I would like to make a simple application that allows to make a file or if it already exists displays a error. This is the code a use. But the problem here is that it does not always shows the error. Code:
View 2 Replies
Ok I am making an RPG that is checking for collisions whenever the user is walking...Basically i made an array of points in which the user is not allowed to access and if they do try to access them it will not walk...
Public Class cityshop2010
Dim abletomove As Boolean = True
Dim moveto As Point
Dim badpoints(1) As Point
[code]....
with that code there I want to be able to say badpoints(0-50) or badpoints (0 to 50) whatever... or even badpoints(*) for any badpoint....How do i make it check all the badpoints?
I making an "sign in" application for checking email address with username and password as input.As output it will show me msgbox with content "Your email and password are correct!" or Not.There is a code:
Code:
Imports System.Net.Mail
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code].....
I making an "sign in" application for checking email address with username and password as input.As output it will show me msgbox with content "Your email and password are correct!" or Not.
[Code]...
I making an "sign in" application for checking email address with username and password from textboxes,and receiving message do username and password are correct or not.There is a code & image:
Imports System.Net.Mail
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Declare variables
[code].....
Is there any better performance by checking for a true value like this:
[CODE]..............
Than like this:
[CODE]..............
Is there anyway of searching for a file (shortcut file) on the desktop in VB? I've tried :
If My.Computer.FileSystem.FileExists("DesktopMYFILE.lnk")
doesnt return anything
If My.Computer.FileSystem.FileExists("DesktopMYFILE.exe")
doesnt return anything
[Code]...
can't see why my coding does not work. The following coding does give me a message if the file is open in notepad, but it doesn't if the file is open in word or excel?
[Code]....
I am writing a program to play sound effects in a theatre.file system should belike this:Any path on the computerFilenamefilename.xmlAny path on the computerFilenameSounds
View 8 RepliesI am trying to write(what I thought would be a simple piece of code. I was wrong.
What I am trying to do is to get an application to check if a file exists, However, I have it wrong as the file obviously does exists, but when I run the application it tells me it does not.
Imports System.IO
Public Class check
Dim checkfile As New FileInfo("C:\HelloWorld")
[Code].....
I'm testing out the use of shells and I want to know if theres a way to check if the shell is exited.
[Code]...
I have got the following code to check whether a file is open or not as I want to ignore it if it is, but it doesnt seem to be working.
IF IO.File.GetAttributes(f) And IO.FileAttributes.ReadOnly) = IO.FileAttributes.ReadOnly Then
im trying to make code to check if a file with the same name exists twice in the same dir one with .dds and one with .veh file extentions and if they do put in a listbox but if only one exists then it puts it in another listbox i have made code to filter .dds in to one listbox and .veh in another but i dont know how to make the "check" if they are both there
this is the code i have to split them at the mo
For Each files In dir
Dim path() As String = files.Split("\")
Dim chunk As Integer = path.Length
[Code]....
but i wanted the Else for the .dds files that dont have the matching .veh file
on my program i have an activation in it and in order to activate the program you need to enter a code that is stored in the settings. so i was looking through my computer and i found the programs config file. and so I opened it and i found all of the codes for the activation. I need to find out how to make the file so the user doesn't have access to it and then how to move it to a more hidden place in the C: drive.
View 3 RepliesI know all about File.Exists in VB. I know that it should work, but in my situation, it is not. Currently our site builds an image string based on the user id, then goes to our image folder on the server and retrieves it. If the image doesn't exist, it displays the broken image icon. I tried implementing the File.Exists method using the path and image name it was already using to pull the file. Even if the file exists, if returns false. I have read other posts saying that it could be a security issue, but it seems to me that if it can pull the image, it should be able to check and see if it exists. [Code]
View 1 Replieshow to let VB check if a file exist on the server with the name provided before uploading that file.show a message and restart the application without uploading if a file exist with that name.
View 16 RepliesI haven't used System.IO before, and I'm a little stuck.I need to check if a file exists, for example C:Documents and SettingsverraineDesktopSURNAME Firstname v1.docx, if this file exists the filename has to become v2, and so on. Usually there will only be a v1, but in the case that a clients position changes we have to be able to save the new version without overwriting the old one.
How would I be able to do this efficiently? I'm uncertain to say the least. Because, if I manage to find out how to save the file as a different number, that's alright, but if that next number exists as well? I can only think of ways to do this that require a lot of code.
If I was to upload one or more file(s) to a server, is there anyway to check that / those file(s) against the file(s) stored on my computer without downloading the file(s) to check against the original file(s)using VB.Net?This would need to be done in a recursive fashion from a parent folder downwards, the folder being of the end-users choosing.
