How to copy a file in using a string that has %UserProfile% in C#

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?

score 2 · Accepted Answer · answered May 07 '12 at 19:49

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)".

score 2 · Answer 2 · answered May 07 '12 at 20:02

2

var s = @"C:\Users\%UserProfile%\AppData\Roaming\";
var s2 = Environment.ExpandEnvironmentVariables(s);

s2 has expanded data

answered May 07 '12 at 20:02

galets

17,802
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score 0 · Answer 3 · answered May 07 '12 at 19:50

0

The %userprofile% variable includes the full path, all the way back to the root of the drive.

C:\Windows\System32>echo %userprofile%
C:\Users\[myusername]

answered May 07 '12 at 19:50

akatakritos

9,836
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This is going to be used on other peoples computers so I dont believe that will work – May 07 '12 at 19:56

How to copy a file in using a string that has %UserProfile% in C#

3 Answers3