VERİTABANI İŞLEMLERİ () Csharp
using System;using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Data.OleDb;
using System.Windows.Forms;
namespace Veritabanı İşlemleri
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
// Veritabanı Bağlantı Komutları
OleDbConnection baglanti = newOleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\vt1.mdb");
OleDbCommand kmt = new OleDbCommand();
OleDbDataAdapter adtr = new OleDbDataAdapter()
DataSet dtst = new DataSet();
private void Form1_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'vt1DataSet.rehber' table. You can move, or remove it, as needed.
this.rehberTableAdapter.Fill(this.vt1DataSet.rehber);
try
{
baglanti.Open();
baglanti.Close();
}
catch (Exception hata)
{
MessageBox.Show(hata.Message.ToString());
}
dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
listele();
goster();
textBox1.DataBindings.Add("text", dtst, "rehber.Kno");
textBox2.DataBindings.Add("text", dtst, "rehber.Adı");
textBox3.DataBindings.Add("text", dtst, "rehber.Soyadı");
textBox4.DataBindings.Add("text", dtst, "rehber.Telefon");
}
// Yeni Butonu
private void button1_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].AddNew();
textBox2.Clear();
textBox3.Clear();
textBox4.Clear();
textBox2.Focus();
}
// İptal Butonu
private void button2_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].CancelCurrentEdit();
}
// Kaydet Butonu
private void button3_Click(object sender, EventArgs e)
{
baglanti.Open();
kmt.Connection = baglanti;
kmt.CommandText = "insert into rehber(Adı,Soyadı,Telefon)values('" + textBox2.Text + "','" + textBox3.Text + "','" + textBox4.Text + "')";
kmt.ExecuteNonQuery();
kmt.Dispose();
baglanti.Close();
dtst.Clear();
listele();
MessageBox.Show("Kayıt Yapıldı");
}
// Düzelt Butonu
private void button4_Click(object sender, EventArgs e)
{
baglanti.Open();
kmt.Connection = baglanti;
kmt.CommandText = "update rehber set adı='" + textBox2.Text + "',soyadı='" + textBox3.Text + "',telefon='" + textBox4.Text + "' where Kno=" + textBox1.Text + "";
kmt.ExecuteNonQuery();
kmt.Dispose();
dtst.Clear();
baglanti.Close();
listele();
goster();
}
// Sil Butonu
private void button5_Click(object sender, EventArgs e)
{
baglanti.Open();
kmt.Connection = baglanti;
kmt.CommandText = "delete from rehber where Adı='" + textBox2.Text + "'";
kmt.ExecuteNonQuery();
kmt.Dispose();
baglanti.Close();
dtst.Clear();
listele();
goster();
}
// Arama Butonu
private void button6_Click(object sender, EventArgs e)
{
string bul;
bul = "select * from rehber where " + comboBox1.Text + " like '" + textBox6.Text + "%'";
dtst.Clear();
baglanti.Open();
if (textBox6.Text == "")
{
adtr = new OleDbDataAdapter("select * from rehber", baglanti);
}
else
{
adtr = new OleDbDataAdapter(bul, baglanti);
}
adtr.Fill(dtst, "rehber");
dataGridView1.DataSource = dtst;
dataGridView1.DataMember = "rehber";
baglanti.Close();
adtr.Dispose();
listele()
goster()
}
int kayno, topkay;
void goster()
{
kayno = this.BindingContext[dtst, "rehber"].Position + 1;
topkay = this.dtst.Tables["rehber"].Rows.Count;
textBox6.Text = (kayno).ToString() + " / " + (topkay).ToString();
}
private void listele()
{
baglanti.Open();
adtr = new OleDbDataAdapter("select * from rehber", baglanti);
adtr.Fill(dtst, "rehber");
dataGridView1.DataSource = dtst;
dataGridView1.DataMember = "rehber";
baglanti.Close();
adtr.Dispose();
}
// İlk Kayıt Butonu
private void button7_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].Position = 0;
goster();
}
// Son Kayıt Butonu
private void button10_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].Position =this.dtst.Tables["rehber"].Rows.Count - 1;
göster();
}
// Önceki Kayıt Butonu
private void button8_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].Position -= 1;
göster();
}
// Sonraki Kayıt Butonu
private void button9_Click(object sender, EventArgs e)
{
this.BindingContext[dtst, "rehber"].Position += 1;
göster();
}
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