View 6 RepliesTo find version of an exe, I use this code
Dim FileProperties As FileVersionInfo = FileVersionInfo.GetVersionInfo(Application.ExecutablePath)
Textbox1.Text = FileProperties.FileVersion
How come we find a version of an exe that's uploaded in FTP? I need the version of an exe that's already there in FTP. I know the path where the exe file is saved in FTP.
i face a problem in checking file condition.I wish to create a program that can check the condition file continuously while the program is running.[code]If I suddenly remove the file, it cant show a message File not Exist or if I suddenly receive a file and place at the folder,it cant show me a message File already Exist.How can I modify my code to continuously checking the file condition while the program is running.
View 1 Repliesi am making a game in which the file stream gets a certain file(lets say a.txt) and it reads it, if it has certain values stored in the file it returns boolean(this is a function), then a sub procedure writes to the file using a streamwriter and a filestream using the same file. I am having problems, sometimes visual basic says that another process is using the file, this is before i closed the filestreams and the streamwriter or streamreader, then it gives me errors when i close the files, it tells me that it can't access a file that is already closed, i thought the filestream gets the file and lets the streamreader or streamwriter read or write to the filefound out the problem?
View 2 RepliesI'm trying to download files using the Net.WebClient call to DownloadFile
Using client As New Net.WebClient()
[code...]
Is there a polite way I can ask for the file instead of calling DownloadFile, and handling the exception ?
I get an UnautorizedAccessException running this code:
string[] fileList = Directory.GetFiles(strDir, strExt);
The exception occurs in c:usersusernameappdata How can I check if I have access permission (to list and read files) ?
how can i check if the file exist in the absolute path. for example i have images in the absolute path from which i have to check if the image exits I can do it from FILE.EXIST(path)this method is not working for absolute path, even if the file exits its is showing the file doesnt exist.
View 3 RepliesI have a datagridview with a bunch of columns, one of them being an Image type (DataGridViewImageColumn).What I want to do is basically check to see what the file path of the image in one of those cells is.
I've tried doing like:
If (DataGridView1.Item(7, Number).Value.ToString = "some path" then
'do stuff here
End if
but it always says DataGridView1.Item(7, Number).Value.ToString is just "System.Drawing.Bitmap", instead of the actual file path of the image in the cell.I've also tried the above, without the .ToString, but I get an error saying System.ArgumentException was unhandled (Argument 'Prompt' cannot be converted to type 'String'.)
I have been on MSDN about this and searched but it's not quite telling me what I'm after. I've extracted a list of file names from an Excel spreadsheet and want to check whether they all exist in a directory which a user can select in a text box. It feels like I'm nearly there with it but currently my listbox is displaying everything, I want it to just show the files that are missing. I'm a beginner so I'm not exactly sure if I'm even telling it to compare the two things properly, I've tried a couple of ways of checking if a file exists but neither seem to work.[code]
View 1 RepliesWith all the smarts of actually loading images being done by the .net framework, seems like I shouldn't have to repeat it all in my code by checking for magic numbers, or using a hack like this:[code]Am I missing something obvious, like System.Drawing.IsImage(stream)?
View 1 RepliesI would like to know if there is any opportunity in VB.Net to use atomic operations. Or Maybe there is an opportunity to check if a file is allready in use or opened.The reason why I ask is because I got a little application that I would like to log its actions. As the applications uses threads the method for writing the log file sometimes is trying to open the log-file more than once which leads to an exception.
View 3 RepliesCan I set this function so that if the local settings.txt exists, it will NOT be overwritten unless the mapped file is newer?
If IO.File.Exists("C: empsettings.txt") = False Then
IO.File.Copy("K: empsettings.txt", "C: empsettings.txt")
ElseIf IO.File.Exists("C: empsettings.txt") = True Then
[Code]...
Currently modifying a program that is being used by several staff. Each time they restart it, it starts the latest build.
I have a settings.txt file that is needed for the latest build(not on all pc's yet, original version has the settings written in the code) and updated as needed.
If local PC doesn't have settings.txt, it is copied, if it does have settings.txt it gets overwritten by the mapped copy on each run.
Wanting to let users keep their 'personalized' local settings.txt, unless I add a new feature to the program that requires a change to the mapped settings.txt file.
I have a textbox which has a numeric value that changes - would it be possible to check if that value matches two numeric values in a text file? and if the value matches then to display some text in a label? The textfile only has fields displayed like so
Horizontal 55
Vertical 16
So I would only need to check if the numeric field in textbox matches the two numbers in the second column. In the past I have use System.IO.File to create/delete/append to files but I havent come across anything like contains.
