private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
 {
     sinifpersonel = new SinifPersonel();
     if (e.ColumnIndex == dataGridView1.Columns.Count - 1)
     {
         sinifpersonel.mpersonel            = new ModelPersonel();
         sinifpersonel.mpersonel.PersonelId = dataGridView1.CurrentRow.Cells[0].Value.ToString();
         if (sinifpersonel.Sil())
         {
             MessageBox.Show("Personel Silindi");
         }
         new AracPersonel().PersonelDataGrid(dataGridView1);
     }
     else if (e.ColumnIndex == dataGridView1.Columns.Count - 2)
     {
         sinifpersonel.mpersonel            = new ModelPersonel(); int a = 0;
         sinifpersonel.mpersonel.PersonelId = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         sinifpersonel.mpersonel.Ad         = textBox1.Text = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         sinifpersonel.mpersonel.Soyad      = textBox2.Text = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         sinifpersonel.mpersonel.TC         = textBox3.Text = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         sinifpersonel.mpersonel.Unvan      = textBox4.Text = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         sinifpersonel.mpersonel.Maas       = textBox5.Text = dataGridView1.CurrentRow.Cells[a].Value.ToString(); a++;
         button1.Text   = "GÜNCELLE";
         groupBox1.Text = "PERSONEL GÜNCELLE";
     }
 }