How to make a solution explorer in C#?

Question

.NET

Hello. How to make a solution explorer, like in Visual Studio? What classes to use besides TreeView? What to read, where to dig?

Answer 1

What classes are necessary - depends on the task. To list directories and files, no additional classes are needed. The code could be something like this:

treeView1.Items.Clear();
GetFiles("C:/Windows/Microsoft.NET", null);

private void GetFiles(string path, TreeViewItem parent)
{
  var node = new TreeViewItem() { Header = System.IO.Path.GetFileName(path) };
      
  if (parent == null)
  {
    treeView1.Items.Add(node);
  }
  else
  {
    parent.Items.Add(node);
  }

  var attr = System.IO.File.GetAttributes(path);

  if (attr.HasFlag(System.IO.FileAttributes.Directory))
  {
    var directories = System.IO.Directory.GetDirectories(path);

    foreach (var dir in directories)
    {
      GetFiles(dir, node);
    }

    var files = System.IO.Directory.GetFiles(path);

    foreach (var file in files)
    {
      node.Items.Add(System.IO.Path.GetFileName(file));
    }
  }
}