I am creating Excel file download using NOPI libraries. I have lot of data to show in Excel file which taking long time and big file size. Is there anyway we can reduce Excel file size while downloading? Now file size is 32 MB wants to this size.
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I'm having difficulties here. I'm trying to display all the datas from all the tables in the database to the 1 Excel file after clicking on 1 button. The Excel file should display each employee's data followed by the next employee's data. So on and so forth. I'm suppose to use visual basic codings to do this.
View 2 RepliesI have an issue with excel downloading with one of my aspx page. Excel file size is 256KB only. File downloading from all aspx pages except from one aspx page. I am not understanding why this is happening. Not only that, It is working on DEV and QA environments but when we pushed the same code to production. it is not working.
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I am loading a considerable amount of data from SQL into Excel. For specific reasons, I need to use the Resize method with an array when loading data to Excel.I have found a condition where the size of a cell/row causes the Resize method to crash. I have not found any doco anywhere that shows a Resize limit. My array is OK. My code is OK. But, the data for one row is very large - one field that I am trying to load to a cell has 1097 characters. I have breakpointed the code to assure that this one is the culprit.[code]Does anyone know of any size limits when using Resize. The total number of bytes being written to the row is 1402.Anyone know limits on length for Resize or "overrides" to handle this?
View 1 RepliesHow can i make a button that download a file using http show a progress bar about the downloading file state?
View 10 RepliesI am trying to download a file off my web server (easy) but the file its downloading is the updated version of the file running. I finally was able to program my automatic update software the program simply downloads a .txt file from my web server, reads it, and if the the version = (new version here) then download. If not, then go to another form. The problem I am getting though, is when the version is outdated, the file will go to download the new .exe and it gets and error saying "File already exists"
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I am trying to download a file from an FTP but i keep getting this error:
"Invalid URI: The format of the URI could not be determined."
The code i'm using is:
Dim rfn As String = "/guildford/jobs.jd"
Dim lfn As String = "C:web"
Dim ftp As FtpWebRequest = CType(FtpWebRequest.Create(RFN), FtpWebRequest)
Console.WriteLine("Downloading: " & RFN)
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I've got a code in VB that will download a txt file from a website. The problem is I want this file to be downloaded into whatever folder that my program is in. for example, if my program was in C:
andom_folder then I would want this txt file downloaded to C:
andom_folder
Here is some of my
My.Computer.Network.DownloadFile _
("http://www.mywebsite.com/test.txt", _
"define where file should go here")
But in the spot to put where to place the file, I can't just put C:andom_folder because individual users may have this program installed in other parts of there computer.
Been a while since my last posts, so i'm kinda back again ^^ Me & my friends are gonne have our annual LAN party again next weekend, and I'm usually the one in charge of taking care of things, setting up the network etc etc. One thing i've noticed over the past 4 years, is that it usually takes us a day to get everyone set up correctly, all games up to date etc etc.
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i'm new to networking in VB.net and i cant figure out how to download a file from a website. The problem i'm running into is that
My.Computer.Network.DownloadFile
I have this code to download a file from a ftp server. It works fine, well I guess semi fine ..lol.. files larger than 10 mb are the problem. Files starts downloading and when it reaches 85 % i get an error Arithmetic operation resulted
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Is there any way in Visual Basic 2010 that I can download a file to a specific location, with a progress bar showing how much of the file has downloaded.
View 6 RepliesI am trying to use WebClient to download a .zip file from my server. In debugging mode the code works perfectly, but when I deploy my software the file does not even begin to download.After my program checks to see if an update is available, it should download the .zip file from my web server via the following
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I'm trying to save this picture from a website automatically, but the problem is there is no file extension. I tried the following code, but it always gives me an error:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
My.Computer.Network.DownloadFile("http://www.hackthissite.org/missions/prog/2/PNG/", "C:PNG.bmp")
End Sub
Error: An exception occurred during a WebClient request.
P.S - I believe the reason it doesn't have an extension is because the picture changes each time the url is loaded (probably through a php code). I'm not too sure on the specifics, but the lack of an extension is what I am having problems with.
