Develop Reference

How to Get current date and create directory Everyday in C#?

get current date and make directory and second when directory is created, in that directory I have to store excel file and also save file as current date.
String Todaysdate = DateTime.Now.ToString("dd-MM-yyyy");
if (!Directory.Exists("C:\\Users\\Krupal\\Desktop\\" + Todaysdate))
{
Directory.CreateDirectory("C:\\Users\\Krupal\\Desktop\\" + Todaysdate);
}
This code have made directory with current date.
But when I want to store file in that directory, it generates the error:
Could not find a part of the path
'D:\WORK\RNSB\RNSB\bin\Debug\22-01-2020\22-01-2020.XLS
Belove path is store excel file that i have to store.
using (System.IO.StreamWriter file = new System.IO.StreamWriter(Todaysdate+"\\"+DateTime.Now.ToString("dd/MM/yyyy") +".XLS"))

Actually you are making the directory in a path then you are saving the .xls in another path.
You are making the directory using this path:
"C:\\Users\\Krupal\\Desktop\\" + Todaysdate
Then, here the path where you are trying to save the .xls:
Todaysdate+"\\"+DateTime.Now.ToString("dd/MM/yyyy") +".XLS"
The error shows the problem clearly, it could not fin this path:
D:\WORK\RNSB\RNSB\bin\Debug\22-01-2020\22-01-2020.XLS
While creating the .xls you are omitting the root path, so the process looks for the path 22-01-2020\22-01-2020.XLS in his working directory D:\WORK\RNSB\RNSB\bin\Debug.
You just need to align those paths: I sugget you to use relative paths, so here how you should fix your code:
String Todaysdate = DateTime.Now.ToString("dd-MM-yyyy");
if (!Directory.Exists(Todaysdate))
{
Directory.CreateDirectory(Todaysdate);
}
//then
using (System.IO.StreamWriter file = new System.IO.StreamWriter(Todaysdate+"\\"+DateTime.Now.ToString("dd/MM/yyyy") +".XLS"))

I presume you are running your WinForms application in Debug mode. This means that your current path is [your application path]\bin\Debug. If you look in file explorer, you will find that an executable has been created there. When using StreamWriter without an absolute file name, the file it tries to create is relative to the current execution path (in your case 'D:\WORK\RNSB\RNSB\bin\Debug'). StreamWriter will create a new file, if one does not exist, but it will not create a new folder, and you are passing it Todaysdate + "\\" which is effectively a new folder. Hence you are getting the error message.
To fix your problem, you need to provide the absolute path to your newly created directory thus:
using (System.IO.StreamWriter file = new System.IO.StreamWriter("C:\\Users\\Krupal\\Desktop\\" + Todaysdate+"\\"+DateTime.Now.ToString("dd/MM/yyyy") +".XLS"))

Winforms always expect directories inside Debug Folder, since it's EXE file is inside Debug and try to find it inside Debug folder.
In error it clearly shows that it is looking inside "Debug" folder.
Can you check whether File Exists in the mentioned folder created by you in C Drive.
// To Write File
System.IO.File.WriteAllLines(#"C:\Users\Public\TestFolder\WriteLines.txt", lines);
You can follow this MSDN Post, hope it helps, if Yes, please Upvote it
https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/file-system/how-to-write-to-a-text-file

Get Temp ASP.NET folder for application

I'm trying to get a specific application base ASP.NET Temp folder. I know we can use HttpRuntime.CodegenDir property to get the actual temp asp folder that the application is writing to. Is there any way I can get location to the base folder for that application in C#? Example:
<server>\c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\<AppName>

For any other who stumble on this question,
I couldnt find any direct way to get it. the way i resolved this is to get executing assembly location using below line
Assembly.GetExecutingAssembly().Location;
And then get to the parent folder which is the application name recursively using
var dir = new DirectoryInfo(path);
while (dir.Parent.Name != folderName)
{
dir = dir.Parent;
}
return dir.Parent.FullName;
which will give me the required path im looking for.

asp.net 404 - File or directory not found on website but locally it can

I have a folder "res/resx/" which contatins .resx files. What I want is to get all those .resx files.
Here is my code for that.
var Path = Server.MapPath("~/");
var SampleUrl = System.IO.Path.GetFullPath(System.IO.Path.Combine(Path, "Res/resx/"));
string[] files= System.IO.Directory.GetFiles(SampleUrl);
var AllFiles = new System.Collections.ObjectModel.ReadOnlyCollection<string>(files);
foreach (string sFileName in AllFiles)
{
Response.write(sFileName + " <br>");
}
This code is working on my local and i was able to see a list of my resx files. But when i deploy this to my website and access it, an error occurs on the 2nd line of code which says:
Could not find a part of the path
'D:\Websites\mywebsite.com\Res\resx'
I tried allowing directory browsing to see if my files exist. In my local, i can browse the files but on the website, I cannot. And it seems the system cannot find the folder "Res/Resx" too. it says:
404 - File or directory not found. The resource you are looking for
might have been removed, had its name changed, or is temporarily
unavailable.
But the folder exist and it is running on my local. Any advice as to what i should do or is their something i have missed? Thanks

Try this
string[] filePaths = Directory.GetFiles(Server.MapPath("Your folder"));

Look at the System.IO.Directory class and the static method GetFiles. It has an overload that accepts a path and a search pattern. Example:
string[] files = System.IO.Directory.GetFiles(path, "*.resx");
answered by
Anthony Pegram here.

