Safe Way To Check That A File Isn't Still Uploading?
Mar 15, 2011
Is it safe to use something like this to ensure that a directory isn't currently being written to? [code]I'm processing images which can be up to 10MB so my main concern is that I'm not sure whether the LastWriteTime property (which presumably references the filesystem 'last modified' meta data) is updated when the first, last or every byte of a file is written to disk.Files will generally be uploaded via IIS7 FTP to an NTFS Filesystem on a Windows 2008 server. If it's filesystem-dependant though it would be good to also know which filsystems update when. I'd hoped that this could be used to simplify the programme by ensuring that the whole directory was processed at once. In the end I decided to rethink that since the workarounds are messier and less reliable than the one I was trying to avoid!
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Sep 4, 2008
trying to find a decent answer for my question; I do have a utf8 file which I (down)load, manipulate and wanting to save back again.The result always is that the file I produce is not in utf8 format;
Dim fs2 As New FileStream("c: est.dat", FileMode.Create, FileAccess.Write, FileShare.None)
Dim w As New BinaryWriter(fs2, Encoding.UTF8)
[code].....
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Feb 5, 2009
My application runs on a "server" machine and provides files (10megs - 100megs each) to 8 other computers. Currently this is done using a standard shared folder on all 8 computers and the server simply copies the file to \ComputerNameSharedFolder - and everything is great.However, due to new policies we need to remove all shared folders, so using a simple \ComputerNameSharedFolder is no longer feasible. Therefore I need to find a way for my application to be able to share these files in a safe, secure, and compliant way.There has been talk of using sFTP which would require each system to have an sFTP server running at all times (controlled by the application somehow), or also SSL was talked about as it can be integrated into the application easily, etc...
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Feb 21, 2010
Well im making a program that will Add the Safe File Name of the File opened in the Open File Dialog to the first column of the listview and the File name and path to the second. What i want it so when i double click on the Safe file name it will open the file specified in the path in the second column.i already got the add file to it.
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Nov 21, 2011
I created the upload page using with FileUpload server control. And I used regular expression validator to validate file extension.
<asp:FileUpload ID="AttachmentUpload" CssClass="text" size="58" Width="376px" IE:Width="385px" runat="server"/>
<asp:RequiredFieldValidator SetFocusOnError="true"
ID="AttachmentUploadRequire"
runat="server"
[code]....
It is Ok for chrome and IE but not Ok for firefox.
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Jun 9, 2011
Below is the part code I currently use to write to a file,
Try
Using sWriter As New IO.StreamWriter("C:Tmp.txt", False)
sWriter.Write(m_Buffer.ToString) : sWriter.Flush()
End Using
Return True
Catch ex As IOException
End Try
But some time this results in error
Access to the path 'C:Tmp.txt' is denied
My question is, Is there a safe way of detecting File access permissions, without handling exceptions, I mean if I can some how check before opening a file for any filehandle opened for it.
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Apr 12, 2012
I'm trying to implement a file upload system and I don't really get what to do.
I'm looking for the easiest way to do it. After long researches, I've found those explanations.
forums.asp.net/t/1678157.aspx/2/10
So, here is the things I've done inside the view :
@Code
Dim fileName As String = ""
If (IsPost) Then
[Code].....
Problem : GetHtml is not a member of 'System.Web.UI.WebControls.FileUpload'
What can I do to fix this? Is it the good way to handle file uploads?
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Feb 22, 2009
i have made a program that takes info from your registry and uploads it so I can fix it and you can download the new version of a key that makes things work faster.... when someone uploads a file, it works good, and i can look at the ftp's text file and see it, but every time someone ELSE uploads something, it overwrites the previous text file and makes another one, which deletes the first one. i would like so that when another person uploads something, it will just be on the second line then third, so on so forth.
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Apr 30, 2010
How to upload binary file to http server? (without using ASP.NET)
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May 13, 2010
i want to upload a file in vb.net.
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Apr 25, 2012
Is there a way to get the select file dialog box open and putting the location of the file into a textbox without ever uploading the file?
ETA I'm using VB.NET in a web page. By using the asp:fileupload tag I can get the file location
_fudFileLocation.PostedFile.FileName_
But how do I prevent the file from being uploaded at all. We don't need it, just the file location. (The files are on a shared drive so if it's M:documents odayslunch.pdf for person A, it's the same for person B.)
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Apr 13, 2009
I want to uploadfiles on ftp location through inet control in vb6.0. I created ftp location on my pc on iis. The control works fine if i give path like ftp://myhostname, but when I created new ftp location in my pc. It is not working. The new path is c:myftp, I created new virtual directory in ftp locations and publish the location as ftp named myFTP. below is a code
[Code]....
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May 13, 2010
I'm working in this piece of code to transfer a text file from the C: drive to a ftp location. Below is the
Dim clsRequest As System.Net.FtpWebRequest = _
DirectCast(System.Net.WebRequest.Create("ftp://10.0.0.221/sample.txt"), System.Net.FtpWebRequest)
clsRequest.Credentials = New System.Net.NetworkCredential("anonymous", "edge")
clsRequest.Method = System.Net.WebRequestMethods.Ftp.UploadFile
' read in file.
[Code]...
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Oct 12, 2010
In vb.net, I created one upload button in windows form. When I click that button, I want to upload csv file to MS Access database.
