GitUI.FormPull.BranchesDropDown C# (CSharp) Method

        private void BranchesDropDown(object sender, EventArgs e)
        {
            if ((PullFromUrl.Checked && string.IsNullOrEmpty(PullSource.Text)) &&
                (PullFromRemote.Checked && string.IsNullOrEmpty(Remotes.Text)))
            {
                Branches.DataSource = null;
                return;
            }

            Cursor.Current = Cursors.WaitCursor;
            LoadPuttyKey();

            if (_heads == null)
            {
                if (PullFromUrl.Checked)
                {
                    _heads = GitCommands.GitCommands.GetHeads(false, true);
                }
                else
                {
                    // The line below is the most reliable way to get a list containing
                    // all remote branches but it is also the slowest.
                    // Heads = GitCommands.GitCommands.GetRemoteHeads(Remotes.Text, false, true);

                    // The code below is a quick way to get a list containg all remote branches.
                    // It only returns the heads that are allready known to the repository. This
                    // doesn't return heads that are new on the server. This can be updated using
                    // update branch info in the manage remotes dialog.
                    _heads = new List<GitHead>();
                    foreach (var head in GitCommands.GitCommands.GetHeads(true, true))
                    {
                        if (!head.IsRemote ||
                            !head.Name.StartsWith(Remotes.Text, StringComparison.CurrentCultureIgnoreCase))
                            continue;

                        _heads.Insert(0, head);
                    }
                }
            }
            Branches.DisplayMember = "LocalName";

            //_heads.Insert(0, GitHead.AllHeads); --> disable this because it is only for expert users
            _heads.Insert(0, GitHead.NoHead);
            Branches.DataSource = _heads;

            Cursor.Current = Cursors.Default;
        }