MySqlConnection – oflazoglu.org

NYP-2 2016 8. Hafta Uygulamaları

Tarafından caglar Yayınlanan 9 Mayıs 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 puanlama
{
    public partial class Form1 : Form
    {
        MySqlDataAdapter da_katsayilar, da_kisiler, da_puanlar;
        DataTable dt_katsayilar, dt_kisiler, dt_puanlar;
        public Form1()
        {
            InitializeComponent();
            MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();
            bag.Server = "localhost";
            bag.UserID = "root";
            bag.Password = "123456";
            bag.Database = "hafta8_16_2";

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

            MySqlCommand cmd_katsayilar_sel = 
                new MySqlCommand("select id,adi,puan from katsayilar;", conn);

            da_katsayilar = new MySqlDataAdapter();
            da_katsayilar.SelectCommand = cmd_katsayilar_sel;

            MySqlCommand cmd_kisiler_sel = 
                new MySqlCommand("select id,isimler from kisiler order by isimler;", conn);
            da_kisiler = new MySqlDataAdapter();
            da_kisiler.SelectCommand = cmd_kisiler_sel;

            MySqlCommand cmd_puanlar_sel = 
                new MySqlCommand("select id,kisiid,puanturu, miktar from puanlar;",conn);
            
            MySqlCommand cmd_puanlar_ins =
                new MySqlCommand("insert into puanlar(kisiid,puanturu,miktar) values(@kisiid,@puanturu,@miktar);", conn);
            cmd_puanlar_ins.Parameters.Add("@kisiid", MySqlDbType.Int32, 11, "kisiid");
            cmd_puanlar_ins.Parameters.Add("@puanturu", MySqlDbType.Int32, 11, "puanturu");
            cmd_puanlar_ins.Parameters.Add("@miktar", MySqlDbType.Int32, 11, "miktar");

            MySqlCommand cmd_puanlar_del =
               new MySqlCommand("delete from puanlar where id=@id;", conn);
            cmd_puanlar_del.Parameters.Add("@id",MySqlDbType.Int32,11,"id");
          
            da_puanlar = new MySqlDataAdapter();
            da_puanlar.SelectCommand = cmd_puanlar_sel;
            da_puanlar.DeleteCommand = cmd_puanlar_del;
            da_puanlar.InsertCommand = cmd_puanlar_ins;
            listedoldur();
        }

        private void bpuanlama_Click(object sender, EventArgs e)
        {
            fpuanlama frm = new fpuanlama(da_katsayilar, da_kisiler, da_puanlar);
            frm.ShowDialog();
            listedoldur();
        }

        private void kisilerigetir()
        {
            try
            {
                dt_kisiler = new DataTable();
                da_kisiler.Fill(dt_kisiler);
            }
            catch
            { }
        }
        

        private void katsayilarigetir()
        {
            try
            {
                dt_katsayilar = new DataTable();
                da_katsayilar.Fill(dt_katsayilar);
            }
            catch
            { }
        }

        private void puanlarigetir()
        {
            try
            {
                dt_puanlar = new DataTable();
                da_puanlar.Fill(dt_puanlar);
            }
            catch
            { }
        }

        private void listedoldur()
        {
            kisilerigetir();
            katsayilarigetir();
            puanlarigetir();

            lisim.Items.Clear();
            lpuan.Items.Clear();
            lderece.Items.Clear();
            int say = dt_kisiler.Rows.Count;

            for (int i = 0; i < say; i++)
            {
                int kisi_id = (int)dt_kisiler.Rows[i]["id"];
                int puantoplami = puantoplamihesapla(kisi_id);
                if (puantoplami > 0)
                {
                    lisim.Items.Add(dt_kisiler.Rows[i]["isimler"]);
                    lpuan.Items.Add(puantoplami);
                    lderece.Items.Add(derecehesapla(puantoplami));
                }
            }        
        }

        private int puantoplamihesapla(int kisiid)
        {
            int toplam = 0;
            // puanlistesi
            DataRow[] dr = dt_puanlar.Select("kisiid=" + kisiid);

            for (int i = 0; i < dr.Length; i++)
            {
                int miktar = (int)dr[i]["miktar"];
                int puanturu_id = (int)dr[i]["puanturu"];
                // puan katsayilari
                int katsayi = katsayibul(puanturu_id);
                toplam += miktar * katsayi;
            }
            return toplam;
        }

        private int katsayibul(int katsayi_id)
        {
            DataRow[] dr = dt_katsayilar.Select("id=" + katsayi_id);
            if (dr.Length > 0)
                return (int)dr[0]["puan"];
            return 0;
        }

        private string derecehesapla(int toplampuan)
        { 
            // hesaplama alg. yazilacak
            // her 50 puan icin bir yildiz
            return "*";
        }
    }
}

