private void dateTimePicker1_ValueChanged(object sender, EventArgs e) 
          { 
              baglanti.Open(); 
              komut.Connection = baglanti; 
              komut.CommandText = "select ad,açıklama from Tablo1 where tarih=#" + dateTimePicker1.Value.ToShortDateString().Replace('.', '/') + "#"; 
              OleDbDataReader dr = komut.ExecuteReader(); 
              while (dr.Read()) 
              { 
                  try 
                  { 
                      textBox1.Text = dr["ad"].ToString(); 
                      textBox2.Text = dr["açıklama"].ToString(); 
                  } 
                  catch { } 
                 baglanti.close(); 
              } 
          }

 private void button2_Click(object sender, EventArgs e) 
          {        
              baglanti.Open(); 
              komut.Connection = baglanti; 
              komut.CommandText = "Delete From Tablo1 where tarih='" + dateTimePicker2.Value.ToShortDateString() + "'"; 
              komut.ExecuteNonQuery(); 
              komut.Dispose(); 
              baglanti.Close();      
              ds.Tables["Tablo1"].Clear(); 
              listele();        
          }