private void LoadMsgToTree(MsgReader.Outlook.Storage.Message message)
 {
     if (MessagesTreeView.InvokeRequired)
     {
         MessagesTreeView.Invoke(new LoadMsgToTreeCallback(LoadMsgToTree), message);
     }
     else
     {
         LoadMsgToTree(message, this.MessagesTreeView.Nodes.Add("root"));
     }
 }
 private void expandAllToolStripMenuItem_Click(object sender, EventArgs e)
 {
     MessagesTreeView.ExpandAll();
 }
 private void collapseAllToolStripMenuItem_Click(object sender, EventArgs e)
 {
     MessagesTreeView.CollapseAll();
 }
 private void DownButton_Enter(object sender, EventArgs e)
 {
     MessagesTreeView.Focus();
 }