C# 表單間傳遞資料

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C#兩個表單之間傳遞資料

1 公用變數值傳遞

  public partial class Form1 : Form  //parent form    {        public string name="";        public Form1()        {            InitializeComponent();        }        private void newBtn_Click(object sender, EventArgs e)        {            Form2 form2 =new Form2();            form2.ShowDialog();            if (form2.DialogResult == DialogResult.OK)            {                textBox1.Text = form2.name;                form2.Close();            }        }    }

 public partial class Form2 : Form // son form    {        public string name       {            set { textBox1.Text = value; }            get { return textBox1.Text; }        }        public Form2()        {            InitializeComponent();        }        private void OK_Click(object sender, EventArgs e)        {            if (textBox1.Text == "")            {                MessageBox.Show("input!");                return;            }            DialogResult = DialogResult.OK;            Close();        }    }

2 使用地址方式傳遞

 public partial class Form1 : Form  //parent form    {        public string name="";        public Form1()        {            InitializeComponent();        }        private void newBtn_Click(object sender, EventArgs e)        {            Form2 form2 =new Form2();            form2.Owner = this;//form2的指標指向form1            form2.ShowDialog();            textBox1.Text = form2.name;            form2.Close();         }    }

 public partial class Form2 : Form  //son form    {        public string name       {            set { textBox1.Text = value; }            get { return textBox1.Text; }        }        public Form2()        {            InitializeComponent();        }        private void OK_Click(object sender, EventArgs e)        {            if (textBox1.Text == "")            {                MessageBox.Show("input!");                return;            }            Form1 form1 = (Form1)this.Owner;//form2的父表單指標賦給form1            Close();        }    }