/// <summary>更新会员余额。</summary>
/// <param name="memberid">会员卡号</param>
public void UpdateBalance(string memberid)
{
decimal dSumDeposit = Deposit.GetTotalMoneyForMember(memberid);
decimal dSumPays = Pays.GetTotalPayForMember(memberid, 1, 0, 0, 0);
decimal dResult = dSumDeposit - dSumPays;
string strSql = "update member set mbalance=" + dResult + " where mid='" + memberid + "'";
new SQLHelper().ExecuteSql(strSql);
}
