private void TextBoxes_TextChanged(object sender, EventArgs e) { TextBox tb; if (sender is TextBox) { tb = (TextBox)sender; if (tb == txtSoLuong) { //xử lý khi user xóa hết if (string.IsNullOrEmpty(txtSoLuong.Text)) { this.SoLuong = 0; } lblThanhTien.Text = string.Format("{0:0,0.00}đ", epKimPres.ThanhTien_ThPh()); lblGiaTB.Text = string.Format("{0:0,0.00}đ", epKimPres.GiaTB_ThPh()); } } }
private void CapNhatLabelGia() { lblThanhTien.Text = string.Format("{0:0,0.00}đ", epKimPres.ThanhTien_ThPh()); lblGiaTB.Text = string.Format("{0:0,0.00}đ/{1}", epKimPres.GiaTB_ThPh(), this.DonViTinh); }