private void addDonGia(DonGia m)
{
try
{
bool kq = DonGiaDB.add(m);
if (kq)
{
loadData();
ClearInput();
}
else
{
MessageBox.Show("Them ko thanh cong");
}
}
catch (Exception e)
{
if (e.Message.Contains("UNIQUE"))
{
MessageBox.Show("Mã tuyến đi đã tồn tại.");
}
else
{
MessageBox.Show("Khong the thuc hien duoc: " + e.Message);
}
}
}
private void btnUpdate_Click(object sender, EventArgs e)
{
if (!isInputValid())
{
return;
}
string maDonGia = txtMaDonGia.Text.Trim();
string maTuyenDi = txtMaTuyenDi.Text.Trim();
Decimal gia = Convert.ToDecimal(txtGia.Text.Trim());
DialogResult result = MessageBox.Show("Ban co muon cap nhat " + maDonGia, "Cap nhat thong tin ", MessageBoxButtons.YesNo);
if (result != DialogResult.Yes)
{
return;
}
DonGia m = new DonGia(maDonGia, maTuyenDi, gia);
bool ketQua = DonGiaDB.update(m);
// thong bao
if (ketQua)
{
MessageBox.Show("Cap nhat thanh cong");
}
else
{
MessageBox.Show("Cap nhat ko thanh cong");
}
list = DonGiaDB.getAll();
gridView.DataSource = null;
gridView.DataSource = list;
}
private void Display(DonGia c)
{
txtMaDonGia.Text = c.MaDonGia;
txtMaTuyenDi.Text = c.MaTuyenDi;
txtGia.Text = c.Gia.ToString();
setEditMode(true);
}
public bool update(DonGia c)
{
String sql = "update DonGia set maTuyenDi = @maTuyenDi, gia = @gia where maDonGia = @maDonGia";
SqlParameter p1 = new SqlParameter("@maDonGia", c.MaDonGia);
SqlParameter p2 = new SqlParameter("@maTuyenDi", c.MaTuyenDi);
SqlParameter p3 = new SqlParameter("@gia", c.Gia);
SqlParameter[] param = { p1, p2, p3 };
return(manager.executeUpdate(sql, param));
}
private void btnAdd_Click(object sender, EventArgs e)
{
string maDonGia = txtMaDonGia.Text.Trim();
string maTuyenDi = txtMaTuyenDi.Text.Trim();
Decimal gia = Convert.ToDecimal(txtGia.Text.Trim());
DonGia m = new DonGia(maDonGia, maTuyenDi, gia);
list.Add(m);
gridView.DataSource = null;
gridView.DataSource = list;
addDonGia(m);
}
private void gridView_CellClick(object sender, DataGridViewCellEventArgs e)
{
int row = e.RowIndex;
if (row < 0 || row >= list.Count)
{
return;
}
DonGia c = list[row];
Display(c);
}
public bool add(DonGia c)
{
try
{
String sql = "insert into DonGia values(@maDonGia, @maTuyenDi, @gia)";
SqlParameter p1 = new SqlParameter("@maDonGia", c.MaDonGia);
SqlParameter p2 = new SqlParameter("@maTuyenDi", c.MaTuyenDi);
SqlParameter p3 = new SqlParameter("@gia", c.Gia);
SqlParameter[] param = { p1, p2, p3 };
return(manager.executeUpdate(sql, param));
}
catch (Exception e)
{
return(false);
}
}
public List <DonGia> getAll()
{
String sql = "select * from DonGia";
DataTable table = manager.executeQuery(sql);
List <DonGia> list = new List <DonGia>();
for (int i = 0; i < table.Rows.Count; i++)
{
DataRow row = table.Rows[i];
string maDonGia = (string)row["maDonGia"];
string maTuyenDi = (string)row["maTuyenDi"];
Decimal gia = Convert.ToDecimal(row["gia"]);
DonGia c = new DonGia(maDonGia, maTuyenDi, gia);
list.Add(c);
}
return(list);
}