delete – oflazoglu.org

Nesne Tabanlı Programlama-2 (Bahar-2016) Hafta-7/1

Tarafından caglar Yayınlanan 22 Mart 2017 Ders Notları, JAVA, Nesne Tabanlı Programlama-2, Yazılım de yazılmıştır. Yorum Yok

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;

public class veritabani extends JFrame implements ActionListener {
	
	DefaultListModel<String>[] dlm;
	JList<String>[] jlist;
	
	JTextField jtf1,jtf2;
	
	public veritabani()
	{
		this.setTitle("Telefon Rehberi");
		this.setSize(200,400);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setLayout(new FlowLayout());
		
		JPanel jpn_main= new JPanel();
		jpn_main.setLayout(new GridLayout(1,2));
		jpn_main.setPreferredSize(new Dimension(190, 390));
	
		JLabel jlab1= new JLabel("İsim");
		JLabel jlab2= new JLabel("Telefon No");
		JPanel jpn1= new JPanel();		
		JPanel jpn2= new JPanel();
		
		jpn1.add(jlab1);
		jpn2.add(jlab2);
		
		dlm= new DefaultListModel[3];
		jlist = new JList[2];
		
		dlm[2] = new DefaultListModel<String>(); // id listesi
		
		for(int i=0;i<2;i++)
		{
			dlm[i] = new DefaultListModel<String>();
			jlist[i]= new JList<String>(dlm[i]);
			
			JScrollPane jscp = new JScrollPane(jlist[i]);
			jscp.setPreferredSize(new Dimension(90, 290));
			
			if(i%2==0)
				jpn1.add(jscp);
			else
				jpn2.add(jscp);
		}
		
		jtf1 = new JTextField();
		jtf2 = new JTextField();
		JButton jbtn1 = new JButton("Ekle");
		JButton jbtn2 = new JButton("Sil");		
		jtf1.setPreferredSize(new Dimension(90, 30));
		jtf2.setPreferredSize(new Dimension(90, 30));	
		jbtn1.setPreferredSize(new Dimension(90, 30));
		jbtn2.setPreferredSize(new Dimension(90, 30));
			
		jpn1.add(jtf1);
		jpn1.add(jbtn1);
		jpn2.add(jtf2);
		jpn2.add(jbtn2);
		
		jpn_main.add(jpn1);
		jpn_main.add(jpn2);
		
		jbtn1.setActionCommand("ekle");
		jbtn1.addActionListener(this);
		jbtn2.addActionListener(this);
		this.add(jpn_main);
	
		Connection conn = baglan();
		verigetir(conn);
		
		this.setVisible(true);
		
		
	}

	public void verigetir(Connection conn)
	{
		if(conn==null)
			return;
		
		try{
			dlm[0].clear();
			dlm[1].clear();
			dlm[2].clear(); // id ler silindi
			
			String sql = "select id,isim,telno from kullanicilar order by isim";
			Statement st = conn.createStatement();
			ResultSet rs = st.executeQuery(sql);
			
			while(rs.next())
			{
				dlm[0].addElement(rs.getString("isim"));
				dlm[1].addElement(rs.getString("telno"));
				dlm[2].addElement(rs.getString("id")); // id ler listeye yukleniyor
			}
			
						
		}
		catch(Exception ex)
		{
			JOptionPane.showMessageDialog(this, "Sorgu Hatasi!");
		}
		
	}
	
	@Override
	public void actionPerformed(ActionEvent arg0) {
		
		Connection conn = baglan();
		if(conn==null)
			return;
		try{		
			if(arg0.getActionCommand().equals("ekle"))
			{
				String sql="insert into kullanicilar (isim,telno) values(?,?)";
					
				if(jtf1.getText().length()>0 && jtf2.getText().length()>0)
				{
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, jtf1.getText());
					ps.setString(2, jtf2.getText());
					ps.executeUpdate();
					jtf1.setText("");
					jtf2.setText("");
				}
			}
			else
			{
				int secilen = jlist[0].getSelectedIndex();
				
				if(secilen>-1)
				{
					String id = dlm[2].get(secilen);
					String sql = "delete from kullanicilar where id=?;";
	
