事件委托例子:
using System; using System.Drawing; using System.Windows.Forms; namespace 跨窗体调用控件 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Form2 f = new Form2(); f.ChangeColor += new ChangeFormColor(f_ChangeColor); f.Show(); } void f_ChangeColor(bool topmost) { this.BackColor = Color.LightBlue; this.Text = "改变成功"; } } }
using System; using System.Windows.Forms; namespace 跨窗体调用控件 { public delegate void ChangeFormColor(bool topmost); public partial class Form2 : Form { public Form2() { InitializeComponent(); } public event ChangeFormColor ChangeColor; private void button1_Click(object sender, EventArgs e) { ChangeColor(true);//执行委托实例 } } }