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Using system.Data.OleDb;
Form.cs1
OleDbConnection baglanti = new OleDbConnection(“datayı sil linki tapıstır”);
OleDbCommand komut= new OleDbCommand();
DataSet ds = new DataSet();
void listele()
{
baglanti.open();
OleDbDataAdapter adtr = new OleDbDataAdapter(“Select*From tabloadı” , baglanti);
adtr.Fiil(ds,”tabloadı”);
dataGridViev1.DataSource =ds.Tables[“Tabloadı”];
adtr.dispose();
baglanti.close();
}
göster butonu
listele();
Kaydet
komut.Connection = baglanti;
komut.CommandText=“insert into tablo adı (ögrencino,ad,soyad) values (‘“textBox1.Text+“‘,...)”,baglanti;
baglanti.open();
komut.ExecuteNonQuery();
komut.Dispose();
baglanti.Close();
Sil butonu
baglanti.open();
komut.Connection=baglanti;
komut.CommandText=“Delete From tabloadı where id = “ +Convert.ToInt32(textbox1.Text);
komut.ExecuteNonQuery();
komut.Dispose();
baglanti.Close();
ds.Tables[“tabloadı”].Clear();
textBox1.Clear();
Güncelle butonu
baglanti.Open();
komut.Connection = baglanti;
komut.CommandText=“Update Tabloadı Set ogrencino = ‘“textBox2.Text+”’ , ad=‘“textBox3.Text+’” where id = “ + Convert.ToInt32(textBox1.Text)+””;
Komut.EyeNonQuery();
Komut.dispose();
Baglanti.Close;
arama butonu
OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=chartdata.mdb");
private void Form1_Load(object sender, EventArgs e)
{
conn.Open();
OleDbCommand cmd = new OleDbCommand("select * from regions where RegionID=? ", conn);
cmd.Parameters.AddWithValue("p1","2");
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
this.dataGridView1.DataSource = dt;
conn.Close();
}
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