private void btnTimKhachHang_Click(object sender, EventArgs e)
{
BULKhachHang bulKH = new BULKhachHang();
if (txtKhachHang.Text == "")
{
dgvKhachHang.DataSource = bulKH.layTatCaKhachHang();
}
else
{
dgvKhachHang.DataSource = bulKH.layTatCaKhachHang(txtKhachHang.Text);
}
}
public void loadKhachHang()
{
BULKhachHang bulKH = new BULKhachHang();
dgvKhachHang.DataSource = bulKH.layTatCaKhachHang();
dgvKhachHang.Columns[0].HeaderText = "Mã khách hàng";
dgvKhachHang.Columns[1].HeaderText = "Tên khách hàng";
dgvKhachHang.Columns[2].HeaderText = "Địa chỉ";
dgvKhachHang.Columns[3].HeaderText = "Số điện thoại";
}
private void txtMaKhachHang_TextChanged(object sender, EventArgs e)
{
BULKhachHang = new BULKhachHang();
foreach (KhachHang x in BULKhachHang.layTatCaKhachHang())
{
if (x.MaKhachHang == txtMaKhachHang.Text)
{
txtTenKhachHang.Text = x.HoTen;
}
}
}
private KhachHang tonTaiKhachHang(string text)
{
foreach (KhachHang x in bulKH.layTatCaKhachHang())
{
if (x.MaKhachHang == text)
{
return(x);
}
}
return(null);
}
private bool tonTaiMa(string text)
{
foreach (KhachHang x in bulKH.layTatCaKhachHang())
{
if (x.MaKhachHang == text)
{
return(true);
}
}
return(false);
}