private void btnxoa_Click(object sender, EventArgs e)
{
NGONNGU inf = new NGONNGU();
inf.ngonngu1 = dgvngonngu.SelectedRows[0].Cells[0].Value.ToString();
data.xoaNgonNgu(inf);
dgvngonngu.DataSource = data.loadNgonNgu();
MessageBox.Show("Đã xóa!");
}
public void xoaNgonNgu(NGONNGU inf)
{
var temp = data.NGONNGUs.Find(inf.ngonngu1);
if (temp != null)
{
data.NGONNGUs.Remove(temp);
data.SaveChanges();
}
}
public void suaNgonNgu(NGONNGU bef, NGONNGU aft)
{
SqlCommand sql = new SqlCommand();
sql.CommandText = "update NGONNGU set ngonngu = @nn where ngonngu = @nn1";
sql.CommandType = CommandType.Text;
sql.Parameters.AddWithValue("@nn", aft.ngonngu1);
sql.Parameters.AddWithValue("@nn1", bef.ngonngu1);
sql.Connection = DataProvider.con;
sql.ExecuteNonQuery();
}
private void btnthem_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtngonngu.Text))
return;
NGONNGU inf = new NGONNGU();
inf.ngonngu1 = txtngonngu.Text;
data.themNgonNgu(inf);
txtngonngu.Clear();
MessageBox.Show("Đã thêm!");
dgvngonngu.DataSource = data.loadNgonNgu();
}
public void themNgonNgu(NGONNGU inf)
{
data.NGONNGUs.Add(inf);
data.SaveChanges();
}
public void xoaNgonNgu(NGONNGU inf)
{
data.xoaNgonNgu(inf);
}
public void themNgonNgu(NGONNGU inf)
{
data.themNgonNgu(inf);
}
public void suaNgonNgu(NGONNGU bef, NGONNGU aft)
{
data.suaNgonNgu(bef, aft);
}
