Question

I am trying to copy a file using this –

 private void button1_Click(object sender, EventArgs e)
    {
        Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
        if (File.Exists(@"C:\Users\%UserProfile%\AppData\Roaming\.minecraft\bin\minecraft.jar"))
            try
            {                  
                File.Copy(@"C:\Users\%UserProfile%\AppData\Roaming\.minecraft\bin\minecraft.jar", @"C:\Users\%UserProfile%\Documents\MinecraftBackup\minecraft.jar", true);
            }

and it won’t work unless I change %UserProfile% to my actual username, how do i fix this?

Answer 1

Instead of:

C:\Users\%UserProfile%\AppData\Roaming\.minecraft\bin\minecraft.jar

try

Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), 
             @".minecraft\bin\minecraft.jar")

In fact, any time you see “C:\Users\%UserProfile%\AppData\Roaming\“, you should use “Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)“.