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Windows Forms app on shared location, save file locally

My problem is that I have a windows forms application which is located on a shared location, which is doing some logic and at the end i need to export the data into an excel file.
But the excel file should be exported to the machine that the users is logged in, not on the shared server where the application is hosted ...
Any Ideas?
Example of the situation:
The location of the application is at 192.168.1.150\AppName\App.exe
I have access to this shared location and I'm starting the exe file from there.
I need the application to export an excel file to my computer on my desktop .... how?

If you think the folder "My Documents" is a good place to save the Excel file, then this code will help to get you the path:
var folderPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
or if you want to put the file on the Desktop:
var folderPath = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory)
The code works regardless of where the folder "My Documents" (or "Desktop") is located for the user (C:, D:, Network share, etc), or which language version his windows installation is using.
To combine with a time based file name:
var fileName = $"your_file_{DateTime.Now:yyMMddHHmmss}.xlsx";
var fullPath = Path.Combine(folderPath, fileName);
I often use time based file names to not overwrite if there is a previous file. (It would of course overwrite if created the same second)
If you want a file name that is guaranteed to be unique you can use a Guid instead of DateTime:
var fileName = $"your_file_{Guid.NewGuid():N}.xlsx";
If the file is just used "within the program" you can also store it in the temporary files folder. To get the path to the temporary files folder you write var folderPath = Path.GetTempPath()
Hope this helps!

Why don't you just use Save File Dialog and save the excel file where you want? Something like this:
private void SaveFile_FileOk(object sender, CancelEventArgs e)
{
string name = SaveFile.FileName;
string[] savearray = new string[] { "some test:" }
File.WriteAllLines(name, savearray);
//this is just an example, your excel file goes here.
}
And on your button to save:
SaveFile.ShowDialog();
You can choose the path for where you want to save...

C# Filestream denied access

I'm trying to use C# to create a file, and read files back to fill out a rich text block. right now my problem is in creating/writing to the file.
FileStream fs = File.Create(#".\\tmp\" + fileName);
This is where I'm trying to write to. .\tmp\ exists, but when trying to write it it errors, saying
.\tmp\filename access is denied

The probably is that the user that is running the application probably doesn't have access to write to that directory. The easiest way to test that would be to run your application as administrator you should have access to write to that directory then.
You might also want to consider writing to the current directory no matter what user who is running your application should at the very least have access to that directory
System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location)

Probably you don't have access to the relative path.
To get your assembly directory:
private static string AssemblyDirectory
{
get
{
string codeBase = Assembly.GetExecutingAssembly().CodeBase;
UriBuilder uri = new UriBuilder(codeBase);
string path = Uri.UnescapeDataString(uri.Path);
return Path.GetDirectoryName(path);
}
}
Then
FileStream fs = File.Create(Path.Combine(AssemblyDirectory, fileName));

You are using a relative path which leads to a location which you don't have access to.
A possible solution could be to:
Create a folder C:/data and make sure you have read and write rights to that folder
change the code to
string fileName = "file.txt";
FileStream fs = File.Create(#"C:/data/" + fileName);
This should create a file under C:/data with the filename "file.txt", assuming you have the correct read and write rights.
If you want a relative path to the current user's root directory, use:
string currentUserDirectory =
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);

This happened to me . I had had an anti-virus blocking access to any file when the writing or reading process happening from a C# program. I have just deactivated the anti-virus and the code worked like magic !

how to Save File using C# Windows Application

I'm using C# windows application .
I want to save files in my local system.
I used Open File dialog to attach the files.
Here the text inside the file is copying,I want the file itself to get copied with a new name.But what I am really looking for is , it should just save the file automatically and not show the SaveDialog Box?
How it can be done in windows application.Can anybody help me please?
The code is shown below:
private string GetFileName()
{
OpenFileDialog op1 = new OpenFileDialog();
DialogResult result = op1.ShowDialog();
if (result == DialogResult.OK) // Test result.
{
txtEn.Text = op1.FileName;
FileName = op1.FileName;
//MessageBox.Show(FileName);
File.Copy(op1.FileName, #"D:\Backup\");
}
return FileName;
}

