如何到达 appdata 中的文件夹并将其删除？

Question

I'm trying to create a launcher for a FiveM server, currently I'm at the "delete cache" button, the principle is that when you press it, it deletes the folders: "browser,db,dunno,priv,servers,subprocess" they are located at: \\AppData\\Local\\FiveM\\FiveM.app\\cache' but I don't know how to reach them deletes, here's the code I tried and didn't work, they do not delete themselves (I'm new in C#)

Here's the code:

        private void button3_Click(object sender, EventArgs e)
        {
            string folder = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            string path = System.IO.Path.Combine(folder, "fivem");
            string fap = System.IO.Path.Combine(path, "FiveM Application Data");
            string cache = System.IO.Path.Combine(fap, "cache");
            string browser = System.IO.Path.Combine(cache, "browser");
            string db = System.IO.Path.Combine(browser, "db");
            string dunno = System.IO.Path.Combine(db, "dunno");
            string priv = System.IO.Path.Combine(dunno, "priv");
            string servers = System.IO.Path.Combine(priv, "servers");
            string Cache = System.IO.Path.Combine(servers, "subprocess");



            if (Directory.Exists(Cache))
            {
                Directory.Delete(Cache);
            }
        }

Answer 1

I'm not sure that Path.Combine works in that way. I would modify your method like this (easier to read and maintain):

    private void button3_Click(object sender, EventArgs e)
    {
        string baseFolder = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),"fivem", "FiveM.app");

        var folders = new string[]
        {
            "FiveM Application Data",
            "cache",
            "browser",
            "db",
            "dunno",
            "priv",
            "servers",
            "subprocess"
        };

        foreach (var folder in folders)
        {
            var toDelete = System.IO.Path.Combine(baseFolder, folder);

            if (Directory.Exists(toDelete))
            {
                Directory.Delete(toDelete, true);
            }
        }
    }

if you want to delete ALL the folders inside your base folder, without choosing them by name, you can try this:

    private void button3_Click(object sender, EventArgs e)
    {
        string baseFolder = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),"fivem", "FiveM.app");

        foreach (var subDir in new DirectoryInfo(baseFolder).GetDirectories()) {
            subDir.Delete(true);
        }
    }

Don't forget to use the Delete overload with true parameter, so you can launch a recursive delete to remove all files and subfolders

Answer 2

Try:

private void button3_Click(object sender, EventArgs e)
        {
            string folder = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            string path = System.IO.Path.Combine(folder, "fivem");
            string fap = System.IO.Path.Combine(path, "FiveM Application Data");
            string cache = System.IO.Path.Combine(path, "cache");
            string browser = System.IO.Path.Combine(path, "browser");
            string db = System.IO.Path.Combine(path, "db");
            string dunno = System.IO.Path.Combine(path, "dunno");
            string priv = System.IO.Path.Combine(path, "priv");
            string servers = System.IO.Path.Combine(path, "servers");
            string subprocess = System.IO.Path.Combine(path, "subprocess");

        if (Directory.Exists(fap))
        {
            Directory.Delete(fap, true);
        }
        if (Directory.Exists(cache))
        {
            Directory.Delete(cache, true);
        }
        //repeat for all the variables

        if (Directory.Exists(subprocess))
        {
            Directory.Delete(subprocess, true);
        }
    }