private void AddNote()
{
if (_treeHelper.IsSystem(treeViewLibrary.SelectedNode))
{
return;
}
var _newNode = _treeHelper.CreateNewNodeWindowed(treeViewLibrary.SelectedNode);
if (_newNode == null)
{
return;
}
treeViewLibrary.SelectedNode = _newNode;
_textboxHelper.Focus();
}