遍历菜单报错

Question

无法将类型为“System.Windows.Forms.ToolStripSeparator”的对象强制转换为类型“System.Windows.Forms.ToolStripMenuItem”。  遍历二级菜单 中间有分割线就报这个错误 如何解决？

Answer 1

你应该判断下if(xx is ToolStripMenuItem)
{
 ToolStripMenuItem xx = x;
}

Answer 2

要进行判断 if (item is ToolStripMenuItem)

Answer 3

 foreach (ToolStripMenuItem item in menuStrip1.Items)
            {
                MessageBox.Show(item.Text);
                if (item is ToolStripMenuItem)
                {
                    EnumerMenu(item);
                }
            }
 private void EnumerMenu(ToolStripMenuItem item)
        {
            foreach (ToolStripMenuItem subItem in item.DropDownItems)
            {
                MessageBox.Show(subItem.Text);
                if (item is ToolStripMenuItem)
                {
                    EnumerMenu(subItem);
                }
            }
        }判断了 还是报错

Answer 4

本帖最后由 net_lover 于 2012-09-18 16:24:52 编辑