I have a weird behavior when trying to copy a file with System.IO.File.Copy. The file never gets copied. More than that, the call doesn't generate an exeption!
I am using VB.NET, Framework 3.5. I'm trying to copy in C:Temp and I do have the privileges. Or at least I used to...
i got to do a program in VB.NET that copies a file from a pc to a usb device. I use the method System.IO.File.Copy(FileToCopy, NewCopy) in which i have to specify the destination path. The problem is that when i change pc the destination can change: for example in my pc i read my USB pendrive o G: and on my friend pc i read the usb pendrive on E:. How can i solve that? May i specify a general path to my USB giving it a name or anything similar?
View 5 RepliesI'm writing a program that I want to attach another program (.exe) to. I tried adding it as a resource, but I can't seem to get the resource to export out to wherever the program is running.
View 3 RepliesI have a program that uses IO.File.Copy to copy files from point a to point b. Its slow, which is fine because there rather large files. I was wondering if there is way to get an estimate time to copy a particular file(s).
Example: File a will take 1 hour to copy, File B will take 30 minutes to copy. Estimate Total Time: 1 hour 30 minutes.
.NET masters!Im working on a VB.net file management program that copies 100,000s of small images (20 - 300 KB).At least it tries to. When doing large multi-hour operations I start getting exceptions with the"Insufficient system resources exist to complete the requested service." error message.In a few cases the computer has then crashed.After a lot of debugging, finally with livekd kernal dump I can see that the System PTEs in the Kernel Mem are getting very low.I can monitor the PTE's in realtime with Performance Monitor with the Memory/Free System Page Table Entries.After an hour or so the PTE's start dropping in what appears to be linear fashion as the program keeps copying.Im sure it is the copy function causing the problem, as when i let the code run but with the copy routine commented out, the free PTEs stopped going down.Behaviour is identical with both of these calls. System. IO. File.Copy(strFileSource, strFileDest, bOverwriteFile) My.Computer. FileSystem. CopyFile (strFileSource, strFileDest, bOverwriteFile)If I stop & close the program, PTEs do not seem to rebound at all. If I start the program again, the PTEs again start going down.SO: What is up with File.Copy? Why is it using and not releasing all these PTE's? Seems this memory should be free after the copy.How can I change my code to avoid running up the PTEs?The test computer is Windows XP sp2 with 500MB ram. (also been testing with 1.5 G ram)Ive found some helpful documents on PTEs, which discuss system configuration via registry settings. But this is not really an option for me as this is a commercial product that others will be using on their own computers.Detection, Analysis, and Corrective Actions for Low Page Table [code]
View 7 RepliesI'm trying to move a lot of pictures from FOLDER A to another, FOLDER B. However, some of the pictures already exists in the FOLDER B. This stops my program saying it cannot copy the pictures over because they already exist. I'm trying to make it so any pictures from FOLDER A will copy over the pictures in FOLDER B if they are similar in name. Like... Folder A's pictures will just replaced the Folder B pictures if they have the same name. I was told to use the System.IO.File.Copy tool. Here is my code.
[Code]...
I have a little vb.net script that will copy a file, set its attributes to Normal, update the file time, and then set back the attributes to match those of the source file.
If IO.File.Exists(Destination) Then IO.File.SetAttributes(Destination, IO.FileAttributes.Normal)
IO.File.Copy(Source, Destination, True)
IO.File.SetAttributes(Destination, IO.FileAttributes.Normal)
[code]....
I however I'm encountering a quite strange problem. On some configurations, IO.File.SetLastWriteTimeUtc triggers an UnauthorizedAccess error, although the IO.File.Copy instruction worked very well.
I want to know how to connect to a remote system having some shared folder.(ex, \myservermysharedfolder).Actually, I was supposed to copy a particular file which is available in a shared location of a system. To copy that file, first i need to connect to that system with an user id and password.I know copying of file (), But not getting clear idea on how to connect to the shared folder. I have tried with System.Management class, but no use..
View 2 Repliesim trying to create a dialog allowing the user to change the image currently being displayed to something they choose.the error occurs when i hit the system.io.file.copy().heres the function.
This is the event that calls the function to copy the file - its works fine
Try
'get integer value of selected movie
[code]......
Does it do anything at all or it is only for documentation. If it is only for documentation, why documentation doesn't document it?For example these are two methods from System.Array class:
[ReliabilityContract(Consistency.MayCorruptInstance, Cer.MayFail)]
public static void Copy(Array sourceArray, Array destinationArray, int length)
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
public static void ConstrainedCopy(Array sourceArray, int sourceIndex, Array destinationArray, int destinationIndex, int length)
However documentation doesn't even mention that Copy or ConstrainedCopy are decorated.
I got a problem...after load crystal report viewer, I am unable to right click->Copy or ctrl+c and copy any text. I am using vb.net 2005, crystal Report 11...I am showing the report content on the Report Viewer..
View 4 Repliesi am mukesh i want a form were i have a button now i want to copy what ever i still now changes made in a vb.net from to be stored inside the pendrive just by clicking on the button does it possible i have done a project which is a shops project now my client wants to do that project when he is in shop he will use it in laptop but when he moves to some other location he wants to carry that project in a pendrive since he is not so much educated o he needs only one key which he must press to copy the database from my source my documents to the pendrive does it possible
View 1 RepliesI have a text box called TxtSearch on my form. The value entered should always be numeric before the search can be done if its any other data type the following Message box is give - Only a numeric value is allowed in this field", MsgBoxStyle.Information, "GCPM.. (Code shown below)
Private Sub TxtSearch_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TxtSearch.KeyPress
If Char.IsDigit(e.KeyChar) = False And Char.IsControl(e.KeyChar) = False Then[code].....
