private void txtIDNV_TextChanged(object sender, TextChangedEventArgs e)
{
if (txtIDNV.Text != "")
{
NhanVien nv = new NhanVien();
var nv1 = nv.LayNV(txtIDNV.Text);
if (nv1 != null)
{
txtIDNV.Text = nv1.manv;
txtTenNV.Text = nv1.tennv;
txtCMNDNV.Text = nv1.cmnd;
txtDiaChi.Text = nv1.diachi;
txtGioiTinh.Text = nv1.gioitinh;
txtNgSinh.Text = nv1.ngaysinh.Value.Date.ToString("dd/MM/yyyy");
txtSDT.Text = nv1.sdt;
}
}
}