what is the best way to append data onto a file download? I figure that i can make my own class that implements InputStream and just consolidates two input streams (the file first, my additional data to append second.) but is there an existing view class that i can use to just return an InputStream or will i have to roll my own view class as well?
View 1 Replies
I have created a CSV file on the server and want to send it to the user using the following code:
Dim strPhysicalPath As String
strPhysicalPath = Server.MapPath( "CSV/" & PathVirtual)
Dim objFileInfo As System.IO.FileInfo = New System.IO.FileInfo(strPhysicalPath)
Response.Clear()
Response.ContentType = "application/vnd.ms-excel"
Response.AddHeader("Content-Disposition", "attachment; filename=" & objFileInfo.Name)
Response.AddHeader("Content-Length", objFileInfo.Length.ToString())
Response.WriteFile(strPhysicalPath)
Response.Flush()
Response.End()
This seems to work fine except when the downloaded file is viewed in Excell the html code behind the page from which it came is also appended to the file. Does anyone have any idea why it does this?
I have the following code for creating a file if it does not exist and overwriting it if it already exists:
FileStream fsExe = File.Create(DestExePath, 4096);
BinaryWriter bw = new BinaryWriter(fsExe);
What ever I write to the BinaryWriter, it is getting appended to the "DestExePath" instead of overwriting the original file.
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.
View 1 RepliesI'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?
View 1 RepliesI 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"
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.
View 1 RepliesI have a url of CCAvenue with only single date for reporting [URL] .....
I need to give my reporting team for an option so that they can get the data of more than one date. i.e. fromdate and todate. To achieve this I am selecting from date and to date and on button click I have written this code
protected void btngetdata_Click(object sender, EventArgs e) { DateTime start = DateTime.ParseExact(txtfromDate.Text, "yyyy-MM-dd", CultureInfo.InvariantCulture); DateTime end = DateTime.ParseExact(txttodate.Text, "yyyy-MM-dd", CultureInfo.InvariantCulture);
for (DateTime counter = start; counter <= end; counter = counter.AddDays(1)) { string url = string.Format("https://mars.ccavenue.com/servlet/ccav.MerchantReconReport?User_Id=M_npa20362_20362&Date=" + counter); } }
I want output of this url to download into CSV file.
I get this error when trying to download the file
Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.ID_LIT.View.GetData(SqlCommand cmd) at DotNetNuke.Modules.ID_LIT.View.Button4_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
I am using this example from your site:
[URL]
here is my code:
Public Function GetData(ByVal cmd As SqlCommand) As DataTable
Dim dt As New DataTable
Dim strConnString As String = System.Configuration.ConfigurationManager.ConnectionStrings("mystring").ConnectionString
Dim con As New SqlConnection(strConnString)
Dim sda As New SqlDataAdapter
cmd.CommandType = CommandType.Text
cmd.Connection = con
[CODE]...
i m creating asp.net Mobile website page to download symbian .sis file to mobile ,but its not geting download properly.its working perfectly on desktop.
View 2 RepliesI 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]....
I've got 2 DropDownList controls. The 2nd one is dependant upon the choice of the first.
This bit is working... sort of
When I make a selection in DDL1 I get the right list of items in DDL 2, but if I were to change DDL1, I get a further list of items appended to DDL2
It just keeps stacking up the list items.
I've got AppendDataboundItems to True, because I need a blank as the first item in order to use the SelectedItemChange event.
I have a DataGrid which is populated by a list of the .doc files in a folder.When one of the items in the list is clicked the browser should then download that file for the user to open. At the moment when one of the items is clicked the browser attempt to download the file from the root folder of the website, is there a simple line of code I can use to say 'download the file from "root/folder/folder/folder/filename.doc" instead of from "root/filename.doc"Currently I am using this code:
[Code]....
[Code]....
I'm new to asp.net. I have an exercise about datagridview.
Basically it's like this, I created a sql database in visual studio, added some tables and records. I added a gridview to my page and change the datasource to 1 of my tables. It displays every thing fine.
Now my exercise is, I need to add a new record to that table from a textbox control and button submit, and display in gridview after page reload.
DataTable dt = new DataTable();
I was following this tutorial and it worked perfectly: [URL] ....
I was wondering how do I archive this: the file name will be a link button (or whatever the best way is) and when click on the name, it will download the file (instead of haing an additonal "Download" column)?
1) I have a HyperLink on a master page:
<asp:HyperLink ID="HyperLink4" runat="server" ImageUrl="~/icons/NewProductsButton.jpg" NavigateUrl="http://www.ABC/DefaultNewProducts.aspx" >New Products</asp:HyperLink>
2) I have a content page TextBox with data equated in the C# code behind:
protected void Page_Load(object sender, EventArgs e)
tbxCategoryID.Text = CategoryCode;
... sample data "Furniture1135" for TextBox.
3) I need the MasterPage HyperLink4 navigateURL to be
[URL]
[URL]
How can I pass the TextBox value appended with the querystring tag "?CAT+" to the MasterPage HyperLink?
I have developed an application which has a database [access] and i have a gridview which showsthe records from the database. Now i want the grid view to be updated with some additional recordswith out removing the exesting records.
View 3 RepliesI am working on an asp webform that pulls from an ODBC datasource then puts the data in an sql server. Once the data is in the sql server several queries pull data from it to provide information for a report.
This is an example of what I am talking about
private
void ODBCpdEmployeeAb()
{
DataTable dt =
new
DataTable();
[Code]....
The first part gets the data from the ODBC connection and the next part stores it in an sql server table. The problem is I have these methods in the page load event of the webform so everytime it loads it just puts the exact same data in the sql server table which would then provide incorrect information on the report.
Is there a way to append the most recent data from the ODBC table to the sql server ?
Is there a way to give users the capability to download an on-line table produced via gridview to an excel file (other than by copy/paste)?
View 3 RepliesI am using some code similar to the code below to open a word document on my ASP.net app. Once the file has been downloaded and opened I then want to either redirect to another page or refresh the screen but nothing works after response.end and if i add it before response.end the browser never downloads the file?
[Code]....
[Code]....
I am using Visual Studio 2008 Express and I wish to select a file for downloading. I have seen websites that when you select the file for download, a small browser appears to ask you where you which to store this data to.How do I get that component ?? I know the path on the web design where my data is store, and if its must be a hyperlink, I can make a hyperlink to that path.All I wasnt is when the user select the file he wish to download, a small browser appears to ask where he was that store to.Can someone tell me what I need to do to get that ?
View 7 RepliesOn 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.
how to download a file , from sql server 2005 to local disk.
using asp.net and c# as my code behind, when i click on gridview column, a pop up windows should appear asking fr the path to save in local disk, when name is entered and save button is clicked, that particular file should get saved in disk.
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..
View 1 RepliesI 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.
