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Çıktı

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 
using System.IO; 
using System.Diagnostics; 
namespace DosyaKarsilastir 
{ 
public partial class Form1 : Form 
{ 
OpenFileDialog openFile = new OpenFileDialog(); 
string line = ""; 
public Form1() 
{ 
InitializeComponent(); 
 } 
List<string> liste_A = new List<string>(); 
List<string> liste_B = new List<string>(); 
private void Form1_Load(object sender, EventArgs e) 
{ 
openFile.Filter = "Text Files (.txt)| *.txt"; 
button3.Enabled = false; 
button4.Enabled = false; 
button5.Enabled = false; 
button6.Enabled = false; 
button7.Enabled = false; 
} 
private void button1_Click(object sender, EventArgs e) 
{ 
try 
{ 
liste_A.Clear(); 
listBox1.Items.Clear(); 
if (openFile.ShowDialog() == DialogResult.OK) 
{ 
StreamReader sr = new StreamReader(openFile.FileName); 
lbl_dosyaAdi1.Text = openFile.FileName; 
while (line != null) 
{ 
line = sr.ReadLine(); 
if (line != null) 
{ 
listBox1.Items.Add(line.Trim()); 
liste_A.Add(line.Trim()); 
} 
} 
 
line = ""; 
sr.Dispose(); 
sr.Close(); 
} 
label2.Text = listBox1.Items.Count.ToString(); 
button3.Enabled = true; 
button4.Enabled = true; 
} 
catch 
{ 
MessageBox.Show("Listelenmedi.", "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error); 
} 
} 
private void button3_Click(object sender, EventArgs e) 
{ 
listBox2.Items.Clear(); 
if (openFile.ShowDialog() == DialogResult.OK) 
{ 
StreamReader sr = new StreamReader(openFile.FileName); 
label3.Text = openFile.FileName; 
while (line != null) 
{ 
line = sr.ReadLine(); 
if (line != null) 
{ 
listBox2.Items.Add(line.Trim()); 
liste_A.Add(line.Trim()); 
} 
} 
line = ""; 
sr.Dispose(); 
sr.Close(); 
} 
label6.Text = listBox2.Items.Count.ToString(); 
button5.Enabled = true; 
} 
private void button2_Click(object sender, EventArgs e) 
{ 
lbl_dosyaAdi1.Text = ""; 
label2.Text = ""; 
listBox1.Items.Clear(); 
} 
private void button4_Click(object sender, EventArgs e) 
{ 
label3.Text = ""; 
label6.Text = ""; 
listBox2.Items.Clear(); 
} 
private void button5_Click(object sender, EventArgs e) 
{ 
listBox3.Items.Clear(); 
listBox4.DataSource = null; 
liste_B.Clear(); 
 ////Aynı Olanlar 
for (int i = 0; i < listBox1.Items.Count; i++) 
{ 
for (int j = 0; j < listBox2.Items.Count; j++) 
{ 
if (listBox1.Items[i].ToString() == listBox2.Items[j].ToString()) 
{ 
listBox3.Items.Add(listBox1.Items[i].ToString()); 
// listBox3.Items.Add(listBox1.Items[i].ToString() + " " + i); 
//listBox2.Items.Remove(j); 
liste_B.Add(listBox1.Items[i].ToString()); 
} 
} 
} 
label9.Text = listBox3.Items.Count.ToString();//Aynı Olanlar 
listBox4.DataSource = liste_A.Except(liste_B).ToList();//A da olup B de olmayan 
label11.Text = listBox4.Items.Count.ToString();//Aynı Olanlar 
button2.Enabled = false; 
button1.Enabled = false; 
button3.Enabled = false; 
button4.Enabled = false; 
button5.Enabled = false; 
button6.Enabled = true; 
button7.Enabled = true; 
} 
private void button7_Click(object sender, EventArgs e) 
{ 
listBox2.Items.Clear(); 
listBox1.Items.Clear(); 
listBox3.Items.Clear(); 
listBox4.DataSource=null; 
liste_B.Clear(); 
button1.Enabled = true; 
button2.Enabled = true; 
label9.Text = ""; 
label11.Text = ""; 
lbl_dosyaAdi1.Text = ""; 
label2.Text = ""; 
label3.Text = ""; 
label6.Text = ""; 
button6.Enabled = false; 
button7.Enabled = false; 
} 
private void button6_Click(object sender, EventArgs e) 
{ 
try 
{ 
if (openFile.ShowDialog() == DialogResult.OK) 
{ 
StreamReader sr = new StreamReader(openFile.FileName); 
sr.Dispose(); 
sr.Close(); 
string dosya_yolu = openFile.FileName; 
using (TextWriter TW = new StreamWriter(dosya_yolu)) 
{ 
foreach (string itemText in listBox3.Items){TW.WriteLine(itemText);} 
foreach (string itemText in listBox4.Items) 
{TW.WriteLine(itemText);} 
 } 
Process.Start(dosya_yolu); 
} 
} 
catch (Exception ex) 
{MessageBox.Show(ex.ToString(), "Hata Bilgisi");} 
} 
} 
}