private void DeleteTreeNode(string soundName)
        {
            TreeNode treeNodeToDelete = GetTreeNodeByText(soundName);

            SoundsTreeNodes.Remove(treeNodeToDelete);
        }
        private void RemoveSoundFromTree(string soundName)
        {
            TreeNode node = SoundsTreeNodes.Find(soundName, true)[0];

            SoundsTreeNodes.Remove(node);
        }