Winforms - Uploading Multiple Files With .Net?
Nov 26, 2009
I need to upload multiple files in a winforms application. So far I've been using a webclient and while this is working fine I'm wondering if there is a better way for doing this. Does the webclient make a new connection for every request or does the connection persists between uploads?
Dim Ftpclient As New System.Net.WebClient()Ftpclient.Credentials = New System.Net.NetworkCredential(username, password)
Dim Files As New Dictionary(Of String, String)Fill dictionary with items for upload here
For Each RemoteFile As String In Files.Keys Ftpclient.UploadFile(RemoteFile, Files(RemoteFile))Next
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Jul 30, 2011
I am trying to add multiple files to FTP server by dragging and dropping and I am able to do that using try catch block and if we give the ftp settings correctly it takes 1 sec to upload them but when we give wrong details it hangs up and dosen't give me any error message though If I give an exceptional message.
Now I am getting error message as well as success message for every file I add.I do not want that to be happen.where should I give messages for success and failure so that it should take few seconds for uploading and if not should give me a message immediately.
Here is my code:
Private Sub uploadFile(ByVal FTPAddress As String, ByVal filePath As String, ByVal username As String, ByVal password As String) 'Create FTP request
Try
[code]....
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Mar 3, 2012
do i make a program in visual studio winforms that when i upload files like (.docx,.doc, .pdf files, .swf files) it will stored into a folder.Second, i saw the files being uploaded in Winforms (something like "myDocuments"). Third, when i open the files it will show the file just like in .docx it will open in ms word, .swf it will open internet explorer, .pdf files it will open the .pdf files.
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Sep 3, 2010
I am trying to import an excel file using asp.net and C#. I found an example in VB, but it is using something called "Server.MapPath" which is not resolving to a namespace. I am on .NET 4.0, C#, and windows XP.I found a "HttpServerUtility.MapPath", but I don't know if this is the equivalent for IIS7?
C#
public OleDbCommand ExcelConnection()
{
string conStr = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("~/ExcelImport.xls") + ";" + "Extended Properties=Excel 8.0;";
[code]....
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Jun 27, 2010
I am currently creating a FTPWebrequest to handle my uploading (the webrequest section of my function is below). At the moment my code loops through this webrequest section for each file - giving the file path of each file in the string "CompleteLocalPath". For each file it creates a webrequest and giving the required file path, uploading the file using a file stream, and then closing the stream. This works, but seems to take quite a long time. Can you recommend a more efficient way? Perhaps by using one webrequest but modifying the upload path?
[Code]....
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Dec 23, 2009
I want to upload files from particular location. I got problem with GetRequestStream() function.
Here is the
Dim path() As String = Directory.GetFiles("C:files") 'I tried and with("C:/files/")
For Each files As String In path
Dim ftprequest = DirectCast(WebRequest.Create("ftp://" & FTPHost & "/" & files), FtpWebRequest)
ftprequest.EnableSsl = True
ftprequest.Credentials = New NetworkCredential(user, password)
[Code] .....
Error message is:
The remote server returned an error: (500) Syntax error, command unrecognized.
When I tried with My.Computer.Network.UploadFile(...)
I got this error:
The remote server returned an error: (550) File unavailable (e.g., file not found, no access).
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Aug 19, 2010
[code]I would like someone to kindly ajust it so instead of uploading from the "Downloaded Songs" in the application files, i would like it to upload from the user's "My Music" Folder
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Nov 5, 2009
I am uploading file to mainframe and before uploading when I open it using notepad I am able to view it.
Once uploaded the administrator is complaining that he is not able to read the data in file and it appears as junk.
Is there anything else I need to do before uploading files to mainframes. I am using Chilkat component to upload the files to mainframes.
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Mar 12, 2012
I have trying to upload some large files using FTP. Here is the code I am using below.
Private Sub UploadFTP()
' Open file.txt with the Using statement.
Using r As StreamReader = New StreamReader("list.txt")[code]....
I basically loop the above to upload all the files in a specific directory. This works fine with small text files,but when I try uploading a large 30+- mb file it gives me an error.
Quote: The underlying connection was closed: An unexpected error occurred on a receive.
On
cls_stream.Close()
I understand this is caused by .Net not communicating with the server properly? I tried searching all morning to only get confused by all the different methods.
