winform中打开窗口选择，选择后关闭窗口并返回值，标准的代码写法是用什么的思路的？？

Question

public property...ordelegate...orevent...

Answer 1

==================通过属性 应该是 比较 标准的 ＝＝＝＝＝＝＝＝＝＝＝＝＝＝
namespace ReadFile
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {            Form3 fm = new Form3();
            fm._val = this.textBox1.Text;
            if (fm.ShowDialog() == DialogResult.OK)
            {
                this.textBox1.Text = fm._val;
            }
        }
    }
}namespace ReadFile
{
    public partial class Form3 : Form
    {
        // 定义一个属性
        public string _val;
        public string val
        {
            get
            {
                return _val;
            }
            set
            {
                _val = value;
            }
        }
        
        public Form3()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            _val = this.textBox1.Text;
            this.DialogResult = DialogResult.OK;
            this.Hide();
        }        private void Form3_Load(object sender, EventArgs e)
        {
            this.textBox1.Text = _val;
        }      
    }
}