I am following this tutorial from MSDN.
There's something I saw in the code that I can't understand
private void PopulateTreeView()
{
TreeNode rootNode;
DirectoryInfo info = new DirectoryInfo(@"../.."); // <- What does @"../.." mean?
if (info.Exists)
{
rootNode = new TreeNode(info.Name);
rootNode.Tag = info;
GetDirectories(info.GetDirectories(), rootNode);
treeView1.Nodes.Add(rootNode);
}
}
4 Answers
@ is for verbatim string, so that the string is treated as is. Especially useful for paths that have a \ which might be treated as escape characters ( like \n)
../.. is relative path, in this case, two levels up. .. represents parent of current directory and so on.
.. is the container directory. So ../.. means "up" twice.
For example if your current directory is C:/projects/a/b/c then ../.. will be C:/projects/a
new DirectoryInfo(@"../..") means "a directory two levels above the current one".
The @ denotes a verbatim string literal.
example E:\Software\file\folder
/ is the root of the current drive. ./ is the current director. ../ is the parent of the current directory. that is ->E:\ ../.. is relative path, in this case, two levels up. to get folder just write "../../folder"
