学步园

现在有两个窗体，窗体1和窗体2，单击窗体2的button可以得到一个值，现在想做到单击button时将取到的值赋给窗体1的textbox中，同时关闭窗体2

定义事件 

窗体2 
public   delegate   void   SampleEventDelegate(string   s); 
                public   event   SampleEventDelegate   SampleEvent; 
                private   void   button1_Click(object   sender,   EventArgs   e) 
                { 
                        if   (SampleEvent   !=   null) 
                        { 
                                SampleEvent( "test "); 
                                this.Close(); 
                        } 
                } 

窗体1 
private   void   showtext(string   s) 
                { 
                        MessageBox.Show(s); 
                } 

                private   void   button1_Click(object   sender,   EventArgs   e) 
                { 
                        Form2   f   =   new   Form2(); 
                        f.SampleEvent+=   new   Form2.SampleEventDelegate(showtext); 
                        f.ShowDialog(); 
}