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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 puanlama

{

public partial class Form1 : Form

{

MySqlDataAdapter da_katsayilar, da_kisiler, da_puanlar;

DataTable dt_katsayilar, dt_kisiler, dt_puanlar;

public Form1()

{

InitializeComponent();

MySqlConnectionStringBuilder bag = new MySqlConnectionStringBuilder();

bag.Server = "localhost";

bag.UserID = "root";

bag.Password = "123456";

bag.Database = "hafta8_16_2";

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

MySqlCommand cmd_katsayilar_sel =

new MySqlCommand("select id,adi,puan from katsayilar;", conn);

da_katsayilar = new MySqlDataAdapter();

da_katsayilar.SelectCommand = cmd_katsayilar_sel;

MySqlCommand cmd_kisiler_sel =

new MySqlCommand("select id,isimler from kisiler order by isimler;", conn);

da_kisiler = new MySqlDataAdapter();

da_kisiler.SelectCommand = cmd_kisiler_sel;

MySqlCommand cmd_puanlar_sel =

new MySqlCommand("select id,kisiid,puanturu, miktar from puanlar;",conn);

MySqlCommand cmd_puanlar_ins =

new MySqlCommand("insert into puanlar(kisiid,puanturu,miktar) values(@kisiid,@puanturu,@miktar);", conn);

cmd_puanlar_ins.Parameters.Add("@kisiid", MySqlDbType.Int32, 11, "kisiid");

cmd_puanlar_ins.Parameters.Add("@puanturu", MySqlDbType.Int32, 11, "puanturu");

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

MySqlCommand cmd_puanlar_del =

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

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

da_puanlar = new MySqlDataAdapter();

da_puanlar.SelectCommand = cmd_puanlar_sel;

da_puanlar.DeleteCommand = cmd_puanlar_del;

da_puanlar.InsertCommand = cmd_puanlar_ins;

listedoldur();

}

private void bpuanlama_Click(object sender, EventArgs e)

{

fpuanlama frm = new fpuanlama(da_katsayilar, da_kisiler, da_puanlar);

frm.ShowDialog();

listedoldur();

}

private void kisilerigetir()

{

try

{

dt_kisiler = new DataTable();

da_kisiler.Fill(dt_kisiler);

}

catch

{ }

}

private void katsayilarigetir()

{

try

{

dt_katsayilar = new DataTable();

da_katsayilar.Fill(dt_katsayilar);

}

catch

{ }

}

private void puanlarigetir()

{

try

{

dt_puanlar = new DataTable();

da_puanlar.Fill(dt_puanlar);

}

catch

{ }

}

private void listedoldur()

{

kisilerigetir();

katsayilarigetir();

puanlarigetir();

lisim.Items.Clear();

lpuan.Items.Clear();

lderece.Items.Clear();

int say = dt_kisiler.Rows.Count;

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

{

int kisi_id = (int)dt_kisiler.Rows[i]["id"];

int puantoplami = puantoplamihesapla(kisi_id);

if (puantoplami > 0)

{

lisim.Items.Add(dt_kisiler.Rows[i]["isimler"]);

lpuan.Items.Add(puantoplami);

lderece.Items.Add(derecehesapla(puantoplami));

}

private int puantoplamihesapla(int kisiid)

{

int toplam = 0;

// puanlistesi

DataRow[] dr = dt_puanlar.Select("kisiid=" + kisiid);

for (int i = 0; i < dr.Length; i++)

{

int miktar = (int)dr[i]["miktar"];

int puanturu_id = (int)dr[i]["puanturu"];

// puan katsayilari

int katsayi = katsayibul(puanturu_id);

toplam += miktar * katsayi;

}

return toplam;

}

private int katsayibul(int katsayi_id)

{

DataRow[] dr = dt_katsayilar.Select("id=" + katsayi_id);

if (dr.Length > 0)

return (int)dr[0]["puan"];

return 0;

