显示错误的开销
本文关键字:开销 错误 显示 | 更新日期: 2023-09-27 17:51:22
我的目标是在网页上显示为期一天的会议的成本,这是$50.00。然而,我总是得到0美元的回报。我在SQL中测试了SELECT语句,它正在检索正确的数据。现在我已经缩小了问题在我的if...else if
语句在PayBackCC方法,但我不确定。它应该从变量cOneDCost
中得到代价。如有任何帮助,不胜感激。
protected void PayBackInfo()
{
try
{
con.Open();
SqlCommand PBCredit = new SqlCommand("SELECT * FROM PaymentInfo, ConferenceReg WHERE PaymentInfoID=PaymentInfoIDNum AND PaymentInfoID=@payID AND ConferenceReg.Deleted='N' AND ConferenceIDNum=@confID", con);
PBCredit.Parameters.AddWithValue("@confID", confID);
PBCredit.Parameters.AddWithValue("@payID", Request.QueryString["payID"]);
SqlDataReader readerPB = PBCredit.ExecuteReader();
while (readerPB.Read())
{
piID = readerPB["PaymentInfoID"].ToString();
cID = readerPB["ConferenceIDNum"].ToString();
poID = readerPB["PurchaseOrder"].ToString();
partnersNum = readerPB["PartnersIDNum"].ToString();
cFullCost = Convert.ToDecimal(readerPB["ConferenceFullFee"]).ToString("#,##0.00");
cOneDCost = Convert.ToDecimal(readerPB["ConferenceOneDayFee"]).ToString("#,##0.00");
partnersCost = Convert.ToDecimal(readerPB["PartnersFee"]).ToString("#,##0.00");
PayBackCC();
}
readerPB.Close();
}
finally
{
con.Close();
}
}
private void PayBackCC()
{
if (!partnersNum.Equals("null") || !partnersNum.Equals("0"))
{
msgLbl.Text = "$" + partnersCost;
}
else if (!cFullCost.Equals("0"))
{
msgLbl.Text = "$" + cFullCost;
}
else if (!cOneDCost.Equals("0"))
{
msgLbl.Text = "$" + cOneDCost;
}
}
请更改
if (!partnersNum.Equals("null") || !partnersNum.Equals("0"))
if (!String.IsNullOrEmpty(partnersNum) || !partnersNum.Equals("0"))
除非你期望从你的查询