private void BtnEditYamlNode_Click(object sender, EventArgs e)
        {
            MiniYamlNode       node            = keyValuePairs[yamlNodeList.SelectedNode];
            frmAddEditYamlNode editYamlNodeWin = new frmAddEditYamlNode(keyValuePairs[yamlNodeList.SelectedNode], 1);

            if (editYamlNodeWin.ShowDialog() == DialogResult.OK)
            {
                node = editYamlNodeWin.Node;
            }
        }
        private void BtnAddYamlNode_Click(object sender, EventArgs e)
        {
            MiniYamlNode       node           = keyValuePairs[yamlNodeList.SelectedNode];
            frmAddEditYamlNode addYamlNodeWin = new frmAddEditYamlNode(node, 0);

            if (addYamlNodeWin.ShowDialog() == DialogResult.OK)
            {
                addYamlNodeWin.Node.ParentNode = node;
                node.ChildNodes.Add(addYamlNodeWin.Node);
            }
        }