VS 2008 SP1 I am using the web client to download a file. Which works ok.However, now I have to download many and the number of files to download will change everyday.I am not sure how I can get the web client to know which files have been downloaded or not? I was thinking of using a for loop to download each file. But I will never know how many there are to download?The web client could download the same file twice?
Private Sub btnStartDownload_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim client As New WebClient()
AddHandler client.DownloadProgressChanged, AddressOf client_DownloadProgressChanged
AddHandler client.DownloadFileCompleted, AddressOf client_DownloadFileCompleted
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I am trying to download a zip file(which contains 4 text files) from a secure website and getting html page in return. If I do it manually I get the zip file. I am using visual basic express. I am very new to .net programing. why I am getting html page instead of the zip file. The manual process is to login, click ebill tab and select the month from list and click download button, which then open up the save dialog box with the zip file name.
View 5 Repliesi am having a problem with this program below.it downloads a file and has a progress bar to tell how much of the
View 5 RepliesThis is my sample code run under thread to download file from ftp server. In that, if the user want to stop file download, i tried to abort the thread. If the control in the while loop, its hang up.
How to close the binaryreader and Stream, when reader in the middle of stream
Using response As FtpWebResponse = CType(ftp.GetResponse, FtpWebResponse)
Using input As Stream = response.GetResponseStream()
Using reader As New BinaryReader(input)
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In this link there is a text file [URL] . However, using this code, it downloads an empty file. Why ? [vs.net 2005]
Dim Url As String = "http://stooq.com/q/d/l/?s=gc.f&d1=20110602&d2=20120531&i=d" Dim myWebClient As New WebClient() myWebClient.DownloadFile(Url, "c:file.txt")
Having problems with this downloader. Its a single file downloader (the file location is in the code) and it only downloads the file as 0kb (it debugs fine). Also, i think my directory finder is not working, as i did it the simple way, because i dont know the environment code. (please note i have changed the website link, but the actual link works fine )
Imports System.Net
Public Class Form1
Dim Directory As String
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I want to download a file from a financial site. When I paste the URL in a browser, the file is downloaded. However, when I use webClient.DownloadFile or even HTTPPosts...it returns an html page not the csv file.
View 1 RepliesI am creating a ASP.NET (VB.NET) application that must retrieve a known remote file and return it to the visitor through their browser. I am attempting to use the sample from Microsoft located here: bid=812406 and running into an error 'This stream does not support seek operations'. I'm not sure how to proceed.Here is the code with the error line marked.
Dim ftpWebReq As Net.FtpWebRequest = CType(Net.WebRequest.Create(path), Net.FtpWebRequest)
ftpWebReq.Method = Net.WebRequestMethods.Ftp.DownloadFile
ftpWebReq.KeepAlive = False
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I am attempting to make a "Downloader" which would download a file from the internet and save it to a local drive. However some challenges come into play, I would like the downloader to show progress. I am aware of many posts on msdn that give code on how to do this but, I would like to learn the code rather than just copy and pasting it.url...
View 7 RepliesI want to download an attachment file from an email id.
View 2 RepliesI have a windows service (VB.NET) which downloads files from a server after a specific interval. What happens if it try to download a file when its upload is in progress?
View 7 RepliesThe Program Connects and Download the File, but when it writes it to the Disk i get an Access Denied Error. on Using Fs as new.Im Running full System admin, Not sure why it is giving this error. Heres the code where it all gose wrong:
Dim rfn As String = "FTP FILE"
Dim lfn As String = "LOCAL LOCATION"
Dim ftp As FtpWebRequest = CType(FtpWebRequest.Create(RFN), FtpWebRequest)
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How can i make a downloading file app with a progressbar in it.
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Have you seen Pulse project on CodePlex?
It's a good project but it has many bugs (even have a bug that don't work!).I want to improve it.
There is a problem in the program.This program downloads images from the web.I want the unfinished pictures deleted when program closed.But I get the error that the file is being editing by another program.
How can I release that file?
I try:
Client.Dispose()
Client.CancelAsync()
i have a datagridview and each row got link.. and i using timer and backgroundworker as downloading file.. the 1st file download, its perfect working.. but when its going to download 2nd link from datagridview, nothing happened.. even its said, "The operation has timed out"..
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Update my application by downloading a file from web? When my program first loads i have this[cod]e...
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