Web Forms :: Download File Button Inside The Gridview?
Apr 26, 2010
I have a gridview which bind from a database. It populates my data which is Name, Address, Pic, PicLocation. I have a question regarding downloading the Picture/Documents that the user will upload. In my PicLocation column, it contain where the picture is located(where i saved it, like C:Pictures) from the server while in my Pic column it contain where the picture was saved inside my program location (~Pictures).
My question is how can i download the picture that was uploaded by a user? I think I can use the PicLocation here. I am using VB as my language..
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May 7, 2015
When I click on download link button which has the path of the file stored on the gridview how to pass only the filename to the query string... like for example URL....presentation. pdf is the file name and it will be displayed with the path stored on the gridview.. How to extract the filename and make it download on a new window by passing the filename on the query string..
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Sep 2, 2013
I need to download a .mp3 file from a folder. during download a new blank page should open and after downloading it should close automatically.
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Jan 13, 2011
I'm usign the following funtion to download a file from griview link button.
This code works fine without the Update Panel in the form.
If i put grid inside the updatepanel, i can't download the file. shows System.WebForms Cannot parse file.
//protected void LnkDownload_Click(object sender, EventArgs e)
//{
// LinkButton Lnk = sender as LinkButton;
// string filepath = Server.MapPath(Lnk.CommandArgument.ToString());
// System.IO.FileInfo myfile = new System.IO.FileInfo(filepath);
// if (myfile.Exists)
// {
// Response.ClearContent();
// Response.AddHeader("Content-Disposition", "attachment; filename=" + myfile.Name);
// Response.AddHeader("Content-Length", myfile.Length.ToString());
// Response.ContentType = "application//octet-stream";
// Response.TransmitFile(myfile.FullName);
// Response.End();
// }
//}
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Mar 12, 2011
How to make the download button owrk inside update panel
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Sep 20, 2015
I want to download a file from database using asp.net c# code in page load event.My table design as below
Table Name: tblFiledownload
Id - int
Data - varbinary(MAX)
FileName - varchar(50)
FileExtension - varchar(50)
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Dec 30, 2010
I tried this method:
string alteredname = "/store/" + filenames;
string filepath = Server.MapPath(alteredname);
FileInfo file = new FileInfo(filepath);
Response.AddHeader("Content-Disposition", "Attachment;FileName:" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "APPLICATION/OCTET-STREAM";
Response.Flush();
Response.TransmitFile(file.FullName);
Response.End();
but the downloaded file is losing extension. I am getting the file in the name of the page form which I am downloading.
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May 7, 2015
In gridview i have two link button that is "VIEW" and "DOWNLOAD" if i click "view" that pdf file wll display in an other page if i click download that file will be downloaded.. how can i do this..
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Dec 21, 2012
I am downloading file in the asp.net application , where i need to hide the cancel button .i have to show only save button.
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Feb 3, 2011
I have this download button, which is inside the update panel. due to the post back issues, the download button is not working and the whole page posts back. is there any way to remove that button alone from the hold of the update panel and make everything else work under update panel.
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Jan 3, 2010
I've created my wonderful winforms app that I want to unleash upon the world, and now I am trying to create a simple website to host some basic information and link to the setup file (msi installer file ).
I have a button on the asp.net page and the setup file setupApp.msi in same folder as the asp.net page. I am currently trying the following:
Response.Redirect("http://./SetupApp.msi");
But this best guess at what to do is not working. Is there something wrong with Mime types here? What do I need to put in the click event to allow users to download this file?
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Feb 24, 2011
how to put a download button on each row of generated gridview and check extension name (.doc,.xls,etc)
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Jul 24, 2010
I have a databound Gridview (with a LINQ datasource). The gridview displays questions from the SQL DB to the user. I've inserted a radio button list into the gridview with 3 horizontal radio buttons with fixed values of 1,2,3 for the user to select. I have a question ID, a tempuserID, and AnswerValue columns set up in the database. It all works nicely.
After the user selects radio buttons, I would like for them to push a button to submit the QuestionID, the associated Radio Button Value (AnswerValue) and their tempUserID into the DB. How do I do this? I'm not sure what to do next and what VB/LINQ code to put in the code behind file in the button click event handler. I'm also not sure on what to use for the tempUserID, can I use the sessionID? I'm using VB and here's my code:
[Code]....
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Apr 12, 2010
i want to download a zip file from a gridview on link button's click event from following code but it download blank zip file & every time file size is 22 bytes.
[Code]....
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Nov 11, 2010
I'm working on an ASP.NET application. Currently when the user clicks "Save" on an item, we disable the Save button, change its text to "Saving..." and so on. This works fine, because the button causes a postback which results in a new page being loaded, on which the Save button is no longer disabled.
We now want to apply this to other actions: Publish (not much different from Save), Import (again, much like Save, but based on data the user has uploaded in a previous step), Export (downloads an XML file to the user) etc.
Export is causing me problems - the button stays disabled. I think this is because the server sends back an XML file rather than a new web page, and so the browser just displays the same page.
The server-side code is along the lines of
Response.Clear();
Response.BufferOutput = true;
Response.ContentType = "text/xml";
Response.AppendHeader("Content-Disposition", "attachment; filename=" + whatever);
[push file contents into Response.OutputStream]
Response.End();
a way of making the server send a fresh page back in the response as well as the XML, thus re-enablnig the button in the same manner that the other pages do, ora way of getting the browser/JS to re-enable the button once the file has been sent.
