Re: Get correct case of Filename - C# Discussion Boards

DanielWehrle5-Mar-10 4:05

DanielWehrle

5-Mar-10 4:05

Not for windows but for Linux. And I comunicate by NFS with a Linux system.

Calla4-Mar-10 21:29

Calla

4-Mar-10 21:29

Windows isn't case sensitive regarding file names.
Why do you need to find out the "correct" casing?

David Skelly5-Mar-10 1:41

David Skelly

5-Mar-10 1:41

Calla wrote:
Windows isn't case sensitive regarding file names.

Windows isn't but c# string comparison is. "abcd" is not the same as "ABCD", so if you are going to compare file names in your program, you have to get the correct case or it won't work.

AspDotNetDev5-Mar-10 2:08

5-Mar-10 2:08

"ABCD".ToLower();

David Skelly5-Mar-10 5:51

David Skelly

5-Mar-10 5:51

Well, golly gee, Martha, what wonderful things they can do nowadays. Who would have thought of that?

Dave Kreskowiak5-Mar-10 7:53

Dave Kreskowiak

5-Mar-10 7:53

Check out the overloads of String.Compare. You've got all kinds of options, including ignoring case, when comparing strings.

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Dave Kreskowiak
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Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Luc Pattyn5-Mar-10 1:42

Luc Pattyn

5-Mar-10 1:42

other operating systems may have case-sensitive file systems, Unix does.

When you want to use your app on such system, or you want to store data on a non-Windows external storage system, the app needs to take care of casing.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

AspDotNetDev5-Mar-10 2:12

5-Mar-10 2:12

One does have to wonder, though, how the app would get an incorrectly-cased file name. I'd expect the user to enter in the filename with the correct case on an OS that could have two filenames that are the same aside from case. If it was a file created by the app, I'd expect the app to already know the filename.

Also, C# is rarely used on Unix systems (though, due to Mono, it can be used there). I wonder if the OP actually needs this functionality, or if the question was asked out of curiosity. Only in very strange instances do I see this as useful.

Luc Pattyn5-Mar-10 2:19

Luc Pattyn

5-Mar-10 2:19

aspdotnetdev wrote:
I'd expect the user to enter in the filename with the correct case

Most of the time the problem is the app runs on Windows and doesn't mind casing errors until you issue a file command to a Unix-based file server. Typically it isn't a file name clash, it is a no-such-file problem.

one way of getting in trouble is by having hard-coded extensions, say in OpenFileDialog filters, or in a Path.ChangeExtension() call.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

David Skelly5-Mar-10 6:01

David Skelly

5-Mar-10 6:01

It's even more complicated than that. Unix sees myfile.txt and MyFile.txt as two different files and lets you create these two files in the same directory, side by side. Windows doesn't like that and won't let you do it.

Most C# programs probably never have to interoperate between Windows and Unix. It's much more of a problem with something like Java.

DanielWehrle5-Mar-10 4:04

DanielWehrle

5-Mar-10 4:04

I communicate to a case sensitiv Linux by using a NFS Server. So some incomming calls with wrong case gives errors on Linux side.

AspDotNetDev4-Mar-10 21:40

4-Mar-10 21:40

This seems to work:

string[] files = Directory.GetFiles(@"C:\", "thefile.txt");
FileInfo f = new FileInfo(files[0]);
MessageBox.Show(f.FullName);

Combobox + Treeview Height?

Pawan Kiran4-Mar-10 19:11

Pawan Kiran

4-Mar-10 19:11

Hi
I have treeview1 inside the Combobox1

when i use Combobox1.DroppedDown=true;

It is not working..

(If it is a normal Combobox, working fine).

Regards
Pawan.

How to Rearrange Tiff pages?

Member-42540444-Mar-10 19:09

Member-4254044

4-Mar-10 19:09

Hello All,
I have a query:

Suppose I have a Multi-page Tif/Tiff (Single Tiff file with multiple pages) and the pages are from Top to Down manner, as any normal document will be.
What I want to do is to rearrange the pages in a grid of axb pages and again save the document as a single page Tif/Tiff format.

For example, suppose I have a Tif/Tiff file that contains 6 pages, arranged vertically 1 to 6. Now I want to arrange these 6 pages(each page of size 8.5x11 in) so that the first 3 pages come horizontally in one row, and the next 3 pages come horizontally in the second row. After this is done, the resulting image is stored as a single page Tif/Tiff file(whose size would definitely be larger as it now contains 6 pages).

Can anyone help? Some sample code will be of grate help to me.
Thanks in advance

Re: How to Rearrange Tiff pages?

MumbleB4-Mar-10 23:39

MumbleB

4-Mar-10 23:39

Have you tried google? See here[^]! This might help.

Excellence is doing ordinary things extraordinarily well.

Re: How to Rearrange Tiff pages?

Member-42540445-Mar-10 1:39

Member-4254044

5-Mar-10 1:39

Well it seems to be a good class, containing so many functionalities of Tiff, but i can't figure out which method can be utilized to serve me? there are streams and arrays of streams, but I'm sort of confused among usage of them. Can you help a little?

brushes with opacity

VCsamir4-Mar-10 19:00

VCsamir

4-Mar-10 19:00

Hi friends $ experts!!

i need a small help from you'll!! i am working on eraser brush.. i have created a path gradient brush with center color as white and surround color as transperant now i apply the brush on the image. now once i say save this brush the white color should become transparent wheras the transperant color should blend with the image.. i am using this brush so as to get the feather effect.

i have tried with the composite mode as source copy but the tranperant blending effect goes.. can any show me a way to solve my problem?

Thanking in advance

Regards
Samir

how to put a timer counter in my software that counts starting from the day installed?

CoderForEver4-Mar-10 18:04

CoderForEver

4-Mar-10 18:04

Hey my friends ... I have one application done in C# .. but i want to give it for my customers as a trial version (I want it to count from the day it installed up to 30 days) ... But if i use DateAndTime class ... I think if they change the date and time ... so that i can be faked .... can any body help me with this problem .... or how can i get the real date even if they change it ... i.e like other softwares do ... just count from the day it is installed ....

Thank you a lot

Re: how to put a timer counter in my software that counts starting from the day installed?

PIEBALDconsult4-Mar-10 18:17

PIEBALDconsult

4-Mar-10 18:17

Any or all of:

0) I wouldn't bother.

1) Store the date and time of install or first use and then calculate the elapsed time when it starts up.

2) Have it access a website to get the current date and time rather than use the system clock.

3) Have it access your site (phone home) to determine the date and time and elapsed time.

Re: how to put a timer counter in my software that counts starting from the day installed?

AspDotNetDev4-Mar-10 18:32

4-Mar-10 18:32

One could also use Environment.TickCount to infer that the time has been changed or the computer has been restarted. If tick count and date are stored together at each use, that can be compared against a later reading. This would not be perfect detection (it would be easy to get around), but it could be used to detect the types of modifications that many users would make.

But, it's probably too much work. Doing a simple time check to a remote server would be enough to deter most users from subverting the trial.

Also, there are other forms of trials. For example, usage could be limited based on how long the application is left open. This could be more easily tracked than the amount of time it's been installed.