Create A Asp.net Download Page?
Sep 1, 2011
I'd like to create a asp.net download page. I receive the file from a dataservice as a byte array. The file size can be up to 10gb. So I need to transfer the file "in parts".
Here is my code:
Response.ContentType = "application/octet-stream"
Response.AddHeader("Content-Disposition", _
"attachment; filename=" & HttpUtility.UrlEncode(file.Name))
[code]....
The code snippet works but I have a big problem. The download already starts before the user confirmed the browser download dialog. If the user waits 5min he has already downloaded the 10gb file without accepting it.
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Dec 10, 2010
I've been using this simple code to download a URL to a file :-
Code:
Shared Function DownloadFile(ByVal URL As String, ByVal LocalDest As String) As Boolean
Try
Dim wc As New System.Net.WebClient
Dim u As New Uri(URL)
[code]....
Then simply load the file in to a string and find the data that I need.
1. Is there a more efficient way of downloading a web page directly into a string without having to save the file physically to my hard drive?
2. Can I specify a timeout somewhere?
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May 4, 2012
I am very fairly new to web programming. I am attempting to download an excel from an ASP.net website. IT does not need authentication, however I am unable to debug the URL as firebug would just not how me the request URL. Searched high and low.
Website: [URL]
Actions: I click "Summary Download" button to download the excel.
I have no idea where the onClick() goes.
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Jun 2, 2010
I want to request a page(file) of information from a web server using VB code running on a PC. What is a simple piece of code which does this and/or the libraries/calls I need to use.
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Jun 7, 2010
i need to download page from source code..for example<span id="businessNumOnMap" class="resultNumberOnMap" style="display:none;"></span><span><a ref="/len/aapproximatch%20search/285295.php" onclick="loadBusinessInfo('0', '285295'); return false;" class="businessName">Cellini's Italian Restaurant</a>i want to download the "/len/aaproximat...php"..i didnt find the suitable regex for it..and i need to download that page
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Jun 22, 2010
The users instead of using Vertical ScrollBar in DataGrid1 they requested for NEXT and PREV buttons for paging the display on DataGrid. I have added the NEXT Button and PREV Button but doesn't know how to create the script to perform the function of NEXT Page and PREV Page.
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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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Jun 21, 2010
i want to download a file from a SSL web to my local(C:)
[URL]
Scenario: from the web browser(Internet Explorer), i required to login to the site in order to download the file.
in the vb program i pass in this url to download the file (include my password and username): [URL] but what has been downloaded to my C: is the login page(in myfile.txt) but when i use the url on the web browser[URL] i managed to get the file (the actual file).
Question: is there anyway that i can download the file from a login page?
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Mar 13, 2009
Dim wc As New System.Net.WebClientGamerTag.Replace(" ", "+")wc.Credentials = New System.Net.NetworkCredential(Email, Password, "http://live.xbox.com/en-US/profile/profile.aspx?GamerTag=" & GamerTag)Dim fx As New System.IO.StreamReader(wc.OpenRead("http://live.xbox.com/en-US/profile/profile.aspx?GamerTag=Dark Slipstream" & GamerTag))Dim str As String = fx.ReadToEndfx.Close()
The above code will open a webclient, set the credentials (possible error?), create a stream of the entire page, and then load it into a string (str).I then scan through and look for what is needed (Gamerscore, Motto, Bio, etc)-in this case.This doesn't work however, it doesn't sign in.
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Aug 9, 2011
In a loop, I need to read a list of URLs from a text file, download the web page, and search for a bit of text using a regex. I used the following code, which triggers the error "WebClient does not support concurrent I/O operations.":
[Code]...
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Jun 30, 2011
I am developing a website in ASP.Net and VB.Net to allow users to upload and download files from and to an FTP site and my desktop.
I have successfuly got the upload side working.
As far as the download part is concerned, I have so far got it so that when the user goes to the download page, the FTP file list appears so you can see the files that are currently residing on the FTP site.
I was wondering if there is a way that I can program my site so that the user can select one of the files and click on the 'Download' button that I have?
Here is my code so far:
CODE:
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Nov 15, 2011
any code sample to enable user to download all pdf links on one gridview and download all by one button click instead of clicking the link one by one?
