.net File-download Prevents Postback?

Apr 14, 2011

I want to generate a (report) file for users to download, then display a message to users to show the process completed successfully.

Dim myFile As FileInfo = New FileInfo(<filepath>)
'My function to generate a report (this can take a few minutes)
GenerateReport(myFile.FullName)

[code]....

However, when I use create a "save as" box, it seems to stop the message appearing at all.

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.net - File-download Prevents Postback?

Nov 27, 2011

I want to generate a (report) file for users to download, then display a message to users to show the process completed successfully.

Dim myFile As FileInfo = New FileInfo(<filepath>)
'My function to generate a report (this can take a few minutes)
GenerateReport(myFile.FullName)

[code].....

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Can Postback Page Or Open Download Dialogue - Not Both

Apr 2, 2009

This code makes the the download dialogue open for the file I want downloaded .

Response.ContentType = "application/octet-stream"
Response.AppendHeader("Content-Disposition", "attachment; filename=" & FileName)
Response.TransmitFile(Server.MapPath("~/Admin/EmailLists/" & FileName))
Response.End()

After the download dialogue opens I need a series of changes to happen on the page, but I have noticed all the code after this code will not run. Anyone know how I can make the page changes occur AND get the download dialogue to pop up?

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Download File From Http Server That Requires A Referral Before Allowing Download?

Nov 18, 2011

I usually download file using following code:My.Computer.Network.DownloadFile("url of the file","filepath to save the file")But recently I encountered a site that only allow file download if you click it from its site and not via direct downloading from vb.net code.How to download file from http server that requires a referral before allowing the download?

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Asynchronous File Download And Synchronous File Download?

Apr 13, 2011

What is the meaning of asynchronous file download and synchronous file download ?

I came to them while using system.net.webclient class

I know a basic meaning of tcp/ip and http .

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Download Multiple File + Progressbar But Cant Download File

Nov 10, 2011

i try to download multiple file + progressbar.. but its seems nothing happened and the file is not download.. my program just function like.. when the file was error.. it will download the latest file from webhost..

[code]...

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Using A WebClient To Download A File, But Being Able To Get The Download Information?

Oct 23, 2009

Imports System.Net
Public Class DownloadStuff
Dim downloader As New WebClient()

[code].....

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Download A File With A Download Timeout?

Feb 4, 2010

I want to download thousands of files from the web and save them locally. What is the most efficient way? It is important the failures timeout within 10 seconds.

Is there a better way to stream one stream into another? Maybe a smaller buffer, like 1024 bytes at a time, is more efficient for large files?

Dim w_req As System.Net.HttpWebRequest = CType(System.Net.HttpWebRequest.Create("http://blah.blah.blah/blah.html"), System.Net.HttpWebRequest)

[Code]....

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IDE :: "File Download" Dialog / Way To Perform Download Operation At Back-end

Jun 15, 2010

I have created a application in vb.net. I am using Web Browser control in it.With this Web Browser control I open an URL and tries to Download something, it will populates an dialog for "File Download" to Open/Save/Cancel for the file..I am downloading the .ZIP file, and it will not show the checkbox for Automatically Do.Is there any way to perform the Download operation at the backend, means it will not ask me for such options.

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App Prevents WinXP From Shutting Down

Sep 16, 2010

My app is a tray icon which scans the Outlook Inbox periodically. It seems, from testing in my VMWare WinXP machine, that the app stops Windows from shutting down. I press StartShutdown but nothing happens. I have to exit the app first then StartShutdown will shutdown the PC.

[Code]...

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Prevents An Empty Row From Being Displayed In A DGV?

Apr 21, 2012

Is there a property setting that prevents an empty row from being displayed in a DGV? I have a DGV that is populated manually, the dataset that contains the data has 2 rows in it. The DGV contains those 2 rows of data plus an empty one. The return value of the DataAdapter Fill is also 2.

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VS 2008 - .txt File - Write The File Path So That Someone Else Can Download My Program And File And Read The File

Feb 27, 2012

Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.

