public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
public Form2(string str,Delegate de) : this()//调用当前空构造函数
{
label1.Text = str; //赋值
this.de = de;//赋值
}
private void Form2_Load(object sender, EventArgs e)
{
}
private Delegate de;//定义委托类型字段
private void button1_Click(object sender, EventArgs e)
{
string strmsg = textBox1.Text;
if (de != null)
{
de(strmsg); //委托类型
}
this.Close();
}
}
public Main1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string content = textBox1.Text;
Form2 frm2 = new Form2(content,MsgStr); //初始化构造函数并赋值,参数中有需要委托类型(注:委托类型)
frm2.Show();
}
private void MsgStr(string str)
{
textBox2.Text = str;
}
}