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void ListBoxDoldur()
{
con = new SqlConnection();
//con.ConnectionString = "server=.; Database=Hastane; Trusted_Connection=true;"; //Windows Authentication
con.ConnectionString = "server=.; Database=Hastane; uid=sa; pwd=1234"; //SQL Server Authentication
try
{
con.Open();
//MessageBox.Show(con.State.ToString());
//KOMUTLAR......
/*
SqlCommand
Veritabanına sorgu göndermemizi sağlayan sınıftır, başlıca metotları;
ExecuteScalar() : Gönderilen sorgudan tek bir kayıt geliyorsa ExecuteScalar() obje olarak dönen tek kaydı tutar.
ExecuteNonQuery() : Sorgu olmayan komutları (insert, update, delete) parametre yollayarak çalıştırmamızı sağlayan sınıftır.
ExecuteReader() : Birden çok datayı DataReader sınıfı ile okumamızı sağlayan metottur.
*/
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "SELECT * FROM Il";
cmd.Connection = con;
//SqlCommand cmd2 = new SqlCommand("SELECT * FROM Il", con);
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
lstSehirler.Items.Add(dr["IlAdi"]);
}
dr.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (con.State != ConnectionState.Closed)
con.Close();
//MessageBox.Show(con.State.ToString());
}
}
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