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, id);
					int say = ps.executeUpdate();
					//JOptionPane.showMessageDialog(this, "Silinen kayit:"+say);
				}
				
			}
		}catch(Exception ex)
		{
			JOptionPane.showMessageDialog(this, "Hata: "+ex.getMessage());
		}
		
		verigetir(conn);
		
	}
	
	public Connection baglan()
	{
		Connection conn = null;
		try{
			
			Class.forName("org.sqlite.JDBC");
			conn=DriverManager.getConnection("jdbc:sqlite:orgun1h7_1.db");
			
		}catch(Exception ex)
		{
			JOptionPane.showMessageDialog(this, "Baglanti Hatasi!");
		}
		return conn;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new veritabani();

	}

}

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import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.sql.*;

public class veritabani extends JFrame implements ActionListener {

DefaultListModel<String>[] dlm;

JList<String>[] jlist;

JTextField jtf1,jtf2;

public veritabani()

{

this.setTitle("Telefon Rehberi");

this.setSize(200,400);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setLayout(new FlowLayout());

JPanel jpn_main= new JPanel();

jpn_main.setLayout(new GridLayout(1,2));

jpn_main.setPreferredSize(new Dimension(190, 390));

JLabel jlab1= new JLabel("İsim");

JLabel jlab2= new JLabel("Telefon No");

JPanel jpn1= new JPanel();

JPanel jpn2= new JPanel();

jpn1.add(jlab1);

jpn2.add(jlab2);

dlm= new DefaultListModel[3];

jlist = new JList[2];

dlm[2] = new DefaultListModel<String>(); // id listesi

for(int i=0;i<2;i++)

{

dlm[i] = new DefaultListModel<String>();

jlist[i]= new JList<String>(dlm[i]);

JScrollPane jscp = new JScrollPane(jlist[i]);

jscp.setPreferredSize(new Dimension(90, 290));

if(i%2==0)

jpn1.add(jscp);

else

jpn2.add(jscp);

}

jtf1 = new JTextField();

jtf2 = new JTextField();

JButton jbtn1 = new JButton("Ekle");

JButton jbtn2 = new JButton("Sil");

jtf1.setPreferredSize(new Dimension(90, 30));

jtf2.setPreferredSize(new Dimension(90, 30));

jbtn1.setPreferredSize(new Dimension(90, 30));

jbtn2.setPreferredSize(new Dimension(90, 30));

jpn1.add(jtf1);

jpn1.add(jbtn1);

jpn2.add(jtf2);

jpn2.add(jbtn2);

jpn_main.add(jpn1);

jpn_main.add(jpn2);

jbtn1.setActionCommand("ekle");

jbtn1.addActionListener(this);

jbtn2.addActionListener(this);

this.add(jpn_main);

Connection conn = baglan();

verigetir(conn);

this.setVisible(true);

}

public void verigetir(Connection conn)

{

if(conn==null)

return;

try{

dlm[0].clear();

dlm[1].clear();

dlm[2].clear(); // id ler silindi

String sql = "select id,isim,telno from kullanicilar order by isim";

Statement st = conn.createStatement();

ResultSet rs = st.executeQuery(sql);

while(rs.next())

{

dlm[0].addElement(rs.getString("isim"));

dlm[1].addElement(rs.getString("telno"));

dlm[2].addElement(rs.getString("id")); // id ler listeye yukleniyor

}

catch(Exception ex)

{

JOptionPane.showMessageDialog(this, "Sorgu Hatasi!");

}

@Override

public void actionPerformed(ActionEvent arg0) {

Connection conn = baglan();

if(conn==null)

return;

try{

if(arg0.getActionCommand().equals("ekle"))

{

String sql="insert into kullanicilar (isim,telno) values(?,?)";

if(jtf1.getText().length()>0 && jtf2.getText().length()>0)

{

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf1.getText());

ps.setString(2, jtf2.getText());

ps.executeUpdate();

jtf1.setText("");

jtf2.setText("");

}

else

{

int secilen = jlist[0].getSelectedIndex();

if(secilen>-1)

{

String id = dlm[2].get(secilen);

String sql = "delete from kullanicilar where id=?;";

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, id);

int say = ps.executeUpdate();

//JOptionPane.showMessageDialog(this, "Silinen kayit:"+say);

