C# Discussion Boards - CodeProject

Re: Error message

Gareth H8-Aug-08 6:22

Gareth H

8-Aug-08 6:22

netJP12L,

I don't think you need to call sw.Close() since it is in a using block. Though, i might be wrong!

Regards,
Gareth.

(FKA gareth111)

Re: Error message

hammerstein058-Aug-08 6:30

hammerstein05

8-Aug-08 6:30

Are you allowed to write to the path? Do you have permissions, where are you trying to write to?

And, sw doesn't need to be closed, a using block will automatically call the Dipose method on an object that implements IDispose, StreamWriter does.

Re: Error message

netJP12L8-Aug-08 6:39

netJP12L

8-Aug-08 6:39

Yes, I do have permissions. I am creating folders, subfolders and file dynimacally and writing to the file. Even removing of sw.close or using statments doesn't help. Is there anyway i can find out which thread is using the file.

Re: Error message

astanton19788-Aug-08 6:46

astanton1978

8-Aug-08 6:46

ProcessExplorer from ~~sysinternals~~ microsoft will show you what has handles open on a file.

http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx[^]

Re: Error message

Wendelius8-Aug-08 6:46

Wendelius

8-Aug-08 6:46

Hi,

You'll find lots of helpful tools from here http://technet.microsoft.com/en-us/sysinternals/default.aspx[^]

Mika

Re: Error message

netJP12L8-Aug-08 7:16

netJP12L

8-Aug-08 7:16

Thanks for answering guys, So far no lucky but what a funny thing i just noticed is that when i run the function to write to the file it throws exception related to file is being used by other process but when i run it again it actually writes ....what's going on I got no idea. Are my codes running faster than CPU ...;)

Re: Error message

Wendelius8-Aug-08 7:28

Wendelius

8-Aug-08 7:28

Hmm,

there may be several reasons.

Do you still have call to the Close-method in the end of using block. I suggest that you keep it.

Another thing. Check from your project properties / debug tab, is "Enable the Visual Studio hosting process" checked? If it is, what happens if you uncheck it and run the application again?

Mika

Re: Error message........Thankssssssssssss

netJP12L8-Aug-08 8:44

netJP12L

8-Aug-08 8:44

Exactly, you got the cure for my app problem.....before when i used to run my app in debug mode i was noticing this myapp.vshost.exe started...since i uncheck it works like charm.... Feel like i am on the safe planet....gonna giving u 5 Wink | ;)

Re: Error message........Thankssssssssssss

Wendelius8-Aug-08 8:46

Wendelius

8-Aug-08 8:46

You're welcome Smile | :)

Mika

How to run DOS attrib commands like +S, +R in my c# project?

Member 28376158-Aug-08 5:20

Member 2837615

8-Aug-08 5:20

I want to set the attrib of any file and folder using C#.NET button click event.
(As like in DOS: "attrib C:\test +S")

I want to run above DOS command with my C#.NET button click.

Re: How to run DOS attrib commands like +S, +R in my c# project?

Manas Bhardwaj8-Aug-08 5:48

Manas Bhardwaj

8-Aug-08 5:48

File.SetAttributes("textfile1.txt", FileAttributes.ReadOnly);

Just a suggestion for future!!! Wink | ;)

Try to Google the question you are posting. I believe, most of the times you will get get the answer there itself.

Re: How to run DOS attrib commands like +S, +R in my c# project?

Member 28376158-Aug-08 6:21

Member 2837615

8-Aug-08 6:21

Thanks for your solution.
It works fine.
Can you please tell me about “attrib C:\test +s +h”. both attrib simultaneously.

Re: How to run DOS attrib commands like +S, +R in my c# project?

Ravi Bhavnani8-Aug-08 6:35

Ravi Bhavnani

8-Aug-08 6:35

Use any combination of the FileAttributes[^] flags.

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

Re: How to run DOS attrib commands like +S, +R in my c# project?

Manas Bhardwaj8-Aug-08 6:40

Manas Bhardwaj

8-Aug-08 6:40

Member 2837615 wrote:
Can you please tell me about “attrib C:\test +s +h”. both attrib simultaneously.

You will need to write it in two statements; specifying the attributes you want.

Re: How to run DOS attrib commands like +S, +R in my c# project?

Paul Conrad8-Aug-08 8:31

Paul Conrad

8-Aug-08 8:31

Read up on how to use the SetAtributes method. A quick google search shows how to use a combination of attributes in one method call.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Re: How to run DOS attrib commands like +S, +R in my c# project?

umbrella_yang9-Aug-08 5:33

umbrella_yang

9-Aug-08 5:33

The Class of Process is used to execute the command of DOS.

This class provide a Filed to set attrib.

Read from bmp file

krinaljariwala8-Aug-08 4:51

krinaljariwala

8-Aug-08 4:51

Hi to all,
I need to read bitmap file which is basically scanned sheet like answers sheet.
So tell me if anyone knows.
Its urgent.

Re: Read from bmp file

Manas Bhardwaj8-Aug-08 4:55

Manas Bhardwaj

8-Aug-08 4:55

krinaljariwala wrote:
I need to read bitmap file which is basically scanned sheet like answers sheet

Do you want to read it as image or extract the text from it?
If latter is the case, this should work:

FileStream fs = File.OpenRead("Holiday.bmp");
           byte[] data = new byte[fs.Length];
           fs.Read(data, 0, data.Length);

           MemoryStream ms = new MemoryStream(data);
           Bitmap bmp = new Bitmap(ms);

Re: Read from bmp file

krinaljariwala8-Aug-08 5:05

krinaljariwala

8-Aug-08 5:05

Hi,
i have tried this but i have scanned an answer sheet of entrance test exam paper, n stored as image file so i want to read at which answer's line its option is selected.The image includes options like you have to choose one answer from 4.So i want find which option is selected.

Re: Read from bmp file

SomeGuyThatIsMe8-Aug-08 5:48

SomeGuyThatIsMe

8-Aug-08 5:48

studying would probably be easier, but you're going to need some kind of really cool OCR or image recog software, i've seen some articles on CP about it but cant remember what i was looking for at the time, i think one compared the color data of each pixel to try to find patterns, it may have even been looking for things that were circled. handwriting recognition software may help too.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: Read from bmp file

J4amieC8-Aug-08 5:49

J4amieC

8-Aug-08 5:49

Manas Bhardwaj wrote:
If latter is the case, this should work:

former, not latter.

c# port forwarding

VrIgHtEr8-Aug-08 4:06

VrIgHtEr

8-Aug-08 4:06

Hi I want to write a program to forward incoming tcp connections on port 22 on my computer to another address on the network (which happens to be 192.168.37.20) on the same port 22. Does anyone have any suggestion how I can do this?

Re: c# port forwarding

Harvey Saayman8-Aug-08 4:20

Harvey Saayman

8-Aug-08 4:20

NAT

why must it be a program?

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Re: c# port forwarding

VrIgHtEr8-Aug-08 11:12

VrIgHtEr

8-Aug-08 11:12

I need to write a simple windows service that will automatically forward connections on port 22 (SSH) to the other address. And i have found no easy way to do this in windows, nor have i found a freeware program that can be installed as a system service

Re: c# port forwarding

Harvey Saayman8-Aug-08 20:22

Harvey Saayman

8-Aug-08 20:22

there is a way to do this that is built into windows as far as i know... its called NAT or Network Address Translation

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.