Overrides Sub OnLoad(ByVal e As System.EventArg s)
MyBase.OnLoad(e )
BackgroundWorke r1.RunWorkerAsy nc()
End Sub

Private Sub BackgroundWorke r1_DoWork(ByVal sender As System.Object,
ByVal e As DoWorkEventArgs ) Handles BackgroundWorke r1.DoWork
For percentProgress As Integer = 1 To 100
Thread.Sleep(Ti meSpan.FromSeco nds(1.5))
BackgroundWorke r1.ReportProgre ss(percentProgr ess)
Next
End Sub

Private Sub BackgroundWorke r1_ProgressChan ged(ByVal sender As
Object, ByVal e As ProgressChanged EventArgs) Handles
BackgroundWo rker1.ProgressC hanged
Me.ProgressBar1 .Value = e.ProgressPerce ntage
End Sub

Private Sub BackgroundWorke r1_RunWorkerCom pleted(ByVal sender As
Object, ByVal e As RunWorkerComple tedEventArgs) Handles
BackgroundWo rker1.RunWorker Completed
Close()
End Sub

End Class

The BackgroundWorke r1_DoWork event is where all the real work (long
running process) is being done. Within it you call
BackgroundWo rker1.ReportPro gress to have the dialog update its
controls.

The BackgroundWorke r itself handles calling Control.Invoke where
needed.

BackgroundWo rker also supports passing a parameter to the background
thread, returning results (including exceptions) as well as cancelling
the background thread!

My Xml Export Sample, uses the BackgroundWorke r within an Outlook form
to perform a long running process.

http://www.tsbradley.net/Samples/VST...rt.Sample.aspx
--
Hope this helps
Jay B. Harlow
.NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net
"Miro" <mi******@golde n.netwrote in message
news:%2***** ***********@TK2 MSFTNGP04.phx.g bl...
>I will try my best to ask this question correctly. I think in the end
>the code will make more sence of what I am trying to accomplish. I am
>just not sure of what to search for on the net.
>
I have a form that has a button. ( this form is a child form of a
parent form ( main form ).
Anway...i n this child form I have a button, and if clicked a bunch of
code will get executed.
I would like to show a Progress Bar / form in modal/ShowDialog format
when this runs and slowely update the progress bar as each sub runs.
>
I cant just call the form with fStatus.ShowDia log() cause then all
code stops till this form is closed. So What I am trying is to
somehow open this form in a different thread - in ShowDialog format,
so I can continue to run my code, and as my code runs, update the
progress bar on the new status form created.
At the end, close the status form, and let the user continue on.
As the status form is open, the whole app is 'locked' because of
showdialo g, until it is complete.
>
I hope this makes sence.
>
Below I have code that I think is in the right direction, but I am at
a wall as I have never done any thread processing.
>
Thanks for your help,
>
Miro
>
>
'==== some command button _click event on a current form. 'which is a
child form of a mdi form.
'Somewhere here change the icon to be hourglass
>
Dim fStatus As New frmStatus()
>
'im pulling code out of my butt for this next line here cause
ive never done this before
Dim Thread1 As New System.Threadin g.Thread(Addres sOf
fStatus.Sho wDialog)
>
Thread1.Start()
>
'pbStatus is a status bar / progress bar
fStatus.pbStatu s.Value += 10 'Increment Push Button
System.Thre ading.Thread.Sl eep(2000) 'Will Call some sub instead later
>
fStatus.pbS tatus.Value += 10
System.Thre ading.Thread.Sl eep(2000) 'Will Call some sub instead later
fStatus.pbS tatus.Value += 10
System.Thre ading.Thread.Sl eep(2000) 'Will Call some sub instead later
>
'Somewher e here change the icon to be pointer again.
>
'close the form
fStatus.Clo se()
'im assuming i have to close the thread too or something?
fStatus.Dis pose()
'user should have access to the whole app again.
>
'==== end of some command button _click event
>