[window form]在子視窗中關閉子視窗並更新母視窗

2010-09-15

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Window Form

很多範例都實作在web form上，目前遇到要在window form上使用

記錄一下過程

1. 拉兩個視窗，這裡Form1為母視窗，Form2為子視窗。

2. 傳送參數定義如下

using System.Collections.Generic;
using System.Text;

namespace FormSubmit.Model
{
    public class FormParameter
    {
        //測試參數
        private string _FuncNum;
        public string FuncNum
        {
            set { _FuncNum = value; }
            get { return _FuncNum; }
        }
    }
}

3. 將子視窗的FormClosed事件改寫委派

        {           
             Form2 sub = (Form2)sender;
             parm1 = sub.parm2;
             this.textBox1.Text = parm1.FuncNum;           
        }

母視窗程式碼

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace FormSubmit
{
    public partial class Form1 : Form
    {
        public FormSubmit.Model.FormParameter parm1 = new Model.FormParameter();
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 a = new Form2();
            a.Show();
            //委託
            a.FormClosed += new FormClosedEventHandler(Form2_FormClosed);
        }
        void Form2_FormClosed(object sender, FormClosedEventArgs e)
        {           
             Form2 sub = (Form2)sender;
             parm1 = sub.parm2;
             this.textBox1.Text = parm1.FuncNum;           
        }
    }
}

子視窗程式碼

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace FormSubmit
{
    public partial class Form2 : Form
    {
        public FormSubmit.Model.FormParameter parm2 = new Model.FormParameter();
        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
             //傳值
             parm2.FuncNum = textBox1.Text;
             //觸發Form2_FormClosed
             this.Close();
        }        
    }
}

輸出結果

子視窗

母視窗

參考資料

[C#.NET] 如何使用 WinForm 關閉視窗事件

幾種WinForm的Form與Form之間的傳值方法

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