How to copy a directory from local drive to a shared network using asp.net C#

Hello I am attempting to copy a directory and its subdirectories from my D drive to a shared network but I continue getting the error as
Exception:
Could not find a part of the path '/Projects/08.ASP.NETProjects/ProjectName/'.
My C# copy code:
System.IO.DirectoryInfo directory = new System.IO.DirectoryInfo(D drive path);
var destinationpath = "file:///BZ0025BZV43/Projects/08.ASP.NETProjects/ProjectName/";
var uri = new Uri(destinationpath);
var destinationurl = uri.AbsolutePath;
foreach (System.IO.FileInfo mydirectory in directory.GetFiles())
mydirectory .CopyTo(destinationurl);
I am new to FileHandlers. Please help.

Try to use uri.LocalPath instead of uri.AbsolutePath.
Also, be aware that you are trying to copy a file into a directory. But you have to copy the file into another file of that directory. (Directories are files too, basically).
So to do that check if the target directory exists and create it when necessary. Then replace .copyTo(destinationUrl) with .copyTo(Path.Combine(uri.LocalPath, mydirectory.Name)) and you should be good to go. And please rename the variable mydirectory to file or something similar.
Also note that you are not copying the directory tree recursively. So if you want to recurse the tree, you have to check for subdirectories and copy the files in that hierarchy, too.
You can also check out this example: http://msdn.microsoft.com/de-de/library/bb762914(v=vs.110).aspx

Visual Studio 2010 working directory

I'm developing a C# asp.net web application. I'm basically done with it, but I have this little problem. I want to save xml files to the "Users" folder within my project, but if I don't psychically hard code the path "C:......\Users" in my project it wants to save the file in this "C:\Program Files (x86)\Common Files\microsoft shared\DevServer\10.0\Users" folder, this is an annoying problem because I can't use the hard coded directory on our web hosts server. Also, I have a checkbox list that populates from the the "DownloadLibrary" folder in my project, and its suppose to download the files from that fold but its also looking to the "C:\Program Files (x86)\Common Files\microsoft shared\DevServer\10.0\" folder for download even though its populating from the correct folder. I'm very confused by this, its the first time something like this has ever happened to me. Can anyone please help me with this, its the only thing standing in my way to complete this project.

You don't want to use the working directory at all; you want to use a directory relative to where the web application is located (which can be retrieved from HttpRequest.ApplicationPath.
HttpRequest request = HttpContext.Current.Request;
// get the physical path to the web application
string pathToApp = request.MapPath(request.ApplicationPath);
string usersPath = System.IO.Path.Combine(pathToApp, "Users");
Update
As VincayC points out; asp.net development is not my strongest skill ;) The above code is essentially equivalent of this (much simpler) code:
string usersPath = HttpRequest.Current.Request.MapPath("~/Users");
If this code appears in the code-behind of a page, you can probably cut HttpContext.Current as well, since the page has a Request property.

That did fix the one problem I'm having, but the downloads are still not downloading from the right place, the program still wants to get the files from "C:\Program Files (x86)\Common Files\microsoft shared\DevServer\10.0\" directory here is the code I'm using
--Code to populate the checkbox--
HttpRequest request = HttpContext.Current.Request;
// get the physical path to the web application
string appPath = request.MapPath(request.ApplicationPath);
string directory = System.IO.Path.Combine(appPath, "DownloadLibrary/");
// Get the list of files into the CheckBoxList
var dirInfo = new DirectoryInfo(directory);
cblFiles.DataSource = dirInfo.GetFiles();
cblFiles.DataBind();
--Download Button Code--
// Tell the browser we're sending a ZIP file!
var downloadFileName = string.Format("Items-{0}.zip", DateTime.Now.ToString("yyyy-MM-dd-HH_mm_ss"));
Response.ContentType = "application/zip";
Response.AddHeader("Content-Disposition", "filename=" + downloadFileName);
// Zip the contents of the selected files
using (var zip = new ZipFile())
{
// Add the password protection, if specified
/*if (!string.IsNullOrEmpty(txtZIPPassword.Text))
{
zip.Password = txtZIPPassword.Text;
// 'This encryption is weak! Please see http://cheeso.members.winisp.net/DotNetZipHelp/html/24077057-63cb-ac7e-6be5-697fe9ce37d6.htm for more details
zip.Encryption = EncryptionAlgorithm.WinZipAes128;
}*/
// Construct the contents of the README.txt file that will be included in this ZIP
var readMeMessage = string.Format("Your ZIP file {0} contains the following files:{1}{1}", downloadFileName, Environment.NewLine);
// Add the checked files to the ZIP
foreach (ListItem li in cblFiles.Items)
if (li.Selected)
{
// Record the file that was included in readMeMessage
readMeMessage += string.Concat("\t* ", li.Text, Environment.NewLine);
// Now add the file to the ZIP (use a value of "" as the second parameter to put the files in the "root" folder)
zip.AddFile(li.Value, "Your Files");
}
// Add the README.txt file to the ZIP
//zip.AddEntry("README.txt", readMeMessage, Encoding.ASCII);
// Send the contents of the ZIP back to the output stream
zip.Save(Response.OutputStream);</pre></code>
I'm not sure how to get the downloads to point to my application directory,I tried everything I can think off.