Now, when you copy and paste a String value on the textbox - TxtSearch the KeyPress doesn't work. The TxtSearch doesn't prompt the message and when you click the Search Button the application crashes - dsiplaying an error converting data type varchar to numeric.. What I want to do is if someone uses the copy and paste tool to enter the value in the textbox- TXTSearch and there is a datatype not numeric the message prompt is called ..
The triangle that is. I copy it and it pastes 4. Want to copy it to my richtextbox
View 11 RepliesWhen i copy a table into DataSet is it possible to copy its index's as well? right now i add kinda big table (250k + rows) into dataset and i need to query that DataSet table in my application, the problem is that in some quires it's getting slow.what is the right approch to solve this problem?
View 6 RepliesThis is the Delphi code I'm trying to convert to .net:
s1 := Copy ( s1 , 1,x - 1) + Copy(s1, x + 1,Length(s1));
I tried:
s1 = s1.Substring(x - 1, 1) + s1.Substring(s1.Length, x + 1)
But I get error's when the index is out of range. in Delphi it works fine.
Added one line to convert..
s2 := s2 + chr(3);
I'm trying to copy a file, using System.Copy. The destination, if it exists, should be overwritten. I had been using a single line of code for about a month, without problems : IO.File.Copy(SourceFile, DestFile, True)But problems started about a week ago, when I started more advanced checks. Partially locked files fail to copy, and the destination gets deleted. Locked files, on the other hand, work correctly: they just trigger a file in use exception.So I added this line before launching the copy:Using TestForAccess As New IO.FileStream(SourceFile, IO.FileMode.Open, IO. FileAccess. Read, IO.FileShare.None) : End Using..This was supposed to launch an error if the file was in use. But it is to sensitive. Some files (such as thunderbird's abook.mab) trigger an error in this added code, whereas they copied fine before (and you can copy them in explorer).My question basically is: How do I tell the system: copy source to destination if possible; if not, don't break destination?
View 3 Repliesi am working in asp.net/vb.net I have to copy all files from a folder to another folder through coding using system.io the files should be copied in the new folder with their existing names
View 2 RepliesHow do I get the system time using vb.net and copy it into clipboard automatically?Is there a built-in function in vb.net for this?
View 2 RepliesAs I understand it a shallow copy is like a CLONE copy of an object where the values for each property are independent of one another whereas a DEEP copy is a copy that uses the same memory locations and therefore if you change a value in one it is also shown in the second item ( By Reference to the same memory locations ).So my main question is, when dealing with CLASSEs, STRUCTUREs etcetera containing REFERENCE types.is there anyway to quickly create a CLONE or shallow copy of an OBJECT or not ? The only way I can think of is to put the item into a one dimensional array and use the CLONE method for an array. [code]
View 9 RepliesEssentially what I want to do is copy a WebBrowser object such that I can do the equivalent of "Open In New Tab" or "Open In New Window" actions, maintaining any posted data. I don't just want to navigate to the same URL as in the original WebBrowser object, rather I want to repeat the HttpWebRequest.
View 1 RepliesI have a backup class it copys every thing but the unmovable files witch in return when i test the dive that i just backed up all files to will not boot up missing win system32 config files??how would i add permission to my code??? or how do i over ride cant copy file because a nother process is useing it?
View 3 RepliesI am new to vb.net.I need to automate the selection of a pdf file on the desktop, and then copying it a specific folder and then renaming it.
View 4 RepliesI am using webDAV and .Net 2.0 to gather information on an email account on a server unning Exchange Server 2003. I have access to the uri which looks like this:I attempted to copy the file like so:
Dim uri As New Uri(uriNode.InnerText)
If uri.IsFile() Then
Dim fn As String = Path.GetFileName(uri.LocalPath)
[code].....
copy data from one csv file to another csv file.
Basically I need to copy a column of numbers from one csv file to a second column position of another csv file.
pplication that uses SQL Server Express 2005.In my application (via VB.Net 2008) i have an object of type: Code:SqlClient.SqlConnection that i use to connect to my SQL database fileI want to have a backup process that will do simple copy of the SQL file to other location, efore i use the code
Code:
IO.File.Copy(mCurrentDB, mDestPath, True)
i close the connection like this:
[code].....
My C#.Net windows Application connects to a SQLServer2005 database and implements database backup functionality.code]but it throws an exception with the following message: " The Process cannot Access the File, because it is being use by another Process"How can I copy the db file which is already in use?
View 4 RepliesI want to copy the txt file from one location to another location.
textbox1.text = Source file directory
textbox2.text = destination file directory
For Example
textbox1.text = "C:1.txt"
textbox2.text = "d:"
I want to copy 1.txt to d drive.
I've been searching all over the web to find a code to copy a file to a destination. I found one, but i need to get one so it can overwrite cause i get error when the file already exist in both location.There is my code:
Dim FileToCopy As String
Dim NewCopy As String
FileToCopy = "C:\test.txt"
NewCopy = "C:\NewTest.txt"
[code]....
My scenario is that I have a Windows service running as SYSTEM. That means no network rights by default. I want to copy a file from server A and server B. Both require different Credentials.Normally, I use Impersonation on one thread to access another server [URL]. The problem is that one thread can only impersonate as one user. And I need to access server B as well.So, I wonder about the best way to copy between two threads. I am interested in doing this in memory, for speed and I do not want to save a file locally on disk in between.
View 3 Replies