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Apr 13, 2012
In my project, I've created a download button. This button shall perform 3tasks:
1. Change label text
2. Download file
3. Make the button invisible
The following code changes the label text and make the button invisible:
Code:
Protected Sub btnDownload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDownload.Click
lblDownload.Text = "<h3>Thank you for downloading </h3>"
btnDownload.Visible = False
End Sub
When I add a piece of code that handles the file download, the label text is not changed and button remains visible.
Here is the code:
Code:
Protected Sub btnDownload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDownload.Click
Dim URL As String = "~/myfile.exe"
Dim fileInfo As FileInfo = New FileInfo(Server.MapPath(URL))
If fileInfo.Exists Then
Response.Clear()
[Code] ....
File downloading cancels other operations.
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Sep 20, 2015
My gridview is inside master page now in the link button used inside gridview for downloading, it is not downloading a file.
I followed this article : [URL] .....
It works in child pages, but when i use gridview inside master page and follow this article , it wont download a file. Here's my coding for beck end :
protected void DownloadFile(object sender, EventArgs e) {
try {
string filePath = (sender as LinkButton).CommandArgument;
Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(filePath));
Response.WriteFile(filePath);
Response.End();
} catch (Exception) {
throw;
} }
Rest coding in html is same as mentioned in article.
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Jun 16, 2015
I used updateProgress for Downloading File on button click.
it works but when downloading Completes, progress bar did not disappears.
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Jul 28, 2010
I have an ASP.NET page (using ASP.NET AJAX and the Telerik RAD components) that provides a data table and an option to download data in CSV format.I have a requirement that a single button allow the user to download a data set. I have a system set up that's nearly working for me based off the solution in
http://stackoverflow.com/questions/104601/asp-net-response-redirect-to-new-window
<asp:Button ID="ExportCsvButton" runat="server" Text="Download to CSV/Excel"
byte[] csvBytes = someLongOperation();
Session[EXPORTED_SESSION_KEY] = csvBytes;
Response.Redirect("myexportpage.aspx", true);
protected void Page_Load(object sender, EventArgs e)
{
Response.Clear();
Response.ClearHeaders();
Response.ClearContent();
Response.AppendHeader("content-disposition", "attachment; filename=" + "file.csv");
Response.ContentType = "text/csv";
Response.AddHeader("Pragma", "public");
Response.BinaryWrite(Session[OtherPage.EXPORTED_SESSION_KEY] as byte[]);
Response.Flush();
Response.End();
}
This actually works quite well. When I click the 'Export to CSV' button, the page's UpdateProgress kicks in and my loading overlay appears (it's a CSS div that covers the window when visible). This can take some time depending on the data set (potentially several minutes), at which point I'm getting a window popup with my file.
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Mar 24, 2010
On daily basis, I am saving a file in my PC. The name of the file is same but with different date including date. What I required to just there should be a gridview with hyperlink button(Download File) columns like this:
ReportDate Extent Status HostedOn HostedBy
DownloadFile 24/Mar/2010 0700 Hrs Daily Not Added --
DownloadFile 23/Mar/2010 0700 Hrs Daily Added 23/Mar/2010 James
DownloadFile 22/Mar/2010 2100 Hrs Daily Added 22/Mar/2010 Mike
DownloadFile 22/Mar/2010 0700 Hrs Daily Added 22/Mar/2010 James
When user click "DownloadFile" button then it should go to particular folder in server and download file. he task is very important and urgent for me.
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Dec 1, 2010
I have a gridview with hyperlink button in every row. Gridview is bind with some datasource.
Just what i want to do that when user click on hyperlink on particular row hyperlink button it should download a file.
The files are going to be saved daily in a share folder.
Secondly, I don't want to give user an option to open that file, means when user clicks hyperlink a dialog box should appear with open button.
how to find particular file as per date from share folder and download.
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Jul 26, 2010
I am downloading file from database using the following code. This code downloads an excel file from the database which has a macro attached to it when it is opened. This macro reads file name of the excel file and uses it for its computation. Everthing works file if user saves the file on his harddisk and then open if but if he directly opens the file from the dialog(by hitting 'Open' button) then file name of the opened excel file comes out be the name of the webform that has the above code and this leads to error in the macro. Is there any option through which i can control the name of the file if user directly opens the file from dialog or the option to disable or remove 'Open' button form the dialog?
[Code]....
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Jan 4, 2010
i am using amazon s3 service. now i want to show download dialog box in my asp.net application when user come on download page. i am using amazon sdk.
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Oct 13, 2010
I'm about to submit my pad file to multiple sharware sites but the pad file has to have a direct link to the download file and can't link to a download page which is what I would like to do, so I can track the traffic and get the downloader's email before allowing the download. I am running an ASP.NET site in VB. Is there a way to tell the web app to redirect to a specific aspx page when it receives a request for a specific file?
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Jun 10, 2013
I have added linkbutton inside gridview to download, below is my code..
protected void lnkDownload_Click(object sender, EventArgs e)
{
try
{
[Code].....
its giving me following error
"Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack"
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