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SqlCommand cmd;
SqlDataAdapter da;
DataSet ds;
SqlDataReader dr;
private void Form1_Load(object sender, EventArgs e)
{
}
private void btnGetir_Click(object sender, EventArgs e)
{
if (coni.State == ConnectionState.Closed)
{
coni.Open();
}
else
{
coni.Close();
}
da = new SqlDataAdapter("select * from ogrenciler", coni);
ds = new DataSet();
da.Fill(ds, "ogrenciler");
dataGridView1.DataSource = ds.Tables["ogrenciler"];
}
private void btnEkle_Click(object sender, EventArgs e)
{
if (coni.State == ConnectionState.Closed)
{
coni.Open();
}
cmd = new SqlCommand("insert into ogrenciler(ad,soyad,sinifi) values('" + txtbxAdi.Text + "','" + txtbxSoyad.Text + "','" + txtbxSinif.Text + "')", coni);
dr = cmd.ExecuteReader();
dr.Close();
Form1_Load(sender, e);
}
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
lblSecil.Text = dataGridView1.CurrentRow.Cells["ad"].Value.ToString();
}
private void btnGunc_Click(object sender, EventArgs e)
{
cmd = new SqlCommand("update ogrenciler set ad ='" + txtbxAdi.Text + "',soyad='" + txtbxSoyad.Text + "',sinifi='" + txtbxSinif.Text + "' where id='" + dataGridView1.CurrentRow.Cells["id"].Value.ToString() + "'", coni);
da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
txtbxAdi.Text = "";
txtbxSoyad.Text = "";
txtbxSinif.Text = "";
Form1_Load(sender, e);
}
private void btnSil_Click(object sender, EventArgs e)
{
try
{
if (coni.State == ConnectionState.Closed)
{
coni.Open();
}
SqlDataReader dr;
SqlCommand cmd = new SqlCommand("delete from Ogrenciler where id='" + dataGridView1.CurrentRow.Cells["id"].Value.ToString() + "'", coni);
dr = cmd.ExecuteReader();
dr.Close();
}
catch (Exception)
{
MessageBox.Show("Silinecek Kayıt Yok.");
}
finally
{
Form1_Load(sender, e);
}
}
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