473,770 Members | 1,806 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

File.exists

Hi;

What is the correct syntax for checking for a file's existence based on it's
extension ?

Example:

Imports system.io
Dim path as string = "C:\myDirectory \*.txt"

then

If file.exists(pat h) then
msgBox("File exists")
end if

The *.txt is ignored.
Thanks for your help
--
Gordon
Feb 5 '07 #1
2 1317
Sorry I did not see this post but it answers my question.

question about file exists and wildcards

--
Gordon
"Gordon" wrote:
Hi;

What is the correct syntax for checking for a file's existence based on it's
extension ?

Example:

Imports system.io
Dim path as string = "C:\myDirectory \*.txt"

then

If file.exists(pat h) then
msgBox("File exists")
end if

The *.txt is ignored.
Thanks for your help
--
Gordon
Feb 5 '07 #2
You could use this code:

string file[] = Directory.GetFi les("C:\myDirec tory", "*.txt")

If your variable is not null, then you have your files :).

I hope it helps.

--
Regards,
Robson Siqueira
Enterprise Architect
"Gordon" <Go****@discuss ions.microsoft. comwrote in message
news:5B******** *************** ***********@mic rosoft.com...
Hi;

What is the correct syntax for checking for a file's existence based on
it's
extension ?

Example:

Imports system.io
Dim path as string = "C:\myDirectory \*.txt"

then

If file.exists(pat h) then
msgBox("File exists")
end if

The *.txt is ignored.
Thanks for your help
--
Gordon

Feb 5 '07 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

15
114212
by: Geiregat Jonas | last post by:
is using if(open("file",O_EXCL) != -1){ printf("File does exists")}else{printf("file does not exists"); } a good way of checking if a file exists or not, if not how should I do it ?
3
26269
by: StGo | last post by:
How can i read/write file's custom attributs(like subject,author...) in C#??? Thanks :))
18
3182
by: Dan | last post by:
I have code like the following to test for existence of a file. I know the file is there, but File.Exists returns FALSE. The problem appears to be that the file is in a directory beneath "My Documents". When I move it to a directory directly under the root, File.Exists returns TRUE. So I tried using FileIOPermission to give me rights to read it, but still no luck. Any suggestions? Thanks... FileIOPermission f = new...
2
9389
by: Zeno Lee | last post by:
I'm using File.Exists to test a file on my C: drive. My program was strongly named and had caspol -af run on it to allow it to run from the network. There are 3 ways I am doing this: 1) Run from my C: drive, File.Exists works properly and says C:\Temp\test.txt exists 2) Run from my H:\ (network) drive, File.Exists says the file doesn't exist. 3) Run from Visual Studio debugger, with project configuration property
2
14409
by: Chris Fink | last post by:
I am using the System.IO.File class to determine if a file exists on a network share. The File.Exists method keeps returning false, even though the file does exist. The MSDN documentation states, "If the caller does not have sufficient permissions to read the specified file, no exception is thrown and the method returns false regardless of the existence of path."
4
2319
by: DEWright_CA | last post by:
I am trying to see if a file exists in a virtual directory, and if so run a method. I try doing File.Exists and the method runs but the file isn't there. Is there a web version of File.Exists or some otherway to get this type of functionality without too much heartache??? Thanks -- D @ premierdata
52
7543
by: paytam | last post by:
Hi all Can anyone tell me how can I check that a file exist or no.I mean when you use this commands FILE *fp; if(!fp) //Could not open the file doen't show why it can not open it,may be the file doesn't exist.Now tell me what should I do! Thanks
17
8029
by: Peter Duniho | last post by:
I searched using Google, on the web and in the newsgroups, and found nothing on this topic. Hopefully that means I just don't understand what I'm supposed to be doing here. :) The problem: I am trying to use the SaveFileDialog class to get a filename, which is subsequently opened for writing (write access, read sharing, but using read/write sharing doesn't make the problem go away anyway). Sometimes, on the statement where I...
12
4570
by: snow | last post by:
Hi All, I noticed if file path has a white space, for example "C:\my document \test.txt", the function File.Exists(filePath) always return false in release mode. How could I make this function work for the file which is located in a direcotry with a white space? Thanks!
7
19117
by: sprash | last post by:
Newbie question: I'm trying to determine if a file physically exists regardless of the permissions on it Using File.Exists() returns false if it physically exists but the process does not have the necessary permissions. One hack could be to check for length and that would throw a FileNotFoundException ...but there is got to be a better way!
0
9617
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9454
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10257
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
1
10037
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8931
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7456
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
5354
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
4007
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
3609
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.