}

}catch(Exception ex)

{

JOptionPane.showMessageDialog(this, "Hata: "+ex.getMessage());

}

verigetir(conn);

}

public Connection baglan()

{

Connection conn = null;

try{

Class.forName("org.sqlite.JDBC");

conn=DriverManager.getConnection("jdbc:sqlite:orgun1h7_1.db");

}catch(Exception ex)

{

JOptionPane.showMessageDialog(this, "Baglanti Hatasi!");

}

return conn;

}

/**

* @param args

public static void main(String[] args) {

new veritabani();

}

NTP2 (Bahar-2016) Hafta-7/1 sqlite-jdbc

Etiketler: createStatement, delete, executeQuery, getSelectedIndex, jdbc:sqlite, JOptionPane, org.sqlite.JDBC, PreparedStatement, ResultSet, sqlite, Statement, swing

NYP-2 2016 6. Hafta Uygulamaları

Tarafından caglar Yayınlanan 17 Mart 2016 C#, Ders Notları, Nesneye Yönelik Programlama-II, Yazılım de yazılmıştır. Yorum Yok

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 MySql.Data.MySqlClient;


namespace alisverissepeti
{
    public partial class Form1 : Form
    {
        DataTable dt1, dt2;
        MySqlDataAdapter da1, da2;

        public Form1()
        {
            InitializeComponent();
            rbalis.Checked = true;

            MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();
            bag.Server = "localhost";
            bag.UserID = "root";
            bag.Password = "123456";
            bag.Database = "hafta6_16_2";

            MySqlConnection conn = new MySqlConnection(bag.ToString());

            // urun tablosu sorgulari
            MySqlCommand cmd_urun_sel = 
                new MySqlCommand("select id, urunadi, alisfiyati, satisfiyati from urun", conn);
            da1 = new MySqlDataAdapter();
            da1.SelectCommand = cmd_urun_sel;

            // sepet tablosu sorgulari
            MySqlCommand cmd_sepet_sel = 
                new MySqlCommand("select id,urunid,miktar,tip from sepet", conn);
            MySqlCommand cmd_sepet_ins = 
                new MySqlCommand("insert into sepet(urunid,miktar,tip) values(@urunid,@miktar,@tip)", conn);
            cmd_sepet_ins.Parameters.Add("@urunid", MySqlDbType.Int32, 11, "urunid");
            cmd_sepet_ins.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");
            cmd_sepet_ins.Parameters.Add("@tip", MySqlDbType.Int32, 11, "tip");
            MySqlCommand cmd_sepet_del = 
                new MySqlCommand("delete from sepet where id=@id", conn);
            cmd_sepet_del.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");

            da2 = new MySqlDataAdapter();
            da2.SelectCommand = cmd_sepet_sel;
            da2.InsertCommand = cmd_sepet_ins;
            da2.DeleteCommand = cmd_sepet_del;
            urungetir();
            sepetgetir();
        }

        private void urungetir()
        {
            curun.Items.Clear();
            try
            {
                dt1 = new DataTable();
                da1.Fill(dt1);
                int satirsay = dt1.Rows.Count;
                for (int i = 0; i < satirsay; i++)
                    curun.Items.Add(dt1.Rows[i]["urunadi"]);

                curun.Text = "Seçiniz";
            }
            catch
            {
                curun.Text = "Hata";
            }
        }

        private void sepetgetir()
        { 
            double tutar=0;
            lurun.Items.Clear();
            lmiktar.Items.Clear();
            lislem.Items.Clear();
            ltutar.Items.Clear();
            try
            {
                dt2 = new DataTable();
                da2.Fill(dt2);

                int satirsay = dt2.Rows.Count;
                for (int i = 0; i < satirsay; i++)
                {
                    int urunid= (int)dt2.Rows[i]["urunid"];
                    int miktar = (int)dt2.Rows[i]["miktar"];
                    int tip = (int)dt2.Rows[i]["tip"];
                    double uruntutar = 0;
                    DataRow dr = urunbul(urunid);
                    if (dr != null)
                    {
                        lurun.Items.Add(dr["urunadi"]);
                        lmiktar.Items.Add(miktar);
                        if (tip == 0)
                        {
                            lislem.Items.Add("Alış");
                            uruntutar = miktar * (double)dr["alisfiyati"];
                            tutar -= uruntutar;
                        }
                        else
                        {
                            lislem.Items.Add("Satış");
                            uruntutar = miktar * (double)dr["satisfiyati"];
                            tutar += uruntutar;
                        }
                        ltutar.Items.Add(uruntutar);
                    }
                }