SQL Server 2012 seems unrelated to your question. Provided that you have proper access rights to the target directory, then in order to automate the procedure (as per your question) you don't need to use the OpenFileDialog; just a single line should suffice the goal:
//Overwriting a file of the same name is not allowed
File.Copy(FileName, #"D:\Backup\" + FileName)
or
//Overwriting a file of the same name is allowed
File.Copy(FileName, #"D:\Backup\" + FileName, true)
You can also apply some additional logic pertinent to backup file naming (upon necessity).
Hope this may help. Best regards,

Are you trying to copy a file from some x location on your file system to y location (in your case D:\Backup folder) in the file system? If that is the requirement here, I see that you are using the FileName property of OpenFileDialog which gets the File path. This you are appending to D:\Backup. You should instead use the Path.GetFileName property to first extract the file name with extension and then append it to the new folder path
File.Copy(fileName, #"D:\Backup\" + Path.GetFileName(fileName));

C# Saving files on different PC's

The program I am writing is a stock inventory system.
So the PC I wrote the program on can locate the files and folders to update on the PC as necessary as the path is valid.
string path = "C:\\Users\\ThisPC\\Documents\\Stock Documents\\Reciepts";
if (!Directory.Exists("C:\\Users\\ThisPC\\Documents\\Stock Documents\\Reciepts"))
{
Directory.CreateDirectory(path);
}
var fileName = #"c:\Users\ThisPC\Documents\Stock Documents\Tyre_File.xml";
This line is also used when I am updating quantities when an order is taken.
So obviously when I run this program in visual studio on another PC this path isn't recognized.
Is there a way that I can add a pointer to create and store my folder and documents in the My Documents on any pc the program loads in?
UPDATE-------------------------------------------------------
string path = "C:\\Users\\ThisPC\\Documents\\Stock Documents\\Customer Reciepts";
if (!Directory.Exists("C:\\Users\\ThisPC\\Documents\\Stock Documents\\Customer Reciepts"))
{
Directory.CreateDirectory(path);
}
This is the only one it wont work for, it creates a folder within a folder when the form is loaded, but your method doesnt work for that?

I believe that
Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
is what you are looking for

You want the environment variable for MyDocuments, which will be unique for each user/computer.
String path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

Write a text file to a sub-folder

I am trying to write out a text file to: C:\Test folder\output\, but without putting C:\ in.
i.e.
This is what I have at the moment, which currently works, but has the C:\ in the beginning.
StreamWriter sw = new StreamWriter(#"C:\Test folder\output\test.txt");
I really want to write the file to the output folder, but with out having to have C:\ in the front.
I have tried the following, but my program just hangs (doesn't write the file out):
(#"\\Test folder\output\test.txt");
(#".\Test folder\output\test.txt");
("//Test folder//output//test.txt");
("./Test folder//output//test.txt");
Is there anyway I could do this?
Thanks.

Thanks for helping guys.
A colleague of mine chipped in and helped as well, but #Kami helped a lot too.
It is now working when I have:
string path = string.Concat(Environment.CurrentDirectory, #"\Output\test.txt");
As he said: "The CurrentDirectory is where the program is run from.

I understand that you would want to write data to a specified folder. The first method is to specify the folder in code or through configuration.
If you need to write to specific drive or current drive you can do the following
string driveLetter = Path.GetPathRoot(Environment.CurrentDirectory);
string path = diveLetter + #"Test folder\output\test.txt";
StreamWriter sw = new StreamWriter(path);
If the directory needs to be relative to the current application directory, then user AppDomain.CurrentDomain.BaseDirectory to get the current directory and use ../ combination to navigate to the required folder.

You can use System.IO.Path.GetDirectoryName to get the directory of your running application and then you can add to this the rest of the path..
I don't get clearly what you want from this question , hope this get it..

A common technique is to make the directory relative to your exe's runtime directory, e.g., a sub-directory, like this:
string exeRuntimeDirectory =
System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().Location);
string subDirectory =
System.IO.Path.Combine(exeRuntimeDirectory, "Output");
if (!System.IO.Directory.Exists(subDirectory))
{
// Output directory does not exist, so create it.
System.IO.Directory.CreateDirectory(subDirectory);
}
This means wherever the exe is installed to, it will create an "Output" sub-directory, which it can then write files to.
It also has the advantage of keeping the exe and its output files together in one location, and not scattered all over the place.