}

private string derecehesapla(int toplampuan)

{

// hesaplama alg. yazilacak

// her 50 puan icin bir yildiz

return "*";

}

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 puanlama
{
    public partial class fpuanlama : Form
    {
        MySqlDataAdapter da_katsayilar, da_kisiler, da_puanlar;
        DataTable dt_katsayilar, dt_kisiler, dt_puanlar;
        public fpuanlama(MySqlDataAdapter _da1,MySqlDataAdapter _da2,MySqlDataAdapter _da3)
        {
            InitializeComponent();

            da_katsayilar = _da1;
            da_kisiler = _da2;
            da_puanlar = _da3;
            listedoldur();

        }

        private void isimdoldur()
        {
            cisim.Items.Clear();
            
            try
            {
                dt_kisiler = new DataTable();
                da_kisiler.Fill(dt_kisiler);

                int say = dt_kisiler.Rows.Count;
                for (int i = 0; i < say; i++)
                {
                    cisim.Items.Add(dt_kisiler.Rows[i]["isimler"]);
                }
            }
            catch
            { 
            }
            cisim.Text = "Seçiniz";
        }

        private void puanturudoldur()
        {
            cpuanturu.Items.Clear();

            try
            {
                dt_katsayilar  = new DataTable();
                da_katsayilar.Fill(dt_katsayilar);

                int say = dt_katsayilar.Rows.Count;
                for (int i = 0; i < say; i++)
                {
                    cpuanturu.Items.Add(dt_katsayilar.Rows[i]["adi"]);
                }
            }
            catch
            {
            }
            cpuanturu.Text = "Seçiniz";
        }


        private void listedoldur()
        {
            isimdoldur();
            puanturudoldur();

            lisim.Items.Clear();
            lpuanturu.Items.Clear();
            ladet.Items.Clear();

            try
            {
                dt_puanlar = new DataTable();
                da_puanlar.Fill(dt_puanlar);

                int say = dt_puanlar.Rows.Count;
                for (int i = 0; i < say; i++)
                {
                    DataRow dr_kisi = 
                        tablodangetir(dt_kisiler, (int)dt_puanlar.Rows[i]["kisiid"]);
                    DataRow dr_tur =
                        tablodangetir(dt_katsayilar, (int)dt_puanlar.Rows[i]["puanturu"]);

                    if (dr_kisi != null && dr_tur != null)
                    {
                        lisim.Items.Add(dr_kisi["isimler"]);
                        lpuanturu.Items.Add(dr_tur["adi"]);
                        ladet.Items.Add(dt_puanlar.Rows[i]["miktar"]);
                    }
                   /* else
                    {
                     // isim ve tur tanimi veritabaninda yer almiyor ise
                        lisim.Items.Add("-");
                        lpuanturu.Items.Add("-");
                        ladet.Items.Add(dt_puanlar.Rows[i]["miktar"]);
                    }*/
                }
            }
            catch
            { 
            
            }
        }

        private DataRow tablodangetir(DataTable dt,int id)
        {
            DataRow[] dr = dt.Select("id=" + id);
            if (dr.Length > 0)
                return dr[0];
            return null;
        }

        private void bekle_Click(object sender, EventArgs e)
        {
            int s_isim = cisim.SelectedIndex;
            int s_puanturu = cpuanturu.SelectedIndex;
            int miktar;
            bool k = Int32.TryParse(tadet.Text, out miktar);

            if ( k && s_isim > -1 && s_puanturu > -1)
            {
                try
                {
                    DataRow dr = dt_puanlar.NewRow();
                    dr["kisiid"] = (int)dt_kisiler.Rows[s_isim]["id"];
                    dr["puanturu"] = (int)dt_katsayilar.Rows[s_puanturu]["id"];
                    dr["miktar"] = miktar;
                    dt_puanlar.Rows.Add(dr);
                    da_puanlar.Update(dt_puanlar);
                }
                catch
                { 
                }

                tadet.Clear();
                listedoldur();
            }



        }

        private void bsil_Click(object sender, EventArgs e)
        {
            int secilen = lisim.SelectedIndex;

            if (secilen > -1)
            {
                try
                {
                    // dt_puanlar.Select(""); // tanimsiz bilgileri silmek icin tercih edilebilir
                    dt_puanlar.Rows[secilen].Delete();
                    da_puanlar.Update(dt_puanlar);
                }
                catch
                { }
                listedoldur();
            }