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Nov 10, 2010
I need to upload a file and rename it. I have found a lot of code that uses the WebRequest for this. I was wondering if there is another method that logs in to the ftp server and will stay connected while I upload files. I am doing this for a webcam application and it seems another method would be quicker than using the credentials each time I need to upload and then rename the file.
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Aug 2, 2010
I have a file uploading and viewing page in ASP.Net 1.1 using VB. Now the page will be visible in intranet as well internet. Here in my case the intranet and internet servers are different. How can i save the uploaded file in the intranet server and view from there subsequently when the activity is done using the internet server?
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Jul 3, 2011
I need to upload a large set of files and directories to my web server, all of the files that I want to upload to my server are located in "C:Files_To_Upload" directory, it contains thousands of files and maybe 100 directories/sub directories so I don't want to have to specify each specific sub folder and file - jmcilhinney's ftp example which I am currently working with shows a way to upload all of the files from a specific directory, but not subfolders and their files. How can I get it to also upload the sub folders and their files?
Code I am using based on jmcilhinney's threaded ftp example:
Private Sub UploadFolder(ByVal source As String, ByVal destination As String)
For Each file As String In IO.Directory.GetFiles(source)
Threading.ThreadPool.QueueUserWorkItem(AddressOf UploadFile, _
[Code]....
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Mar 2, 2011
I am using an ASP.NET FileUpload to upload files to the server.How to upload it to the rootfolder of my project. I want to add the files to a collection or list of files to be shown on the webpage in the form of gridview.Each file should have a link to itself in the list So that it could be downloaded by the click-if desired.The gridview will also have a delete column so that I can delete any of the corresponding file-as desired.
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Apr 12, 2012
I have built working VB.net code that uploads multiple images to the server using Plupload. I am using an HTTPHandler (FileUpload.ashx) to do the uplading and want to add a SQL Statement that will insert each of the images File Names to my SQL Database. I have tried just adding the SQL to the Handler, but when I do I get 4 database entries for each iamge that is uploaded.
Pertainant HANDLER code:
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
[Code].....
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Dec 13, 2005
I'm totally new at web-programming and haven't got a clue where to start looking.I'm writing a .NET exe using VB.NET 2003 and it has to do 3 things online.1) it has to read contents of online textfiles (this works, I'm using WebClient)2) it has to upload local textfiles to a webspace (doesn't work 404 error)3) it has to append lines of text to a existing textfile on the webspace (this is not important right now, fix 2 first)What approach do I need to take? I have been unable to find any good articles on this, everyone uses an ASP.NET app, but that cannot be done in my case.
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Feb 24, 2010
I have wrote a routine to upload a database file to a server using webservice which works fine until I try and send a large file. It errors all the time saying the connection was disconnected. how to upload large files?
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May 20, 2009
Well when i am uploading files with FTP then people can always read my information with a Network Sniffer.Thats why i now want to solve it with a PHP-Script now:This is the information when i upload a file:everything that is red i do not understand i tryed it then with the code below but doesent work. [code]
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Mar 18, 2011
I need to run multiple task in the background using backgroundwoker
e.g dim mybacgroundwokers(10) as backgroundwoker
in the backgroundworker event procedure, can i do somthing like this, cos i don't have an idea
mybackgroundwoker_dowork(,,index)
select case index
case 1
'dowork for backgroundworker1
case 2
'dowork for backgroundworker2
end select
or how do i handle multiple backgroundworker if non of this is possible with the backgroundworker, how do i do this using thread multithreading?
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Aug 12, 2009
Has anyone tried using controls from different sources into their application that uses winforms? Will these combination of controls work together?
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Dec 1, 2010
validating a form with multiple text boxes? User would be informed what was the problematic field.The source of the form:
Private Sub btnNewUser_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNewUser.Click
'If txtEmail.Text.Contains(" "c) Or Not(InStr(txtEmail.Text, "@")) Then
'txtEmail.Clear()
'ElseIf txtPassword.Text.Contains(" "c) Then
[code].....