                curun.Text = "Seçiniz";
            }
            catch
            {
                curun.Text = "Hata";
            }
            latutar.Text = tutar + " TL";
        }

        private DataRow urunbul(int id)
        {
            int satirsay = dt1.Rows.Count;
            for(int i=0;i<satirsay;i++)
            {
                if ((int)dt1.Rows[i]["id"] == id)
                    return dt1.Rows[i];
            }
            return null;

            
        }

         private DataRow urunbul1(int id)
        {
            try
            {
                DataRow[] dr = dt1.Select("id=" + id); // datatable icerisinde yer alan bir kolon ile ilgili filtre
                if (dr.Length > 0)
                    return dr[0];
            }
            catch
            { 
            
            }

            return null;
        }

        private void bekle_Click(object sender, EventArgs e)
        {
            int miktar;
            int secilen = curun.SelectedIndex;
            bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

            if (secilen > -1 && kontrol)
            {
                try
                {
                    DataRow dr = dt2.NewRow();
                    dr["urunid"] = dt1.Rows[secilen]["id"];// ekleme siralari ayni oldugu icin 
                    dr["miktar"] = miktar;
                    if (rbalis.Checked)
                        dr["tip"] = 0;
                    else
                        dr["tip"] = 1;

                    dt2.Rows.Add(dr);
                    da2.Update(dt2);
                    curun.Text = "Seçiniz";
                    rbalis.Checked = true;
                    tmiktar.Clear();
                }
                catch
                { }
                sepetgetir(); // liste guncelle
            }
        }

        private void bsil_Click(object sender, EventArgs e)
        {
            int secilen = lurun.SelectedIndex;
            if (secilen > -1)
            {
                try
                {
                    dt2.Rows[secilen].Delete();
                    da2.Update(dt2);
                }
                catch
                { }
                sepetgetir(); // listeyi guncelle
            }
        }
    }
}

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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 MySql.Data.MySqlClient;

namespace alisverissepeti

{

public partial class Form1 : Form

{

DataTable dt1, dt2;

MySqlDataAdapter da1, da2;

public Form1()

{

InitializeComponent();

rbalis.Checked = true;

MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();

bag.Server = "localhost";

bag.UserID = "root";

bag.Password = "123456";

bag.Database = "hafta6_16_2";

MySqlConnection conn = new MySqlConnection(bag.ToString());

// urun tablosu sorgulari

MySqlCommand cmd_urun_sel =

new MySqlCommand("select id, urunadi, alisfiyati, satisfiyati from urun", conn);

da1 = new MySqlDataAdapter();

da1.SelectCommand = cmd_urun_sel;

// sepet tablosu sorgulari

MySqlCommand cmd_sepet_sel =

new MySqlCommand("select id,urunid,miktar,tip from sepet", conn);

MySqlCommand cmd_sepet_ins =

new MySqlCommand("insert into sepet(urunid,miktar,tip) values(@urunid,@miktar,@tip)", conn);

cmd_sepet_ins.Parameters.Add("@urunid", MySqlDbType.Int32, 11, "urunid");

cmd_sepet_ins.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

cmd_sepet_ins.Parameters.Add("@tip", MySqlDbType.Int32, 11, "tip");

MySqlCommand cmd_sepet_del =

new MySqlCommand("delete from sepet where id=@id", conn);

cmd_sepet_del.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");

da2 = new MySqlDataAdapter();

da2.SelectCommand = cmd_sepet_sel;

da2.InsertCommand = cmd_sepet_ins;

da2.DeleteCommand = cmd_sepet_del;

urungetir();

sepetgetir();

}

private void urungetir()

{

curun.Items.Clear();

try

{

dt1 = new DataTable();

da1.Fill(dt1);

int satirsay = dt1.Rows.Count;

for (int i = 0; i < satirsay; i++)

curun.Items.Add(dt1.Rows[i]["urunadi"]);

curun.Text = "Seçiniz";

