private void btnDeleteContracts_Click(object sender, EventArgs e)
        {
            ContractDetail _ContractDetail = new ContractDetail();

            _ContractDetail = CustomerDb.GetContractById(ContractId);
            DialogResult dialogResult = MessageBox.Show(this, "Are you sure you wish to Contract", "Delete Contract", MessageBoxButtons.YesNo, MessageBoxIcon.Information);

            if (dialogResult == DialogResult.Yes)
            {
                CustomerDb.DeleteContract(_ContractDetail);
                BindContracts(CustomerId);
            }
            else if (dialogResult == DialogResult.No)
            {
                //do something else
            }

            BindContracts(CustomerId);
        }