Get File Upload Data From Post Data?
Dec 13, 2010
I am looping through the posted values on a form with a view to doing something with them (so don't have access to the controls themselves). This is the process I have to take on this project so that is why I'm doing it this way.
On the form I will have a file upload box but I am not sure how I would upload the file that has been selected from it as I can't just do Control.SaveAs(). When I return the posted value using Request.Form.Item[i] I get the file name I chose but not the full path like I would expect.
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Similar Messages:
Jun 17, 2010
Here is my code to post the file. I use asp fileupload control to get the file stream.
HttpWebRequest requestToSender = (HttpWebRequest)WebRequest.Create [URL]
requestToSender.Method = "POST";
requestToSender.ContentType = "multipart/form-data";
requestToSender.KeepAlive = true;
requestToSender.Credentials = System.Net.CredentialCache.DefaultCredentials;
requestToSender.ContentLength = BtnUpload.PostedFile.ContentLength;
BinaryReader binaryReader = new BinaryReader(BtnUpload.PostedFile.InputStream);
byte[] binData = binaryReader.ReadBytes(BtnUpload.PostedFile.ContentLength);
Stream requestStream = requestToSender.GetRequestStream();
requestStream.Write(binData, 0, binData.Length);
requestStream.Close();
HttpWebResponse responseFromSender = (HttpWebResponse)requestToSender.GetResponse();
string fromSender = string.Empty;
using (StreamReader responseReader = new StreamReader(responseFromSender.GetResponseStream()))
{
fromSender = responseReader.ReadToEnd();
}
XMLString.Text = fromSender;
In the page load of CrossPage.aspx i have the following code
NameValueCollection postPageCollection = Request.Form;
foreach (string name in postPageCollection.AllKeys)
{
Response.Write(name + " " + postPageCollection[name]);
}
HttpFileCollection postCollection = Request.Files;
foreach (string name in postCollection.AllKeys)
{
HttpPostedFile aFile = postCollection[name];
aFile.SaveAs(Server.MapPath(".") + "/" + Path.GetFileName(aFile.FileName));
}
string strxml = "sample";
Response.Clear();
Response.Write(strxml);
I don't get the file in Request.Files. The byte array is created. What was wrong with my HttpWebRequest?
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Oct 5, 2010
I'm using a asp file upload control, however, when other controls trigger some post back actions, the file upload value return to null...any sample code i can follow please?
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Mar 23, 2011
I'm trying to upload a file to an ASP 2.0 web service through HTTP 1.1 POST from a client-side application. If my web service function is declared as
<WebMethod()>
Public Function UploadFile(ByVal file as Byte(), ByVal fileName as String) as String
...
The test form says the request should take this form:
POST address_of_service HTTP/1.1
Host: <host>
Content-Type: application/x-www-form-urlencoded
Content-Length: length
file=string&file=string&fileName=string
How do I get my binary file data into that form? I've tried just converting the file data to a string and putting it in the body (file=<string_data_here>) but I get HTTP 500 errors back, complaining about not being able to convert it to System.Byte. I've got HTTP POST working fine elsewhere in my application with plain string parameters. Also, out of curiosity, why is it showing the file parameter twice?
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May 6, 2010
I was just wondering if its possible to do an ajax post a file in asp.net mvc,basically i have a form with two buttons, one of the buttons extracts images for the selected document and displays them for the user to choose thumbnails for the document he is about to upload. The usee then fills out the rest of the form and then saves the document.With the image extraction, I was owndering if it was possible to do that as an ajax post. The other submit button can work as a normal http post
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Aug 30, 2010
I am trying to go to a view with a speicifed batchId parameter wrapped in a ViewModel, pick a file to upload, get the uploaded file back and store the file data w/ the associated BatchId value in a database.When the form is submitted I don't know how to get back the viewmodel and the PostedFileBase so that I can get the BatchId value.I need the batchId value to associate it with the data I am storing in the database.I have the following Action Method in my Controller to allow adding new customers to the specified batch by means of a file upload and import:
public ActionResult AddCustomers(int batchId)
{
var viewModel = new AddCustomersViewModel() { BatchId = batchId, //other view
[code]...
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Mar 1, 2011
im tryign to do an upload using an aspforview, does this mean i have to do a findcontrol for all the items to get the results?
as in the uploadfile func it cant find any of the fields, how do i do this?
also id like to get the filesize, type and name back so i can put them in a database
[Code]....
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Feb 24, 2011
ones i select file i want to process that file directly not need to click another button to process
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Jan 24, 2011
I am using file upload control and the captcha.After fulfill the form and upload the file , if user enter the wrong captcha test and click on button the uploded file being disaaper .I know this is the shortcoming of file upload control but client required thatIt needs to not clear the photo Plz help me out so that i can maintain the uploaded file state and have to capable so that user does not need to uploaded file again.
