小编M.G*_*.G.的帖子

我有代码.构造函数应该进入GetItems函数但是当我放置断点时,它根本就不会停止.

问题是什么？

namespace Storehouse {
    public partial class MainForm : Form {
        public MainForm() {
            InitializeComponent();
            var a = GetItems(fILEToolStripMenuItem);

        }

        public IEnumerable<ToolStripMenuItem> GetItems(ToolStripMenuItem item) {
            foreach (ToolStripMenuItem dropDownItem in item.DropDownItems) {
                if (dropDownItem.HasDropDownItems) {
                    foreach (ToolStripMenuItem subItem in GetItems(dropDownItem)) {
                        yield return subItem;
                    }
                    yield return dropDownItem;
                }

            }

        }
}