C# Discussion Boards - CodeProject

How to keep a progress bar running when the form is busy with some file operation

d_sinha11-Jun-07 3:57

11-Jun-07 3:57

Hi all,

I have a form which does some TIME TAKING file operations. During this I want the progress bar to run. But the whole form hangs as the machine gets busy with file operations.

I tried to use threading as well but dint work.
Can anyone help please .

Thanks,
Deepa

Re: How to keep a progress bar running when the form is busy with some file operation

Giorgi Dalakishvili11-Jun-07 4:01

Giorgi Dalakishvili

11-Jun-07 4:01

You should use multithreading. Have a look at BackGroundWorker component in MSDN. It has quite a good example

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Re: How to keep a progress bar running when the form is busy with some file operation

d_sinha18-Jun-07 3:10

d_sinha

18-Jun-07 3:10

Hey thanks, It worked.

It even worked with threading. The catch was to make the thread to work in background

t.IsBackground=true;

- Deepa

Thanks,
Deepa

Re: How to keep a progress bar running when the form is busy with some file operation

Martin#11-Jun-07 4:03

Martin#

11-Jun-07 4:03

Hello,

I would definitelly recommend the threading approach, allthough it didn't completely solve your problem.
Additionally you could try to call "Application.DoEvents()".

Hope it helps!

All the best,

Martin

Re: How to keep a progress bar running when the form is busy with some file operation

Hesham Yassin11-Jun-07 6:41

Hesham Yassin

11-Jun-07 6:41

you need to activate the method using Threads :

<br />
private void Method1()<br />
{<br />
     Thread t1 = new Thread(ThreadStart(Method2));<br />
     t1.Start();<br />
}<br />
<br />
private void Method2()<br />
{<br />
     // Do some work!<br />
     // Update progressBar<br />
}<br />
<br />

to update the progressBar, you need to invoke another method because of the asynchronous call to Method2() what you need to do is thaat:

<br />
if(progressBar.InvokeRequired)<br />
{<br />
     progressBar.Invoke(Method3);<br />
}<br />
else<br />
{<br />
     // Update progressBar<br />
}<br />
<br />

Method3() Bans Cross thread D'Oh! | :doh:

how to disable microsoft windows applications

Bahaa Hany11-Jun-07 3:07

Bahaa Hany

11-Jun-07 3:07

Hi im making a client server program so i want to disable some applications in windows like (access internet, see my network places etc) from the client until he become authenticated. So is that possible or what ??? D'Oh! | :doh:

Thanks for ur help Smile | :)

Eng/Bahaa

Re: how to disable microsoft windows applications

Not Active11-Jun-07 3:19

Not Active

11-Jun-07 3:19

You want to disable access to internet and network places from within your application? Then don't call any function that uses it until authernticated.

only two letters away from being an asset

Re: how to disable microsoft windows applications

Bahaa Hany11-Jun-07 3:25

Bahaa Hany

11-Jun-07 3:25

how can i call them in the application after authentication

Re: how to disable microsoft windows applications

Not Active11-Jun-07 3:37

Not Active

11-Jun-07 3:37

only two letters away from being an asset

Converting SQL Report to PDF

khuzwayom11-Jun-07 2:41

khuzwayom

11-Jun-07 2:41

Hi All.

Would you please help me, I want to write an application that will
convert a report created with SQL Server Reporting Services to PDF and than email it as an attachement. How do I do this.

Thank You
khuzwayom

khuzym

Re: Converting SQL Report to PDF

Not Active11-Jun-07 3:16

Not Active

11-Jun-07 3:16

http://www.codeproject.com/sqlrs/PDFUsingSQLRepServices.asp[^]

only two letters away from being an asset

Re: Converting SQL Report to PDF

khuzwayom11-Jun-07 3:37

khuzwayom

11-Jun-07 3:37

Thank you, I will try your code.

khuzym

Reference 1st cell of first row of dataset ?

digsy_11-Jun-07 1:55

digsy_

11-Jun-07 1:55

I have a dataset called ReturnedDataset.

It contains 1 row with 1 cell - how do I reference it ?

In vb.net I would do something like - DataSet21.issues(0).title but I cant seem to find the correct syntax for c#.

Thanks

Re: Reference 1st cell of first row of dataset ?

Not Active11-Jun-07 2:01

Not Active

11-Jun-07 2:01

DataSet.Table[0].Rows[0][0]

Table 0, Row 0, Cell 0

only two letters away from being an asset

Re: Reference 1st cell of first row of dataset ?

