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.

Solution

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);
        }

Comments

[Andrey]

look at this stackoverflow.com/questions/8807209/…

[Nej Marinković]

Thanks, but what I am actually trying to do is to delete ALL files in certain folder, regardless on their extension.

[Andrey]

use ''.'' as file name

[T.S.]

Why are you not using .net framework? System.IO.DirectoryInfo

[Nej Marinković]

What does "." stands for? How do i define a folder in which i want to delete these files.

[Nej Marinković]

@T.S. what is a framework? I think i am using 4.6 framework

[Andrey]

should be "*.*", I can't write it.

[Nej Marinković]

@Andrey so basically asterisk is a folder, asterics is a file located in this folder?

[Andrey]

asterics is mask, folder is dot.

[Andrey]

"*.*" means all files. I find a way to write it as it should be.

[T.S.]

"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

[Thomas Ayoub]

Possible duplicate of How to delete all files and folders in a directory?