VixenApplication.ConfigElements.buttonDeleteElement_Click C# (CSharp) Метод

        private void buttonDeleteElement_Click(object sender, EventArgs e)
        {
            if (multiSelectTreeviewElementsGroups.SelectedNodes.Count > 0)
            {
                string message, title;
                if (multiSelectTreeviewElementsGroups.SelectedNodes.Count > 1) {
                    message = "Are you sure you want to delete the selected elements?";
                    title = "Delete Items?";
                } else {
                    message = "Are you sure you want to delete the selected element?";
                    title = "Delete Item?";
                }
                if (MessageBox.Show(message, title, MessageBoxButtons.OKCancel) == DialogResult.OK) {
                    foreach (TreeNode tn in multiSelectTreeviewElementsGroups.SelectedNodes) {
                        DeleteNode(tn);
                    }
                    _changesMade = true;
                }
            }

            PopulateNodeTree();
            PopulateFormWithNode(null, true);
        }