如何遍历toolstrip上面的按钮

Question

有一个！toolstrip1 上面 有toolstripbutton  还有toolstriplabel 还有
toolStripSeparator我只想遍历到button  怎么弄啊？
string[] a = GlobalClass.userinfo.Qx;
            foreach (ToolStripButton mi in toolStrip1.Items)
            {
                mi.Enabled = false;
                for (int i = 0; i < a.Length; i++)
                {
                    if (a[i] == mi.Tag.ToString())
                    {
                        mi.Enabled = true;
                        i = a.Length;
                    }
                }            }这么写  报错 无法将toolstriplabel 强制转换为toolstripbutton  
求解释帝！！

Answer 1

要加个类型判断
if (mi.GetType() == typeof(ToolStripButton))foreach (ToolStripItem  mi in toolStrip1.Items)
            {
                
                if (mi.GetType() == typeof(ToolStripButton))
                {
                    mi.Enabled = false;
                    for (int i = 0; i < a.Length; i++)
                    {
                        if (a[i] == mi.Tag.ToString())
                        {
                            mi.Enabled = true;
                            i = a.Length;
                        }
                    }                }
            }

Answer 2

typeof 
或is 判断类型

Answer 3

            foreach (ToolStripItem mi in toolStrip1.Items)
            {
                mi.Enabled = false;
                if (mi is ToolStripButton)
                {
                    Console.WriteLine("Button");
                }
                            }

Answer 4

会啦！ 嘿嘿  
我强制转换了下！！！foreach (object mi in toolStrip1.Items)
            {
                if (mi is ToolStripButton)
                {
                    ((ToolStripButton)mi).Enabled = false;
                    for (int i = 0; i < a.Length; i++)
                    {
                        if (a[i] == ((ToolStripButton)mi).Tag.ToString())
                        {
                            ((ToolStripButton)mi).Enabled = true;
                            i = a.Length;
                        }
                    }
                }
            }

Answer 5

 ToolStripMenuItem ms = new ToolStripMenuItem();
 ms = (System.Windows.Forms.ToolStripMenuItem)toolstrip1.Items[];
强制转换