Form1.cs
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            Form2 frm = new Form2();
            if (frm.ShowDialog() == DialogResult.OK)
            {
                label1.Text = frm.Metin;
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            Form3 frm = new Form3(textBox1.Text);
            frm.Show();
        }
    }
}
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
Form2.cs
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
namespace WindowsFormsApplication1
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
        private string metin;
        public string Metin
        {
            get { return metin; }
           
        }
        private void button1_Click(object sender, EventArgs e)
        {
            metin = textBox1.Text;
        }
    }
}
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
Form3.cs
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM
namespace WindowsFormsApplication1
{
    public partial class Form3 : Form
    {
        public Form3(string deger)
        {
            InitializeComponent();
            label1.Text = deger;
        }
    }
}
// Basit Form Iliskileri | www.aliakyildirim.com | Ali AKYILDIRIM