Web Forms :: How To Change File Name If The File Already Exists In A Directory With C#
Mar 1, 2011
I am doing a project, In that i have to store some content in excel file and should have to save as sample.xls. If the file is already Exists, then have to store sample1.xls and again if it is exists, then sample2.xls...like that.... How in c# code.
Actually, I have developed an Website. In that, one page contains a message text field, If a user typed some text & clicked save button, that content should be store in excel file and save in different name with sequence series..
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Mar 25, 2010
I have a full working web site that i ported to a new hosting company. In some pages i have links to PDF on the server (they do exist!) On the old server no problem. On the new one when user clicks on the link : error 404 file does not exist.. Should i look in the web.config ? i don't know where to start
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Nov 1, 2010
ok i have a file link not in the vs 2010 project .basically i have a list page in which i want to show the files, one file each for different organization. how can i make a link to that xml file which exists outside the project
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Jan 4, 2010
I am using Directory.Move() and am getting the following error "Cannot create a file when the file already exists". I am passing 2 params:
Code:
Param1 = "D:IntegrationSiteImagesFolder1"
Param1 = "D:IntegrationSiteImagesFolder2"
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Oct 20, 2010
I'm trying to do this on a DotNetNuke site with multiple portals, so I want to do this server-side VB loads a javascript file if it exists.
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Jul 29, 2010
I have two websites. One site contains nothing but image files. This is a sub-domain of the main website. The main website allows the user to search a database of information and displays that information. I create a grid with a link to the file. In my row_databound function, I want to check to see if that file exists on my other website. If it doesn't I remove the link, otherwise I leaves a link to that file. how to verify that the LINK actually goes to a file that exists?
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Dec 15, 2010
I am trying to check if a file already exists before uploading a file. I have the following code but it doesn't work whether the file exists or not.
[Code]....
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Dec 7, 2010
What is the way to :
1) Check if a file exists on an FTP site.
2) Sample the size of that ftp file (3) times to ensure the file is ready for downloading.
We have some classes doing this already but they are using WebRequestMethods.Ftp.ListDirectoryDetails and then searching there in if file exists. I am hoping there are some clean ways to do this.
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Aug 5, 2013
I want if a file exists then it ask for "do u want 2 overwrite ?" with yes or no confirmation ,,, if yes then overwrite otherwise not.
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Sep 20, 2015
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] .....
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May 7, 2015
according below thread I change file name when users upload from file upload control:
[URL]
below is my code that I changed
if(this.fuppdf.HasFile)
{
string path = Server.MapPath(".") + "../image/House/article/pdf";
[Code]....
if file name be duplicate it add 1 at the first of file name but here it doesn't work I mean when I upload file i.e catalog.pdf ("catalog is the text in txttitle) it saves in the host with this name catalog.pdf
but when again I want upload catalog.pdf in host it overwrite last (catalog.pdf) but I want if there was catalog.pdf file it saves with this name 1catalog.pdf in host
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Mar 18, 2010
Test to know if a file exists already or not using DetailsView with c#?
DetailsView :
DetailsView source :
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Insertclient.aspx.cs" Inherits="Insertclient" Title="Insert client" %>
<%@ MasterType VirtualPath="~/MasterPage.master" %>
[Code]....
before inserting a new Cod-client i want to know first if the Cod_client exists already or not and where to insert that cod in my application ,
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Feb 26, 2010
I want to create C# code that checks a hyperlink in a repeater and checks if the file exists. If not, the hyperlink is not visible. The path and document ar pulled from a sqldatasource:
[Code]....
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May 7, 2015
I need a way of doing the following:
I receive data in .csv format. I have a some records on a table, so what I need to do is to check if the data I receive exist on the table of records that I need to match against.
If the record exist, then an email/sms should be sent to notify me that the records has been matched and then that record should be flaged that it has been tested so that I don't test it again as the incoming data are saved.
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Oct 18, 2010
it should be easy but i can't find the answer
and it's been a while since iv'e done something with asp.net..
what i have now is a regular html pages website.
in some of the pages i have galleries,
I would like to make an aspx page to manage the content of the galleries or any other set-in advance content.
It's kind of a CMS, but it's not, since i would not be using a database.
what i want is just to get the admin's content from the aspx page
and send it to overwrite the images or the content of the DIVS in the html page.
at the final outcome, i will only want to have html files and one aspx file for the admin's editing use.
what is the most simple way to do that without using CMS?
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Jan 11, 2011
When I update a js file in my asp.net project, I refresh the browser and the change shows up as expected. If I change a css file or an .aspx file, the change does not show in the browser. Not when I clear the browser's cache, not when I restart IIS (iisrestart). What could this possibly be?
