public static string GetGuaranteeCode()
{
BuyGuaranteeDT guaranteeDT = new BuyGuaranteeDT();
string mmyy = getMMyy();
DataTable invoiceTable = guaranteeDT.GetByCond("Code like 'BH" + mmyy + "%'", " Code DESC");
string prefix = "BH" + mmyy;
string suffix = "0001";
if (invoiceTable != null && invoiceTable.Rows.Count > 0)
{
suffix = getSuffix(invoiceTable.Rows[0]["Code"].ToString());
}
return(prefix + suffix);
}