Chintan.Desai11-Jun-07 3:04

Chintan.Desai

11-Jun-07 3:04

DataSet.Table["TableName"].Rows[0][0] Smile | :)

Regards
Chintan
www.visharadsoft.com
(Nothing is so purify as KNOWLEDGE)

Re: Reference 1st cell of first row of dataset ?

Not Active11-Jun-07 3:11

Not Active

11-Jun-07 3:11

Yes, and if you want to go even further it could be

DataSet.Table["TableName"].Rows[0]["ColumnName"]

or if strongly typed

DataSet.TableName.Rows[0].ColumnName

So your point was?

only two letters away from being an asset

Re: Reference 1st cell of first row of dataset ?

Colin Angus Mackay11-Jun-07 4:15

Colin Angus Mackay

11-Jun-07 4:15

Mark Nischalke wrote:
So your point was?

Probably this: "I can code better than you can. Nya nya, nyi nya nyaaaa!" Roll eyes | :rolleyes:

Upcoming events:
* Glasgow: Mock Objects, SQL Server CLR Integration, Reporting Services, db4o, Dependency Injection with Spring ...
* Reading: Developer Day 5

Never write for other people. Write for yourself, because you have a passion for it. -- Marc Clifton

My website

Re: Reference 1st cell of first row of dataset ?

Not Active11-Jun-07 4:33

Not Active

11-Jun-07 4:33

If it were you I'd admit it. Cry | :((

only two letters away from being an asset

Re: Reference 1st cell of first row of dataset ?

Colin Angus Mackay11-Jun-07 7:16

Colin Angus Mackay

11-Jun-07 7:16

C'mon! You're a Code Project MVP! You don't get that for nothing. It means you are great at what you do and you are great at spreading the greatness. (You don't think I over did the "great" thing there, did you?)

Re: Reference 1st cell of first row of dataset ?

Not Active11-Jun-07 7:24

Not Active

11-Jun-07 7:24

You're right, I am great at spreading something, but it usually comes from the posterior of a bull. Poke tongue | ;-P

only two letters away from being an asset

Re: Reference 1st cell of first row of dataset ?

Colin Angus Mackay11-Jun-07 7:28

Colin Angus Mackay

11-Jun-07 7:28

You work on a farm! Gosh! You find Software Developers in every corner of society. Big Grin | :-D

MsWord Component

azmoodeh11-Jun-07 1:28

azmoodeh

11-Jun-07 1:28

Hi,
Who can help me to find a .Net Component that works like the MsWord(mean that it is a Advanced editor) and could load and save the .DOC files ?

best regards
A.Azmoodeh

Exception in Release mode??

zubair_ahmed11-Jun-07 0:49

zubair_ahmed

11-Jun-07 0:49

A block of code is giving exception in Release mode--outside VS, but not in debug mode. Can you please tell what is the problem with my this method? How can i track the exception? Its running properly in the debug but i don't know what goes wrong in the Release mode.

int i = 0;
int res = BAD_RESULT;

try
{
vector<dataaccess::tagpartdiameterrecord> parts;

if (m_pDoc->doGetPartDiameters(parts))
{
for(i = 0; i < parts.size(); i++)
{
if (parts[i].PartDiameterLUT < 10.0 ) PartDiameterLUT[i]= 10.0;
if (parts[i].PartDiameterLUT > 120.0) PartDiameterLUT[i]= 120.0;
if (parts[i].RetractDistInches < 0.0) RetractDistInchesLUT[i]= 0.0;
if (parts[i].RetractDistInches < 40.0) RetractDistInchesLUT[i]= 40.0;
if (parts[i].JointTypeLUT < 0) JointTypeLUT[i]=(JointMode)0;
if (parts[i].JointTypeLUT > 3) JointTypeLUT[i ]=(JointMode)0 ;
}

res = GOOD_RESULT;
AfxMessageBox("GOOD_RESULT");
}
else
{
AfxMessageBox("Part Diameter Data could not be loaded1");
return BAD_RESULT;
}
}
catch(...)
{
AfxMessageBox("HERE IS THE EXCEPTION THAT IS THROWN");
return BAD_RESULT;
}

return res;
} // LoadDiameterLUT

Z.A

Re: Exception in Release mode??

Christian Graus11-Jun-07 1:03

Christian Graus

11-Jun-07 1:03

Dude - this is the C# forum. This code is C++/MFC.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Exception in Release mode??

Luc Pattyn11-Jun-07 1:07

Luc Pattyn

11-Jun-07 1:07

zubair_ahmed wrote:
catch(...)
{
AfxMessageBox("HERE IS THE EXCEPTION THAT IS THROWN");
return BAD_RESULT;
}

Dude - if you catch an exception look at it instead of replacing it by
a meaningless constant string.

Luc Pattyn

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