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Mar 3, 2011
i want to crete some runtime control in asp.net hence i create one html file & for that i use JAVASCript for repeat that contols.i want to save the data enter into that control.but how it post to .aspx file & how the data save into database
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Jun 20, 2013
I uploaded above 10 mb file i am getting this error..
"String or binary data would be truncated. The statement has been terminated"
my datatype in database is set as varbinary(MAX) then also i am geeting error
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Apr 3, 2014
I am using AsyncFileUpload to upload the file on OnUploadedComplete event i am binding the gridview with new datasource.On debugging its show that gridview is binded properly but after uploading the file gridview is not refreshed.My Gridview is not inside update panel
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Apr 27, 2016
I want to code for csv file upload and read gridview in visual stuio 2010 MVC 4 ....
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Feb 21, 2011
I have implemented a generic handler to work as a restful web service in ASP.Net. I have a problem receiving the XML file that is being posted to this web service. I cannot actually see anything being passed. I have gone through the form, querystring, and file properties of the request object. Everything is empty. I know that the file has been posted correctly because I can see it while using a port sniffer.
How can I access this file?
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Jan 13, 2010
I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
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May 23, 2010
in my file1.aspx: i have a search date from [textbox: date1] to [textbox:date2] and a submit button. in my file1.aspx.cs i can list all the dates from date1 to date 2 given using a for loop.Howan i list all the dates in my file1.aspx under my search tool.
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Mar 3, 2010
I'm new here and i'm new to ASPX. I read some articles, i have search the web for my problem, but i can't find my answer
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Aug 4, 2010
I'm well aware of how to get files from the client to the server using standard ASP.NET techniques, however, I have a need to be able to retrieve data from a third party web page written in basic html and process the file data in an asp.net web application.
So if the basic html looks like this...
<form id="form1" action="WebForm.aspx" method="post">
<input name="fileUpload1" type="file" enctype="multipart/form-data" />
<input type="submit" value="click" />
</form>
How do I retrieve the file data in the page referenced in the action attribute of the form. So far I have tried the code below, which allows me to access the file name - but not the byte stream of the file.
protected void Page_Load( object sender, EventArgs e )
{
string fileName = Request.Form["fileUpload1"];
// No files appear in the request.files collection in code below.
foreach (string file in Request.Files)
{
HttpPostedFile hpf = Request.Files[file] as HttpPostedFile;
if (hpf.ContentLength == 0)
continue;
string savedFileName = Path.Combine(
AppDomain.CurrentDomain.BaseDirectory,
Path.GetFileName( hpf.FileName ) );
hpf.SaveAs( savedFileName );
}
}
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Mar 2, 2011
i try storing a file in database look at my code
[Code]....
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Mar 18, 2010
I want upload txt file data to sql table. I cant use sql server master db. so i cant use sql bulk uploader to do this.This is my code
FileUpload1.PostedFile.SaveAs( Server.MapPath("~\cvs\"+ FileUpload1.FileName ));
string pth= Server.MapPath("~\cvs\"+ FileUpload1.FileName );
Label1.Text = FileUpload1.FileName;
[code]...
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Mar 1, 2010
I need to upload a file to the Data folder which I added in the project I did like this
default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[Code]....
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May 7, 2015
I was referring muddasar's one of the article for the validation. Below is my code and i am trying to validate the file upload selected file format on the submit button. I have 4 upload control and fu1 is mandatory field and others are not mandatory fields. Though i need to validate all the four uploads if the files have been selected. My full sample code is below for easy testing,
<asp:FileUpload runat="server" ID="fu1" />
<asp:Label ID="lblMessage1" runat="server"></asp:Label>
<asp:FileUpload runat="server" ID="fu2" />
<asp:Label ID="lblMessage2" runat="server"></asp:Label>
[code]...
I am doing slight mistake on the return to the main function. if i test indvidual function it works fine. whereas if i include the 4 functions in one function with the return statement, it's not validating. goes to to the server.
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Jan 19, 2011
I am new to wcf . I want to implent one wcf service like upload xml file from cient to wcf service .
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May 17, 2010
I have a website that uploads different file types, creates thumbs from the files and saves the file and thumbs to their respective folders. every so often it throws an exception string or binary data would be truncated, Ive never encountered this locally. I have a problem pinning down the circumstances that it happens, I thought it was documents with spaces in the name but that works sometimes as well. This is really bugging me and I need to fix this. The db table fields are long enough, trust me . Has anyone else ever encountered this issue?
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Oct 25, 2010
I'm using a DetailsView control and have a FileUpload control in a TemplateField for uploading images to a database. However, I'm not sure how to take the image name e.g. Button.png as a value and enter it into the database.
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