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)
I have a binary file in database.How i can make a download of this file in header of page when a button is clicked
View 2 RepliesI'm downloading a binary file from a SQL database to a client machine and want to instead download it to a folder on a server. THe code I'm using is below. How would I change the .AddHeader(I assume) to send the file to a folder on my server rather than the computer running the web page.Protected Sub download(ByVal dt As DataTable)
View 3 RepliesI am a newbie of asp.net.
The environment is .net 3.5 and C#.
There are files stored in sql server (datatype of column is varbinary in the database).
each record is in one record in that table (FILE_TABLE).
And there is another table (PATH_TABLE) to store the files paths.
for example,
when the user download the folder A (select an item on the tree and click a button on the client side),
there is one sub-folder B and two files A-1 and A-2.
in folder B, there is two files B-1 and B-2.
then, at the code behind (server), the server will get the files from the database and convert them (including the files and subfolders) to a .zip file (or other compressed files)
and then write a response (using the method HttpResponse.BinaryWrite(Byte[] xxx) )
to client side and let the user download.
after the download, the user can extract the compressed file and the structure of the folders and files keep unchanged.
I am learning a tutorial, it is about saving mp3 files in database.
Have a look below picture i can upload a mp3 file multiple time with the same name how to avoid it?
[URL] ...
protected void btnUpload_Click(object sender, EventArgs e)
{
using (BinaryReader br = new BinaryReader(FileUpload1.PostedFile.InputStream))
{
byte[] bytes = br.ReadBytes((int)FileUpload1.PostedFile.InputStream.Length);
string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
[Code] .....
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..
i have table and i save image into table format binarry,but i want zip this image that user can download multiple image from website
i wrrite this code but this code download one image......
//string name = item.Name;
//string contentType = item.FormatImg;
//Byte[] data = (Byte[])item.Image;
//// Send the file to the browser
//Response.AddHeader("Content-type", contentType);
//Response.AddHeader("Content-Disposition", "attachment; filename=" + name);
//Response.BinaryWrite(data);
//Response.Flush();
//Response.End();
I have designded a asp.net server control that have an embeded javascript file.
document.getElementById("div_Messages_Back").style.left = 0;
document.getElementById("div_Messages_Back").style.top = 0;
document.getElementById("div_Messages_Back").style.width = document.documentElement.clientWidth;
document.getElementById("div_Messages_Back").style.height = document.documentElement.clientHeight;
document.getElementById("tbl_Messages").style.left = (document.documentElement.clientWidth - 250) / 2;
document.getElementById("tbl_Messages").style.top = (document.documentElement.clientHeight - 120) / 2;
function btn_Close() {
document.getElementById("div_Messages_Back").style.visibility = "collapse";
document.getElementById("tbl_Messages").style.visibility = "collapse";
}
I want the first 6 line of my javascript file run at runtime. But I recieve error at runtime:
Error: Object Required.
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?
View 1 RepliesIs it possible to convert a datatable into binary data and save it into on a binary field on database?
View 2 Repliesi have an form with an button and some input controls. some time due to input problem i may get error after that if i refreshed the page then that time the button click event has fired, how to avoid this kind of bad event fire.
View 3 Repliesin my web form i have a department dropdown box, in its selectedIndexChanged event i have to fill the equipment dropdown box and in equiment dropdown selectedIndexChanged i have to fill out the other textboxs.
the depratment dropdown box get its value from sqldatasource.
[code]....
what i want is when i run the page, it shows the very first deparment in the list, and according to that it should pop up the values in the other fields, means it should show the values in the equipment dropdownbox and from that one it should pop up the values in the other textbox.
here is my selected indexchanged event for department dropdownbox
[Code]....
Actually I want to get a file and save its length, its MIME type, content into database in binary format.
It saved but not open in hander in correct format.
[code]....
I wish to know how to convert the byte array file to a file in a string format and display it in a webpage. how can i perform this?
View 1 Repliesi have a table fileupload with id,username,filename,filedata,uploaddate here i have uploaded successfully...but i cannot retrieve the binary file uploaded by using its id. can anybody tell me how to read binary file from database using c#.net3.5?
I have created a small website, which has a list of some customers database. Now, i want to back up the mdf file i used in the website, from the website itself by logging in as an adminstrator. when i am logged in as Admin and press a button called "DOWNLOAD", the download of the database file(.mdf) should start.
View 1 RepliesI am trying to grab files from my database and allow the user to download it. I can generate an image or a text file, though they appear directly on the webpage with no downloading(i have comment this out) but I want to be able to download any kind of file right onto my computer. Any help? I was consider using memory stream but unsure on where
[Code]....
I have made a database and uploaded a few different types of files. PNG files will download from the database but PDF & DOCX ones will not. Instead of downloading the app offers the ASPX page (download.aspx) to download.
View 1 Repliesi am use this code for download..download is correct but after downlaod when open file type zip file or pdf see this error..jcoverflip-1.0.2.zip: The archive is either in unknown format or damaged
protected void LAtt_Click(object sender, EventArgs e)
{
string str = String.Empty;
Conn = new SqlConnection(ConfigurationManager.ConnectionStrings["bakerConnectionString"].ToString());
Cmd = new SqlCommand();
Cmd.CommandText = "SELECT * FROM Tcomplaint where id_complaint=@id_complaint";
[code]....
How do I create a new event in a base page class that fires after all derived pages have fired their load events but before any controls fire their load events.
The following code fires the event before the derived page's load event. I want it to fire the event after the derived page's load event but before all control load events:
Base Class:
Public Event FirstLoad(ByVal sender As Object, ByVal e As System.EventArgs)
Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
RaiseEvent FirstLoad(sender, e)
End If
End Sub
Derived Class:
Private Sub Page_FirstLoad(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.FirstLoad
'Stuff here happens before controls load but only on first page loads'
End Sub
I have a update panel on the ASPX page,When thepage loads the content in the update panel shouldnot load ( Update panel should show the Updatepanel progress control) but after page load update panel contents should load . How do i get this efect.
View 3 RepliesI am using a third party gateway. The third party gateway does not support query-string , so i will need to post the form to pass the values to the given URL and another thing is that they don't expose the web-services so we need to use their page and that means we need to host it in an iframe in asp.net
so what i did is that i have hidden fields that will be used as parameters as depicted below
Code:
<input type="hidden" name="p1" value='4635' />
<input type="hidden" name="p2" value='Reference_test' />
<input type="hidden" name="p3" value='Purchase credits' />
[Code]..
Now the purpose of this , is to load the iframe after the page load event of the asp.net gets fired.
Now my problem here is that when the iframe loads , it does not pass the parameters to the url that is being set in the iframe.
I have attached the example, project. (2kb)
When you run the project you will notice when the iframe loads there is an Error
"NO VCS ID"
now this means that the parameters were not passed when the Iframe loads , i can understand because it seems like iframe does not do a full form post. so to demonstrate what i want, click the proceed button and you will notice it will give you a page with no errors and it will be a page where credit card details are required , i want to iframe to load that the first time.
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 RepliesSo, I would like to enable user to perform some download function for image.
I'm storing the image to the database as binary data by the way.
how to download that image?
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 Replies