private void button17_Click(object sender, EventArgs e) { if (listView5.SelectedItems.Count == 0) { return; } string[] sil; sil = listView5.SelectedItems[0].Text.Trim().Split(','); if (this.listView5.SelectedItems[0].Selected) { SqlConnection connection = new SqlConnection(ClsDatabase.data_base()); SqlCommand command = new SqlCommand("delete from Degiskenler where ID='" + sil[0] + "'", connection); connection.Open(); command.ExecuteNonQuery(); connection.Close(); listView5.SelectedItems[0].Remove(); } }