PS. I have tried chrome and firefox
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Jan 4, 2010
I'd like to use a simple switch to display one image or another but I need a way to find out if the image exists.
If FILEEXISTS("pathtojpg") Then
'Display jpg
Else
'Display "no_image_yet.jpg"
End If
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Dec 25, 2010
How to check if a file exists on different domain?
If File.Exists("http://i1.asp.net/common/header/logo.png?cdn_id=01112010_2") Then
Return String.Format("<img src={0} alt='' />", "http://i1.asp.net/common/header/logo.png?cdn_id=01112010_2"
Else
Return String.Empty 'always ends here [:(]
End If
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Mar 24, 2011
I have a ASP.Net website with links to files stored on a file server. These files are modified constantly and so the links will not always be valid, this includes changes to permissions, files being moved or deleted, etc. I implemented a method in the code-behind to check the validity of these links as they are constructed, if it fails the code will add CSS to change the color of link:
Check URL
/// <summary>
/// Check if a URL exists. Method by http://www.vcskicks.com/check-website.php
/// </summary>
/// <param name="url">URL to validate</param>
/// <returns>True if the URL was resolved, false otherwise</returns>
[Code]....
My problem is that not all the invalid links are getting the style added to them. The strange thing is that when I step through the method in debug mode using one of the bad links that was not colored, the method will return false and color the link as expected. There's a lot more involved then what I present above, but I searched the entire aspx code-behind for any other locations where the link url is being set and couldn't find any. I don't know if there's some post processing going on that somehow clears any styles that were applied to some of the links. The fact that some links are colored while others are not is very confusing to me. Has anyone else encountered similar behavior before?
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Feb 5, 2010
I need to check if a text file exists on a site on a different domain. The URL could be:
http://sub.somedomain.com/blah/atextfile.txt
I need to do this from code behind. I am trying to use the HttpWebRequest object, but not sure how to do it.
EDIT: I am looking for a light weight way of doing this as I'll be executing this logic every few seconds
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May 18, 2010
I am taking backup for mdb file from source location to destination location.While using file.copy() function,how to check whether the folder is already exists or not.If exists means how to replace new one for existing one.Send C# code for replace new one for existing one.
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Jul 21, 2012
I have a .net aspx project done with VS 2008 using the .Net 2.xxxx framework. This ASPX application is deployed on and 4 different 2003 Server boxes. 3 are running in total beautifully. In the 4th box is my issue. I do a FILE.EXISTS conditional test looking for case file pdf's. These case numbers are structured as such 2012-C-0421,001,0008.PDF
Please note the comma's used in the path. 3 of the 4 servers in court houses recognize the path to the pdf WITH the commas in them perfectly and the FILE.EXISTS works 100%. On the fourth box (same config we THINK) the exact same FILE.EXISTS does not return a hit even though we see the document sitting in the folder via explorer. IF we remove the commas and make it 2012-C-0421001008.pdf all is fine and document is indeed discovered with the EXISTS.
WHY on this one server does the original ducument path not function. We can not ask the court houses to change the way they store their documents so I need to make this work like the other 3. Again... same version..same .net framework... same OS (2003 server)
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Nov 4, 2010
I am still in the same project. Its been so hard to complete it. Always one or other problem.
I am using sqlserver 2005 and vb.net and vs2008- not that any of this matter for this question.
My problem is that I couldnt' check if the record exisist in the db. How do I do it.
I have fileupload control but I want to check my db if the filename already exisit.
Thi sis my code.
[Code]....
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Mar 17, 2011
In my c# class I wrote I have a photo property that returns the photo source if the image exists (nothing or default image otherwise). In my code I use:
public string Photo
{
get
{
string source = "~/images/recipes/" + id + ".jpg";
if (File.Exists(source))
return "~/images/recipes/" + id + ".jpg";.......
If I get the FileInfo() information for this image I see that I tries to find this image in the following directory: C:Program Files (x86)Common FilesMicrosoft SharedDevServer10.0~images ecipes Of course the image is not located in that directory and File.Exists is returning me the wrong value.how can I fix this?
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May 26, 2010
I have a large web application that uses File.Exists() in a global file utility class flawlessy for several years now. I just built a new ASMX web service that calls that same method in our file utility class, and it returns False for the same exact file paths that are being passed in the web application. The paths are absolute system file paths, and they match on both the web service and the web app.I am confused... Why might this happen? The method I am talking about is only a few lines of code. A couple of lines simply validate the file id parameter being sent into the method. The last remaining line is this:
[Code]....
The previous line of code calls another method that uses a String.Format to insert the file id into the file path. That's it.
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