}

catch

{

curun.Text = "Hata";

}

private void sepetgetir()

{

double tutar=0;

lurun.Items.Clear();

lmiktar.Items.Clear();

lislem.Items.Clear();

ltutar.Items.Clear();

try

{

dt2 = new DataTable();

da2.Fill(dt2);

int satirsay = dt2.Rows.Count;

for (int i = 0; i < satirsay; i++)

{

int urunid= (int)dt2.Rows[i]["urunid"];

int miktar = (int)dt2.Rows[i]["miktar"];

int tip = (int)dt2.Rows[i]["tip"];

double uruntutar = 0;

DataRow dr = urunbul(urunid);

if (dr != null)

{

lurun.Items.Add(dr["urunadi"]);

lmiktar.Items.Add(miktar);

if (tip == 0)

{

lislem.Items.Add("Alış");

uruntutar = miktar * (double)dr["alisfiyati"];

tutar -= uruntutar;

}

else

{

lislem.Items.Add("Satış");

uruntutar = miktar * (double)dr["satisfiyati"];

tutar += uruntutar;

}

ltutar.Items.Add(uruntutar);

}

curun.Text = "Seçiniz";

}

catch

{

curun.Text = "Hata";

}

latutar.Text = tutar + " TL";

}

private DataRow urunbul(int id)

{

int satirsay = dt1.Rows.Count;

for(int i=0;i<satirsay;i++)

{

if ((int)dt1.Rows[i]["id"] == id)

return dt1.Rows[i];

}

return null;

}

private DataRow urunbul1(int id)

{

try

{

DataRow[] dr = dt1.Select("id=" + id); // datatable icerisinde yer alan bir kolon ile ilgili filtre

if (dr.Length > 0)

return dr[0];

}

catch

{

}

return null;

}

private void bekle_Click(object sender, EventArgs e)

{

int miktar;

int secilen = curun.SelectedIndex;

bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

if (secilen > -1 && kontrol)

{

try

{

DataRow dr = dt2.NewRow();

dr["urunid"] = dt1.Rows[secilen]["id"];// ekleme siralari ayni oldugu icin

dr["miktar"] = miktar;

if (rbalis.Checked)

dr["tip"] = 0;

else

dr["tip"] = 1;

dt2.Rows.Add(dr);

da2.Update(dt2);

curun.Text = "Seçiniz";

rbalis.Checked = true;

tmiktar.Clear();

}

catch

{ }

sepetgetir(); // liste guncelle

}

private void bsil_Click(object sender, EventArgs e)

{

int secilen = lurun.SelectedIndex;

if (secilen > -1)

{

try

{

dt2.Rows[secilen].Delete();

da2.Update(dt2);

}

catch

{ }

sepetgetir(); // listeyi guncelle

}

CREATE SCHEMA `hafta6_16_2` DEFAULT CHARACTER SET utf8 COLLATE utf8_turkish_ci ;

CREATE TABLE `hafta6_16_2`.`urun` (
  `id` INT NOT NULL AUTO_INCREMENT COMMENT '',
  `urunadi` VARCHAR(45) NULL COMMENT '',
  `alisfiyati` DOUBLE NULL COMMENT '',
  `satisfiyati` DOUBLE NULL COMMENT '',
  PRIMARY KEY (`id`)  COMMENT '');

  CREATE TABLE `hafta6_16_2`.`sepet` (
  `id` INT NOT NULL AUTO_INCREMENT COMMENT '',
  `urunid` INT NULL COMMENT '',
  `miktar` INT NULL COMMENT '',
  `tip` INT NULL COMMENT '',
  PRIMARY KEY (`id`)  COMMENT '');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Masa', '25', '45');
INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Sandalye', '15', '20');
INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Sehpa', '5', '15');
INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('TV', '1200', '1350');
INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Halı', '450', '600');

CREATE SCHEMA `hafta6_16_2` DEFAULT CHARACTER SET utf8 COLLATE utf8_turkish_ci ;

