C#Winform窗體利用單例子窗體傳值父窗體

簡述：最近在作C#和HALCON編程，要用到單例的參數由子窗體改變父窗體的值。此例爲簡化版

       1，點擊系統設置

                 

      2，彈出子窗體，在其輸入修改參數後點修改按鈕

               

      3，點擊肯定按鈕後，關閉子窗體後，主窗體textbox值改變

              

    4,單例程序以下：

 public class Student
    {
        //建立單例類，內部靜態類方法
        private Student() { }//私有構造函數
        class Nested
        {
            internal static readonly Student instance = new Student();
        }
        public static Student Instance
        {
            get { return Nested.instance; }
        }

        //建立字段和其屬性
        private string name;
        public string  Name
        {
            get { return name; }
            set { name = value; }
        }
        private int chinses;

        public int Chinses
        {
            get { return chinses; }
            set { chinses = value; }
        }
        private int math;

        public int Math
        {
            get { return math; }
            set { math = value; }
        }
    }

   5,子窗體程序

        public Setting()
        {
            InitializeComponent();
        }
        Student stu= Student.Instance; //建立單例類的對

        private void Setting_Load(object sender, EventArgs e)
        {
           
        }

        private void BtnChange_Click(object sender, EventArgs e)
        {
            stu.Name = this.textBoxName.Text;//把子窗體textbox顯示值賦給字段的屬性
            stu.Chinses = Convert.ToInt32(this.textBoxChinese.Text);
            stu.Math = Convert.ToInt32(this.textBoxMath.Text);
        }

   6,父窗體程序

Student stu = Student.Instance;//建立單例類
        private void MainForm_Load(object sender, EventArgs e)
        {
            this.tBName.Text = "Weber";//主窗體加載顯示內容
            this.tBChinese.Text = Convert.ToString(89);
            this.tBMath.Text = Convert.ToString(90);
        }

        private void ToolStripButton1_Click(object sender, EventArgs e)
        {
            Setting mySetting = new Setting();
            mySetting.ShowDialog();//子窗體彈出

            this.tBName.Text = stu.Name;//字段屬性的值賦給textbox值
            this.tBMath.Text = Convert.ToString(stu.Math);
            this.tBChinese.Text = Convert.ToString(stu.Chinses);

        }

7,總結

  新手一枚，若有錯誤請指正！