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Aug 13, 2008
In vb.net, I created one upload button in windows form. When I click that button, I want to upload csv file to MS Access database
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Mar 2, 2009
i want to develop registration form that asks, username, password and curriculum vitae(cv) file. the third column will store files that are uploaded by clients. user can edit their CV by logging using their username and password. so my question goes here. is that possible to upload the file into database? is there any drawback to upload files into database? and is that possible to send the username and password to a table, and the file into a folder so that user can edit their CV using their username and password, is there a means to connect them?
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Dec 15, 2009
I have written a simple module to access NTFS Alternate Data Streams (ADS), which looks like this:
Imports System.IO
Module Module_ADS ' Alternate Data Streams
Private Const GENERIC_ALL As Int32 = &H10000000
[code]....
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Jun 18, 2010
I am new to vb-net and am self-teaching and developing an application to combine a number of tasks which use different apps at the moment. I have a routine to ftp upload files but I am duplicating effort by uploading even if the file exists. Is there a simple "file exists()" type solution similar to:
If System.IO.File.Exists(strPic) = True Then so that file is only uploaded if it does not already exist?
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Dec 13, 2010
I'm looking to develop an application in vb.net which can connect to a WebDav enabled web server (using WebDav with login credentials) and upload desired files. Could anyone give me an example on how I can accomplish this task?
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Nov 3, 2011
I have Desktop Application by which i want to upload file to the web server. All thefunctionality are going smoothly.Now i want a real time progress bar for representing uploading file status.
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Feb 1, 2012
I have got one problem by uploading file. I created an aspx file in asp.net then I added a fileupload control and image control. I want to show preview image in image control before uploading. I created a following script.
[code]...
It is not work in every browser. How could I do that?
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Jan 19, 2011
I am using Valums AJAX javascript, found at [URL] I am using VB.net as my server side scripting language and I have a webservice that is called, but I do not know how to retrieve the query string sent by his code.
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Jan 27, 2010
Here is the code I used. everything works fine, but i need a little different code to upload image.
Private Sub btnAttach_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnAttach.Click
Dim iLength As Integer = CType(File1.PostedFile.InputStream.Length, Integer)
If iLength = 0 Then Exit Sub 'not a valid file
Dim sContentType As String = File1.PostedFile.ContentType
[Code] .....
I am not using with cmdinsertattachment. I am using Html - Input(File) from the HTML toolbox. the ID of the input file is ID="upldimg". So how do I insert this into my table which is -
Column1 ID identity
Column2 Img image
Column 3 Description varchar(200).
The insert statement like -
INSERT into table1 (Img, Description) values (???, txtdescription.text)
Do I do upldimg.text in the insert statement?
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Apr 19, 2010
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
[code]....
I am trying to achieve the following. I have a web page that I want users to upload a .csv file to, that places the file on a local server and then after that the file is then bulk inserted to a sql database. I can't get the file to save in the location mentioned in the script and I would like to do the bulk insert cleaner.
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Apr 16, 2009
I am having difficulty uploading a file using a background worker class...I've noticed that it is unable to transfer files like "mp3" ".exe" and others...although my application works fine on ".txt" and '.doc" and similar types otherwise it throws the following error following is my code for FTP...Also would like to know that the builtin FTP libraries are capable enough to make a FTP class application with RESUME capability? my files can be huge like 80MB to 100MB. [code]
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Mar 30, 2009
i am using asp.net and vb.net 2008 ,sql server 2005 for my web application.i want to upload files(.PDF ,.DOC, .DOCX file extenstion in to my table) i did the followin:
create table filetable(filename varchar(300),filesize int,filedata text,contentType varbinary(max))
does the data type of each column correct?
Dim con As SqlConnection
Dim cmdinsert As SqlCommand
con = New SqlConnection("server=(local); Data Source=gig;Initial Catalog=mydb;User ID=sa;Password=test")
Dim str As String
[code]....
can u drop me a line how to uplad pdf, and word files in to a table and then how to get them back?
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Oct 14, 2009
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error. Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:inetpubaophaUploads". at System.IO.__Error.Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code]...
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Oct 14, 2009
I am having trouble uploading any file to the path in the error message below. Does anyone have any idea what the problem is. I did some research on this and most sites say that the permissions need Read/Write access for the asp.net user. I tried this and I still receiver the error.
Here is the error:
For example Error saving file education_calendar.pdf System.IO.DirectoryNotFoundException: Could not find a part of the path "d:\inetpub\aopha\Uploads\". at System.IO.__Error.
Here is my code for the click event. I am not sure what is happening here:
Private Sub cmdUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpload.Click
If IsPostBack Then
Dim MyFileColl As HttpFileCollection = Request.Files
Dim MyPostedMember As HttpPostedFile = MyFileColl.Get("File1")
[Code] ......
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Jan 27, 2010
this is the code i used from this site. everything works fine, but i need a little different code to upload image-here's the code -
Private Sub btnAttach_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnAttach.Click
Dim iLength As Integer = CType(File1.PostedFile.InputStream.Length, Integer)
[code]....
i dont have these parameters. i only have 1 field in sql server table that says Img and has image datatype. how do i use this code to get my image in db using this insert statement?insert into table1 (img) values (???)
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Sep 18, 2008
I am interested in uploading an image to a file field using httpwebrequest or similar however I am stuck on a few things. Would it be a matter of add the file field and the image I would like to upload as the value? I'm not looking for code, I would like to learn how this can be accomplished.
[Code]...
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