This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"

I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?

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Allows The Property To Be Updated Although The Set Method Prevents?

May 4, 2012

Having trouble with properties in a Class, demonstrated by the code below.If create a class (person) that has another class (address) as a property and set the elements of the address, the set method on the first class never gets called.It also allows the property to be updated although the set method prevents this.

Module Module1
Class PostalAddress
Property Street1 As String[code]....

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Application Window Prevents Taskbar From Being Seen?

Nov 18, 2009

I have a VB.NET form that takes up the whole screen. On Windows XP, the taskbar is not displayed when moving the mouse to the bottom of the screen. I have auto-hide set, and the taskbar is not locked. I tried the same thing on a Vista computer and it works fine. What am I missing on Windows XP? I need the auto-hide feature to work for my app like it does for other Windows apps.

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Splash Screen Prevents App From Closing

Mar 31, 2009

I added an splash screen to my app. Then in the project settings I selected it to be used for the splash screen. Now my app won't close when I try to exit my app. I have 'When Last Form Closes' selected for the shutdown mode. So I'm guessing the splash screen is calling Hide() instead of Close(). I can't find a way to get access to the splash screen object so I can try callling Close().

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Dropped Combo Prevents 1st User Click Elsewhere?

Jun 11, 2009

Context=VS.NET 2005, windows forms

I have created a custom combo that automatically drops when the combo receives focus. When the user uses the mouse to click on another control or the Windows Form the combo list is undropped but the click on the other control is never fired. Is there a way to avoid what appears to the user as a need to double click?

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TransparencyKey Prevents Screen Grabbing Of The Form?

Jul 9, 2009

I use the 'TransparencyKey' feature on my form to make a 'Panel' control transparent so i can see a program thats running underneath my form. If i try and do a screen grab (Capture a picture) of my form it only grabs a image of the background of my desktop and the program below and not my form.

If i use the normal Windows 'PrtScrn' key to grab a still image it manages to capture my form and underlying programs fine. This appears to be a limitation of transparencykey because as soon as you disable/remove it the screen grab works fine on the form. how to resolve this problem as removing the 'TransparencyKey' feature is not a option as i require this for my program

see the attached image for a better description of the problem

Image on 'Left' shows the transparent window viewing the desktop and program beneath. Image on the right shows the captured image and it completely missing the form and transparent window from the shot.

[URL]

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Why Is Code Prevents From Throwing DBConccurecy Exception

Nov 16, 2009

I have written a small application perform CRUD operations on a Designations table. User search a Designation by Index and can make changes and the updates. I cannot see anything incorrect in my SQL and SQL works perfectly fine. Since i've created my Dataset using the desiner it automaticaly added the Optimistic concurrecy handling to the Dataset, therefore if an update fails it shold throw the DB conccurency exception.That's where the problem is, it doesnt throw the exception, application can retreive can update also fails to update on conccurency violation but when it happense it doesnt show the exception..... since code is long and have BLL and Presentations layers i've added a link you should be able downlaod the code + DB...

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'event Log Full' Error Prevents Opening New Express Database

Feb 27, 2009

Creating a new database in a Windows Forms project (done according to one of the MSDN tutorials) results immediately in a "The event log is full" error.The database exists as an item in the project, but cannot be opened or configured (i.e.,it doesn't exist really). newly installed MS SQL Server Compact Edition,This is a new computer (though fully updated), and to my knowledge no other versions of SQL server are installed.I note that someone else has contributed a message about the exact same problem (according to a preview in the MSDN search results page), although for unknown reasons clicking on the item does not take me to that message.

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Adding A Textbox To The Form Prevents The Program From Recognizing Keydown Events?

Sep 2, 2011

when I added a textbox to my form, my keydown events no longer work. It seems impossible to get the blinking cursor out of the textbox so as to avoid targeting it. How do I retain keydown events when a textbox is added to the form?

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Devex Ribbon Control Prevents Application Start - Entry Point Was Not Found

Jun 16, 2011

It does work on some machine's but wold not start on other computers. from the code line's I see the problem is related to devex components.

