c# winform中委托的使用问题？？？

C# code

namespace test_csharp{    public partial class Form1 : Form    {        public   delegate void openForm(object o,EventArgs e);        public event openForm eventOpenForm;        public Form2 newForm=new Form2();         public Form1()        {            InitializeComponent();                   }        private void button1_Click(object sender, EventArgs e)        {            //这样写不行            this.newForm.Shown;        }        private void Form1_Load(object sender, EventArgs e)        {             //这样写也不行            //button1_Click += eventOpenForm(this.newForm, this.newForm.Shown);        }    }       }

怎么写才能在form1中单机按钮，打开form2，错误提示是

错误1只有 assignment、call、increment、decrement 和 new 对象表达式可用作语句F:\vsprogram\test_csharp\test_csharp\Form1.cs2613test_csharp
错误2事件“System.Windows.Forms.Form.Shown”只能出现在 += 或 -= 的左边F:\vsprogram\test_csharp\test_csharp\Form1.cs2626test_csharp


[解决办法]

C# code

        private void button1_Click(object sender, EventArgs e)        {            this.newForm.Show();        }        private void Form1_Load(object sender, EventArgs e)        {            eventOpenForm += new openForm(button1_Click);            if (eventOpenForm!=null)            {                eventOpenForm(sender, e);            }        }