CREATE TABLE `hafta6_16_2`.`urun` (

`id` INT NOT NULL AUTO_INCREMENT COMMENT '',

`urunadi` VARCHAR(45) NULL COMMENT '',

`alisfiyati` DOUBLE NULL COMMENT '',

`satisfiyati` DOUBLE NULL COMMENT '',

PRIMARY KEY (`id`) COMMENT '');

CREATE TABLE `hafta6_16_2`.`sepet` (

`id` INT NOT NULL AUTO_INCREMENT COMMENT '',

`urunid` INT NULL COMMENT '',

`miktar` INT NULL COMMENT '',

`tip` INT NULL COMMENT '',

PRIMARY KEY (`id`) COMMENT '');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Masa', '25', '45');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Sandalye', '15', '20');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Sehpa', '5', '15');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('TV', '1200', '1350');

INSERT INTO `hafta6_16_2`.`urun` (`urunadi`, `alisfiyati`, `satisfiyati`) VALUES ('Halı', '450', '600');

NYP-2 2016 6. Hafta Uygulamaları

Etiketler: c#, c# veritabanı, csharp, DataTable, delete, DeleteCommand, insert, InsertCommand, mysql, MySqlConnection, MySqlConnectionStringBuilder, MysqlDataAdapter, MySqlDbType, Parameters, Parameters.Add(), select, SelectCommand, update

NYP-2 2016 5. Hafta Uygulamaları

Tarafından caglar Yayınlanan 9 Mart 2016 C#, Ders Notları, Nesneye Yönelik Programlama-II, Yazılım de yazılmıştır. Yorum Yok

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 MySql.Data.MySqlClient;

namespace depo
{
    public partial class Form1 : Form
    {
        MySqlDataAdapter da;
        DataTable dt;

        public Form1()
        {
            InitializeComponent();

            MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();
            bag.Server = "localhost";
            bag.UserID = "root";
            bag.Password = "123456";
            bag.Database = "hafta5_16_1";

            MySqlConnection conn = new MySqlConnection(bag.ToString());
            MySqlCommand cmd_sel = new MySqlCommand("select id,isim,miktar from depo;", conn);
            MySqlCommand cmd_ins = new MySqlCommand("insert into depo(isim,miktar) values (@isim,@miktar);",conn);
            cmd_ins.Parameters.Add("@isim", MySqlDbType.VarChar, 45, "isim");
            cmd_ins.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

            MySqlCommand cmd_del = new MySqlCommand("delete from depo where id=@id", conn);
            cmd_del.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");

            MySqlCommand cmd_upd = new MySqlCommand("update depo set isim=@isim, miktar=@miktar where id=@id",conn);
            cmd_upd.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");
            cmd_upd.Parameters.Add("@isim", MySqlDbType.VarChar, 45, "isim");
            cmd_upd.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

            da = new MySqlDataAdapter();
            da.SelectCommand = cmd_sel;
            da.InsertCommand = cmd_ins;
            da.DeleteCommand = cmd_del;
            da.UpdateCommand = cmd_upd;

            verigetir();
        }

        private void bekle_Click(object sender, EventArgs e)
        {
            int miktar;
            bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

            if (kontrol && turun.Text.Length > 0)
            {

                try
                {
                    DataRow dr = dt.NewRow(); // mevcut tablodan yeni bir satir turettik
                    dr["isim"] = turun.Text;
                    dr["miktar"] = miktar;
                    dt.Rows.Add(dr); // olusturulan yeni satir tabloya eklendi
                    da.Update(dt);
                    turun.Clear();
                    tmiktar.Clear();

                }
                catch
                { 
                }

                verigetir();
            }



        }


        private void verigetir()
        {
            try
            {
                dt = new DataTable();
                da.Fill(dt);
                lurun.Items.Clear();
                lmiktar.Items.Clear();

                int satirsay = dt.Rows.Count;
                for (int i = 0; i < satirsay; i++)
                {
                    lurun.Items.Add(dt.Rows[i]["isim"]);
                    lmiktar.Items.Add(dt.Rows[i]["miktar"]);
                }
            }
            catch { 
            
            }
        
        
        }

        private void bsil_Click(object sender, EventArgs e)
        {

            int index = lurun.SelectedIndex;
            if (index > -1)
            {
                try
                {
                    dt.Rows[index].Delete();
                    da.Update(dt);
                }
                catch
                { 
                 