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Download File Read HttpResponse Content-Disposition File Name Encode?

Dec 16, 2010

I cannot read filename in response header:Content-Disposition: inline; filename="

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Use The WebBrowserControl To Download A Program Generated PDF File Without The File Save As Dialog

Sep 15, 2011

I am writing a Windows Form program to automatically download and store generated PDF reports from a web site using the WebBrowser Control. The web site uses Ajax to link an icon back to the source aspx file which then returns a PDF file.

The problem I have is that the WebBrowser control brings up the File Save As dialog box when the PDF file is returned and I can find no way of handling this to cature and save the returned file. I have found other examples of how to manage this using the Navagating event to validate the extension of the file that is being accessed (e.g. [URL] and, if not an HTM, file then use the HTTP Web control to directly download the file. Unfortunately this will not work as the call references a .aspx page.

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VS 2008 Make A Button That Download A File Using Http Show A Progress Bar About The Downloading File State?

Sep 17, 2009

How can i make a button that download a file using http show a progress bar about the downloading file state?

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VS 2008 Multiple File Downloader - Only Download One File At A Time

Dec 25, 2009

i made downloader that will display the following items to the user. The Name of the file that the user is downloading The Url Were the file is being saved The Size of the file The speed at which the file is being downloaded And the Status. But the Problem is that the downloader can only download one file at a time. How can i make a multiple file downloader Which if the user wants to download 2 or 23 files he can.

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Creating Download Link To A File On A File Server

Oct 11, 2011

I'm looking for a way to (easily, by preference ;)) create a download link to a file on a separate file server.The situation is as follows: the application I'm developing (asp.net 2.0 in vb.net but I have a similar issue in c#, either solution works for me) will be run internally for a company.As is good practice, the file storage and web application are on two separate servers.I basically need to be able to create a download link to a file, the only available URL i have to access the file is servernamefolder1folder2folder3file.txt (can be any sort of file)[code]Which doesn't work for obvious reasons. It used to be set up to write that file to the application path itself and that worked perfectly, but it isn't good practice and that's why I'm changing it (or trying to).I read solutions about creating a download page and then having a table in your DB which holds the links and returns the proper web URL for download but the time constraint I am faced with unfortunately doesn't allow me to develop that.

Assuming I can provide a string with the full filepath to the file like the above, what is the easiest way to just create a link that, when clicked, downloads the document? I have 0 admin rights in this environment. That really isn't helping me. Let's assume I am given the correct link like above and have the appropriate file access rights and such.The above example does work in IE, but not in Firefox and Chrome. IE converts it to a file://servername/... link which does what it's supposed to, but FF and Chrome both actively decided that this is unsafe and have disabled it from their browsers.

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Download A File From A Url And Have It Zip To A Specific User Defined File

Jun 15, 2010

im going get ot the point i just wanta download a file from a url and have it zip to a specific user defined fileurl so here is my fake code please put in vb 2008 language. [code]

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Download A File From Https Site Only Know Partial File Name?

Nov 6, 2009

i want to automatic file download using vb from an https site.i don't know the full file name. the file name is make up by 2 pieces, i only the 1st portion of filename.

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Download File With File Information And Progress Bar?

Sep 16, 2009

well i'm currently making a downloader for miniclip games to play them offline. i could make the code to get the download link and i could download them getting the code to get the link took some time to collect . i could find through google how to download that link

My.Computer.Network.DownloadFile(TextBox2.Text, SaveFileDialog1.FileName)everything works fine and the file is downloaded successfully, what i need to know now is how to get file size, or how much is downloaded from the file, download speed and show the download on a progressbar

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Get To A Webpage That Has A File Link To Download A File?

Jan 4, 2012

I am trying to automate file downloads. Sometimes I get to a webpage that has a file link to download a file, but it is not a direct link. Instead it is a PHP request on the server side, for the file.

Is it possible to automate this using the webbrowser control, or is there another way I can do this using VB .NET?

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