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Sep 6, 2010
i use this code to download the source of a page from a site
Dim MyWebClient As New System.Net.WebClient()
TextBox1.Text = MyWebClient.DownloadString("site")
but it doesn't work when i try to grab a site that has .php so how could i accomplish downloading the page source of a site that ends with .php
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Jan 11, 2011
I'm trying to use a java servlet in a 3rd party tool's web interface (CA service desk) to invoke it's download file functionality using a webclient in vb.net. The trouble is the text stream from response is markup and not the acutual text file stream.
It's like the page is redirecting to another page which actually presents the file for downloading. I have no idea what the redirected page URL is.
Is there a way I can process this redirected page in order to get at the download using a system.net.webclient?
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Apr 8, 2011
I want to download the same information which is obtained when we right click view page source in browser. I want to do this either in vb.net or perl
I need it for google image search result webpage.When that page is saved then html code is not same as view page source info.tags for images are absent. [code]...
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Mar 28, 2010
Im Trying to Set up a Create User page and a Log in page. both pages are on a different Form in Visual Basic so far i have;
Code:
Imports System.IO
Public Class SecondForm
[code].....
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Aug 11, 2009
How to create a download manger for my web browser?
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Sep 5, 2011
Some coding in visual basic 2010. How does one create a download ETA for their application? Here's a picture to show you what I'm trying to achieve.
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Dec 19, 2011
I have a normal winform and I would like to know is there any possibility to generate a html page and to add a css file to the html page from the local folder.
something like this:
<html>
<head>
<script type="text/css" src="MyDir/main.css"></script>
</head>
<body>
</body>
</html>
How do I do this from the codebehind(logic part)not web application codebehind using webbrowser control.
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Jun 15, 2011
I've use VB net to create a application that can download the real-time data from a device for every second. Now I want to upload the data to a website in real time. (So some who is far away, can also check the data through the website)
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Nov 8, 2009
i am using System.Net.WebRequest.Create(url) to download html code, but it missed some data. if i use IE to view page and click "view source", all data will be showed.
my code:
Dim req As System.Net.WebRequest
Dim resp As System.Net.WebResponse
req = System.Net.WebRequest.Create(url)
resp = req.GetResponse()
[code]....
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Dec 24, 2011
I am wanting to create an application that will monitor the upload/download traffic of a user. Can someone point me too some code that I can have a look at?I have found SharpPcap - A Packet Capture Framework for .NET, but cannot find any vb.net code for it.
I have found this code:
Dim Properties As IPGlobalProperties
Dim StatV4 As IPGlobalStatistics
Properties = IPGlobalProperties.GetIPGlobalProperties
StatV4 = Properties.GetIPv4GlobalStatistics
Dim Packets As Long = StatV4.ReceivedPackets
What actually is a 'packet'? Can I calculate the download/upload from this code by maybe multiplying the recievedPackets by packet size... or something like that?
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Aug 5, 2009
I currently have a program that allows users to download files into a folder of there choice. I currently have 10 different forms all with a text box to show folder location and a browse button for user to find it, but what I want to do is create a form that will appear at the start where the end user can enter the folder location so that they don't have to enter the folder path for every download they want to do. How would I go about doing this I have a textbox, browse button and an OK button but have no idea what to do next.
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Jun 13, 2012
I'm trying to code a program that can download multiple files at once (on different threads of course).I have created a custom listview component that will allow me to add a progressbar directly to it.What my real question is, how can i take a url given by the user from an input box and create a new webclient to handle the download asynchronously and also report the progress without disturbing all of the other downloads in progress?
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Aug 26, 2011
[code]...
I have a treeview and a tab control on my design page. Tree view has four parent roots: Animals,Flowers,Fruit Vegetables. It has also a number of child roots.When I double click on a child root at run time I want to creat a new tab page on tab control1 with the name of that double clicked child root and it must have have different number starting from one after the name. For example: jaguar1,jaguar2, apple1,apple2,apple3,... When clicked parent roots mustnt creat a tab page.Each tab page must have the name of the childroot clicked and a number starting from 1... How can write this code in visual basic
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Jun 12, 2011
I have a text input in textbox1 in tab page 1 and i want that text from textbox1 will be displayed in textbox2 in tab page 2.
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Jan 18, 2011
Is there a VB.NET subroutine that gets executed on page reload? I have the following load subroutine[code]...
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Oct 5, 2010
I wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript">
function ShowCurrentDateTime() {
$.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
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Nov 4, 2010
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
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May 17, 2012
I need sample vb.net code to save single windows form as many page and reload the page whenever i call that page...
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