How to identify the original file type and restrict the file uploading while using file upload control
Hi asp.net , I am uploading a file using FileUpload control in asp.net using vb.net.I wrote the code to upload only PDF files. the user can change the extension and change to PDF . I have to check is the file original PDF or not then i have to upload the PDF files only . How to do this ??
Hi, Check the file Mime type for "application/pdf" by looking at the: FileUpload1.PostedFile.ContentType RegardsSmcoxonNo Gem is ever polished without some friction.
Hi smcoxon , Thanks For Replying ,But i found that there is no use using
PostedFil...
Add link buttons to each file uploaded using File upload control
Hi,
In my application I have one file upload control. When the user selectes a file to upload and when he clicks on Attach button I need to show him the file name of the file he selected to upload and also show the Remove link button after the file name. In this case I need to generate link button dynamically.
I wrote a code like the following:protected void btnAttach_ServerClick(object sender, EventArgs e)
{string strFileName = MyFile.PostedFile.FileName;string c = System.IO.Path.GetFileName(strFileName);
listBoxAttachedFiles.Items.Add(c);LinkButton b = new LinkButton();
b.Te...
Is there any limitation of file types that file upload control can be used to upload?
I am working on a content management system which requires me to upload WebEx recording files (.wrf) through file upload control. But I am getting "internet explorer cannot display the webpage" error. It worked with other files types as txt, doc, xls, pdf, jpg, gif etc. Is it related to any security issue or just a bug with the file upload control?
Thank you.
The file upload control doesn't have any file type limitations that I'm aware of, but it does have some size constraints. By default, ASP.NET is configured to not accept any file's larger than 4...
without server side scripting, can we upload a file using client side scripting if destination folder and config file settings are known? is it possible?
without server side scripting, can we upload a file using client side scripting if destination folder and config file settings are known? is it possible?
avdp211:without server side scripting, can we upload a file using client side scripting if destination folder and config file settings are known? is it possible? I don't think it is possible.You use the the HTML input file control and when you post the request, on the web server you need to read the data and save it to a file, so there has to be some interaction with the server to handle the post request.
Not possible vi...
Upload Image In Gridview using File Upload Control
Hi,
I have question that i want to upload image in Gridview for differt users. And i also don't know how to fix size while upload the image.Can You please tell me how to upload images for the different users and how to fix size so i can save all users name with their own logo image.
I just have started work with asp.net so i will be very thankful to you if you can give answer with code.
Hi, Nisha Shah
Based on my experience, please refer to the following code:
//HTML
<asp:GridView ID="GridView1" runat="serv...
When I upload a text file from client to server using stream, how can I guarantee that the uploaded text file can be displayed correctly?
When I upload a text file from client to server using stream, how can I guarantee that the uploaded text file can be displayed correctly?
A user want to upload a text file from client PC to server (normally it is Windows 2003), but I'm not sure which OS it is in client, maybe it is a english version Windows or chinese Windows (default encoding is GB2312).so the encoding of text file in client maybe is ASCII or GB2312.I think that "StreamReader myRead= new StreamReader(FileUpload1.PostedFile.InputStream,Encoding.Default) will be run in server,so "Encoding.Default" will be the default encodin...
How to use client-side script(javascript) in DNA using .Net Remoting
Hi all,
It was known that SAO and Singleton object about .Net Remoting. When I Create an object in server side and hosting in IIS's virtual directory,I want to use javascript asynchronous invoking the remote object by HTTP channel, 80 port and SOAP formatter just like XMLHTTP invoking web service. My code as following,
<script>
objXmlDoc = new ActiveXObject("Msxml2.DOMDocument");
objHttp = new ActiveXObject("Msxml2.XMLHTTP");
strEnvelope = ??
objHttp.onreadystatechange = function()
{
......
}
szUrl = "http://ServerNa...
Upload file from remote Computer using File Upload
Hi,
How to upload file from remote computer. Can i browse it thruough the File Upload control ?
Please help?
RamarjunK:Hi,
How to upload file from remote computer. Can i browse it thruough the File Upload control ?
Please help?
you can. when the file open dialog box comes, choose my network places, select the corrosponging share, specify the credentials. then choose the file.you haven't do any thing special, coding is same .Give a man a fish and you feed him for a day. Teach a man to fish a...
how to get a video file size using javascript while uploading it
i would like to get a video file size in javascript while uploading it using file upload control.. please help me.... ThanxRaj.
You can't do it before or while uploading. You can only do that AFTER the file has been uploaded and saved on the server.
NC...
...
how to empty the file upload control using javascript when it is not valid ?
function checkFileExtension(elem) {
var filePath = elem.value;if(filePath.indexOf('.') == -1)
{alert("Browsw Path Can not be empty");return false;
}
var validExtensions = new Array();var ext = filePath.substring(filePath.lastIndexOf('.') + 1).toLowerCase();
validExtensions[1] = 'xls';validExtensions[2] = 'xlsx';
for(var i = 0; i < validExtensions.length; i++) {
if(ext == validExtensions[i])return true;
}alert('The file extension ' + ext.toUpperCase() + ' is not allowed!');return false;
}...
Upload multiple files to the server without using File Upload
I want to upload multiple files to the server without using input type file (File Upload). Is there a way to do this. What I want to do is retrieve multiple file paths (paths are displayed in a user control like text boxes) and upload those files to the server as a bunch. I tried to set the value of the File Upload cotrol (using javascript) but it was not succeed since attributes of the File Upload are readonly. (document.getElementById("fileUploadValue").value = "C:\Test.txt")
Is there a way to override the values in File Upload control or is there a way to up...
How to upload file without using file control...???
Hi,
I have List of file path of Client. say "C:/WordDoc/Document1.doc". Now i want to upload this file to server.I dont want to use File Upload or Input File HTLM Control. Only i have is Path in some lable or text box.
Now, How to upload this file from client to server? I dont have idea on it.
Java has Third party API for uploading but i dont have idea on it.
Can one help me on it.
Whether some ActiveX or API avialble to do so.
Thank You In Advance...!!!
---Bhavin
I can't see any worthwhile reason to not use the FileUpload control, but.....
http://www.aspfree.com/c/a/....
Uploading Files without using File control
Hi Everyone, I'm in need of a feature where i need to upload a file without using File control. Anyone have pointers to go about it ? I've already gone through this tutorial: http://www.15seconds.com/issue/010522.htmbut when i try to run the code it gives me the error on window 2000 PC:"Safety settings on this computer prohibit accessing a data source on another domain."even though security setting set to "Low". And on XP machine i get the error:"Can't create automation server" (or something like that not entirely sure)My actual requirement is to upload a file using AJAX.Help will be gr...
Upload file withouit using the file control
hi
is there a way to upload files withouit using the file control
Not that I know of. I would require some kind of component to be installed Client Side (ActiveX etc.). Read this article for more information.RegardsAndre Colbiornsen ---------------------------------Seventh DayRåbygatan 1A,SE-223 61 LundSwedenMob.: +46-(0)708-97 78 79Mail: info@seventhday.se--------------------------------...