using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 事件传值复习
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public event EventHandler evt;
Form2 form2 =
new Form2();
MyEventArgs mea =
new MyEventArgs();
private void btnFirst_Click(
object sender, EventArgs e)
{
this.evt +=
new EventHandler(form2.SetText);
form2.Show();
}
private void btnValue_Click(
object sender, EventArgs e)
{
mea.Text = textBox1.Text;
this.evt(
this,mea);
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 事件传值复习
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
public void SetText(
object sender, EventArgs e)
{
MyEventArgs mea = e
as MyEventArgs;
txtbox2.Text = mea.Text;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace 事件传值复习
{
public class MyEventArgs:EventArgs
{
private string text;
public string Text
{
get
{
return text;
}
set
{
text =
value;
}
}
}
}
