C # transfer data between forms

C # transfer data between forms

C # transfer data between two forms

1. Pass public variable values

  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. Address-Based Transmission

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; // The form2 Pointer Points to 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; // The form2 parent form pointer is assigned to form1 Close ();}}