Delete files in temp folder in C#

Question

I am working in Visual Studio 2015 and I am using C#. So I created Windows Form and I added a button named "button1". What I am trying to do is: when user clicks a button, the content of folder, named ( let´s say ) temp, located in C:/temp, is deleted, but the temp folder still remains.

I have tried to use this:

 private void button1_Click(object sender, EventArgs e)
    {
        string strCmdText;
        strCmdText = "del /q/f/s %TEMP%\* ";
        System.Diagnostics.Process.Start("CMD.exe", strCmdText);
    }

But I was told that this method is useful so I didn't use it anymore. And it also kept throwing an exception: "Unrecognized escape sequence". I was also told I should use System.IO namespace, I also tried to look for tutorials but I didn't find them useful.

look at this http://stackoverflow.com/questions/8807209/deleting-multiple-files-with-wildcard — Andrey, Aug 29 '15 at 19:19
Thanks, but what I am actually trying to do is to delete ALL files in certain folder, regardless on their extension. — Nej Marinković, Aug 29 '15 at 19:25
Why are you not using .net framework? `System.IO.DirectoryInfo` — T.S., Aug 29 '15 at 19:27
What does "." stands for? How do i define a folder in which i want to delete these files. — Nej Marinković, Aug 29 '15 at 19:28
@Andrey so basically asterisk is a folder, asterics is a file located in this folder? — Nej Marinković, Aug 29 '15 at 19:30
"\*.\*" means all files. I find a way to write it as it should be. — Andrey, Aug 29 '15 at 19:32
"what is a framework?" - why are you even asking questions here... not sure... I just gave you answer how to delete directory - go grab it — T.S., Aug 29 '15 at 19:34
Possible duplicate of [How to delete all files and folders in a directory?](http://stackoverflow.com/questions/1288718/how-to-delete-all-files-and-folders-in-a-directory) — Thomas Ayoub, Feb 10 '16 at 16:08

score 4 · Accepted Answer · answered Aug 29 '15 at 21:09

If youre looking to delete all files within the temp folder i would do something like this

        var dir = new DirectoryInfo("c:\\temp");
        foreach (var file in Directory.GetFiles(dir.ToString()))
        {
            File.Delete(file);
        }

or, if you are looking to delete certain files or types use something like this

        foreach (var file in Directory.GetFiles("c:\\temp", "*.xml", SearchOption.AllDirectories))
        {
            File.Delete(file);
        }

score 1 · Answer 2 · answered Mar 15 '22 at 17:31

string userName = Environment.UserName;

        var dir = new DirectoryInfo("C:\\Users\\"+userName+ "\\AppData\\Local\\Temp");
        var d = new DirectoryInfo("C:\\Windows\\Temp");
       foreach (var file in Directory.GetFiles(d.ToString()))
        {
            File.Delete(file);
        }

score 0 · Answer 3 · answered Dec 07 '22 at 08:44

0

Btw it says Unrecognized Escape Sequence cause you had a slash the wrong way around. This is how it should be:

string strCmdText;
            strCmdText = "del /q/f/s %TEMP%/* ";
            System.Diagnostics.Process.Start("CMD.exe", strCmdText);

answered Dec 07 '22 at 08:44

Twangy Money

1

Delete files in temp folder in C#

3 Answers3