                }
                verigetir();
            }



        }

        private void bguncelleme_Click(object sender, EventArgs e)
        {
            int index = lurun.SelectedIndex;
             int miktar;
            bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

            if (kontrol && index>-1 && turun.Text.Length > 0)
            {

                try
                {
                    DataRow dr = dt.Rows[index]; // mevcut satiri getirdik
                    dr["isim"] = turun.Text;
                    dr["miktar"] = miktar;
                    da.Update(dt);
                    turun.Clear();
                    tmiktar.Clear();
                    verigetir();
                }
                catch
                { 
                    //
                }
            }


        }

    }
}

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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 MySql.Data.MySqlClient;

namespace depo

{

public partial class Form1 : Form

{

MySqlDataAdapter da;

DataTable dt;

public Form1()

{

InitializeComponent();

MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();

bag.Server = "localhost";

bag.UserID = "root";

bag.Password = "123456";

bag.Database = "hafta5_16_1";

MySqlConnection conn = new MySqlConnection(bag.ToString());

MySqlCommand cmd_sel = new MySqlCommand("select id,isim,miktar from depo;", conn);

MySqlCommand cmd_ins = new MySqlCommand("insert into depo(isim,miktar) values (@isim,@miktar);",conn);

cmd_ins.Parameters.Add("@isim", MySqlDbType.VarChar, 45, "isim");

cmd_ins.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

MySqlCommand cmd_del = new MySqlCommand("delete from depo where id=@id", conn);

cmd_del.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");

MySqlCommand cmd_upd = new MySqlCommand("update depo set isim=@isim, miktar=@miktar where id=@id",conn);

cmd_upd.Parameters.Add("@id", MySqlDbType.Int32, 11, "id");

cmd_upd.Parameters.Add("@isim", MySqlDbType.VarChar, 45, "isim");

cmd_upd.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

da = new MySqlDataAdapter();

da.SelectCommand = cmd_sel;

da.InsertCommand = cmd_ins;

da.DeleteCommand = cmd_del;

da.UpdateCommand = cmd_upd;

verigetir();

}

private void bekle_Click(object sender, EventArgs e)

{

int miktar;

bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

if (kontrol && turun.Text.Length > 0)

{

try

{

DataRow dr = dt.NewRow(); // mevcut tablodan yeni bir satir turettik

dr["isim"] = turun.Text;

dr["miktar"] = miktar;

dt.Rows.Add(dr); // olusturulan yeni satir tabloya eklendi

da.Update(dt);

turun.Clear();

tmiktar.Clear();

}

catch

{

}

verigetir();

}

private void verigetir()

{

try

{

dt = new DataTable();

da.Fill(dt);

lurun.Items.Clear();

lmiktar.Items.Clear();

int satirsay = dt.Rows.Count;

for (int i = 0; i < satirsay; i++)

{

lurun.Items.Add(dt.Rows[i]["isim"]);

lmiktar.Items.Add(dt.Rows[i]["miktar"]);

}

catch {

}

private void bsil_Click(object sender, EventArgs e)

{

int index = lurun.SelectedIndex;

if (index > -1)

{

try

{

dt.Rows[index].Delete();

da.Update(dt);

}

catch

{

}

verigetir();

}

private void bguncelleme_Click(object sender, EventArgs e)

{

int index = lurun.SelectedIndex;

int miktar;

bool kontrol = Int32.TryParse(tmiktar.Text, out miktar);

if (kontrol && index>-1 && turun.Text.Length > 0)

{

try

{

DataRow dr = dt.Rows[index]; // mevcut satiri getirdik

dr["isim"] = turun.Text;

dr["miktar"] = miktar;

da.Update(dt);

turun.Clear();

tmiktar.Clear();

verigetir();

}

catch

{

}

CREATE SCHEMA `hafta5_16_1` DEFAULT CHARACTER SET utf8 COLLATE utf8_turkish_ci ;
CREATE TABLE `hafta5_16_1`.`depo` (
  `id` INT NOT NULL AUTO_INCREMENT COMMENT '',
  `isim` VARCHAR(45) NULL COMMENT '',
  `miktar` INT NULL COMMENT '',
  PRIMARY KEY (`id`)  COMMENT '');