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Sep 22, 2011
I want to update a database based on the form that is currently activated. I had originally decided to use the GotFocus event. However I now understand that will not work as the form has controls on it. So I then thought I wouls use the activated event. This works but seems to fire multiple times. I put in the following code:
Private Sub frmNewTicket_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
MsgBox("Form Activated")
End Sub
I select the form and make it activated and the message box appears about 15 times.Why does it do this? How should I handle this. I only want my code to execute once when the form is activated.NOTE: There are several forms that the users will be changing between, incuding forms from other applications.
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Feb 7, 2010
I have several textboxes in a form, and have a button which inserts all the values in a Database and I have to clear the content of all the textboxes and focus to the first one right after pressing the button.Now I can easily do that using the Clear method of each of the textboxes but it takes 10-12 lines of code just for that. Can I do that in one go?
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Jun 18, 2012
I have a website that has highly granulised access and hence requires many web.config files. The problem is I would like to trim the menu so that only certain users will have access to certain folders. I have enabled trimming and setup roles in the sitemap, however when I access the page the menu is not show, as I am authorized to view the default page which is not in a subfolder. When I type the url of a page in sub folder's I have access.
How should I handle this:
A site map for each web.config file - don't know how this will work Removing the sub web.config file to only use a single one
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Oct 22, 2010
Allow each item to use multiple lines in a Winforms Combobox (or Listbox)
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Apr 16, 2010
I have a little problem with a little VB.NET application that I am building. This is a winforms applications not WPF.I have a checkedlistbox with a few items and I want to allow user to select more than one using arrows keys or mouse clicks combined with shift and ctrl keys so I set selectionMode property to multiExtended. In design time it is not possible I get an error: It says value property is not valid.and if I set it in runtime by doing:
clbEmployees.SelectionMode = SelectionMode.MultiSimple
I get an error too: It says CheckedListBox is not compatible with multiple selection.
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May 23, 2012
I'm trying to select the files and folders inside a folder to zip up, but what it seems to be doing is selecting all the folders up to the folder i've selected and the files in the final folder but not the folders in there and zipping them up. So for example in tbFolder I have the string: "C:Users ombDesktopDeOldMota7" I want to select this folder and zip up the entire contents of this folder, images and all. But whats happening is the following:
Its creating the folder structure up to the folder i want zipped and adding just the files in side this and not the folders. I'm guessing I need to tweak the line:
System.IO.Directory.GetFiles(DirectoryToZip)
Here is the entire code:
Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim ZipFile As String = "C:Releases" & drpService.Text & "-" &
[Code].....
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Dec 10, 2009
I know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file
Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")
[CODE]...
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Mar 30, 2010
I'm developing an application to help law enforcement retrieve and analyze logs and other files left by the use of Pidgin (a multi-protocol messenger client). Right now I'm nearly done, but I want to add the ability to search chat logs for user-defined words or phrases and I don't even know where to begin.
Chat logs are stored as html documents in a folder/sub-folder/sub-folder/sub-folder fashion, where each sub-folder can have dozens of sub-folders inside of it, and the final sub-folder can have dozens if not hundreds of chat logs. If anybody could point me in the right direction, I'd be very grateful.
(Also, this is the first program I've written since about 2005, and I'm essentially teaching myself VB as I go. If you'd like to see what I've cobbled together so far, you can find the program here.)
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Aug 18, 2011
I'm trying to copy multiple excel source files into one excel file. My current code is working only for 3 source files..If more than 3 files are there, it doesn't copy the data but creates blank work sheet in the output excel file. Lets say I have a source folder with 5 excel files. Each workbook contains one worksheet with data. It copies upto 3 worksheets along with data into output excel file.
Lets say excel1 contains A as work sheet, excel2 contains B as work sheet ,excel3 contains C as work sheet ,excel4 contains D as work sheet ,excel5 contains E as work sheet .Now my output excel file should look like..OutputExcel with A, B, C, D, E along with respective data.But my current code is giving output as A,B,C worksheets along with respective data but its creating blank sheet1,sheet2 in place of D & E.
SSIS Script Task Vb.Net Code:
Public
Sub Main()
Dim filePath
As
String =
[code].....
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Jul 2, 2012
I know how to create a file, but would it be possible to create multiple files? the number I would like to create is determined from the number in a textbox, i.e., if the textbox had 2 then I would create 2 files, if it had 5 then I would create 5 files.
My code to create file
System.IO.File.WriteAllText("C:\Test.txt", "")
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