        }

        private void bkapat_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}

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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 puanlama

{

public partial class fpuanlama : Form

{

MySqlDataAdapter da_katsayilar, da_kisiler, da_puanlar;

DataTable dt_katsayilar, dt_kisiler, dt_puanlar;

public fpuanlama(MySqlDataAdapter _da1,MySqlDataAdapter _da2,MySqlDataAdapter _da3)

{

InitializeComponent();

da_katsayilar = _da1;

da_kisiler = _da2;

da_puanlar = _da3;

listedoldur();

}

private void isimdoldur()

{

cisim.Items.Clear();

try

{

dt_kisiler = new DataTable();

da_kisiler.Fill(dt_kisiler);

int say = dt_kisiler.Rows.Count;

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

{

cisim.Items.Add(dt_kisiler.Rows[i]["isimler"]);

}

catch

{

}

cisim.Text = "Seçiniz";

}

private void puanturudoldur()

{

cpuanturu.Items.Clear();

try

{

dt_katsayilar = new DataTable();

da_katsayilar.Fill(dt_katsayilar);

int say = dt_katsayilar.Rows.Count;

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

{

cpuanturu.Items.Add(dt_katsayilar.Rows[i]["adi"]);

}

catch

{

}

cpuanturu.Text = "Seçiniz";

}

private void listedoldur()

{

isimdoldur();

puanturudoldur();

lisim.Items.Clear();

lpuanturu.Items.Clear();

ladet.Items.Clear();

try

{

dt_puanlar = new DataTable();

da_puanlar.Fill(dt_puanlar);

int say = dt_puanlar.Rows.Count;

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

{

DataRow dr_kisi =

tablodangetir(dt_kisiler, (int)dt_puanlar.Rows[i]["kisiid"]);

DataRow dr_tur =

tablodangetir(dt_katsayilar, (int)dt_puanlar.Rows[i]["puanturu"]);

if (dr_kisi != null && dr_tur != null)

{

lisim.Items.Add(dr_kisi["isimler"]);

lpuanturu.Items.Add(dr_tur["adi"]);

ladet.Items.Add(dt_puanlar.Rows[i]["miktar"]);

}

/* else

{

// isim ve tur tanimi veritabaninda yer almiyor ise

lisim.Items.Add("-");

lpuanturu.Items.Add("-");

ladet.Items.Add(dt_puanlar.Rows[i]["miktar"]);

}*/

}

catch

{

}

private DataRow tablodangetir(DataTable dt,int id)

{

DataRow[] dr = dt.Select("id=" + id);

if (dr.Length > 0)

return dr[0];

return null;

}

private void bekle_Click(object sender, EventArgs e)

{

int s_isim = cisim.SelectedIndex;

int s_puanturu = cpuanturu.SelectedIndex;

int miktar;

bool k = Int32.TryParse(tadet.Text, out miktar);

if ( k && s_isim > -1 && s_puanturu > -1)

{

try

{

DataRow dr = dt_puanlar.NewRow();

dr["kisiid"] = (int)dt_kisiler.Rows[s_isim]["id"];

dr["puanturu"] = (int)dt_katsayilar.Rows[s_puanturu]["id"];

dr["miktar"] = miktar;

dt_puanlar.Rows.Add(dr);

da_puanlar.Update(dt_puanlar);

}

catch

{

}

tadet.Clear();

listedoldur();

}

private void bsil_Click(object sender, EventArgs e)

{

int secilen = lisim.SelectedIndex;

if (secilen > -1)

{

try

{

// dt_puanlar.Select(""); // tanimsiz bilgileri silmek icin tercih edilebilir

dt_puanlar.Rows[secilen].Delete();

da_puanlar.Update(dt_puanlar);

}

catch

{ }

listedoldur();

}

private void bkapat_Click(object sender, EventArgs e)

{

this.Close();

}

NYP-2 2016 Hafta-8

Etiketler: mysql, MySqlCommand, MySqlConnection, MySqlConnectionStringBuilder, MysqlDataAdapter

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 '');

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 '');

NYP-2 2016 5. Hafta Uygulamaları

Etiket: MySqlConnection

NYP-2 2016 8. Hafta Uygulamaları

NYP-2 2016 6. Hafta Uygulamaları

NYP-2 2016 5. Hafta Uygulamaları