大家早上好,
我正在尝试使用“包含”来查看对象是否在集合中。当我休息时,我可以看到该对象确实是集合的一部分,但是“包含”似乎返回 false,表明该项目不在集合中。知道我做错了什么吗?
if(HttpContext.Current.Session["AutoPayTypes"] != null)
{
var autopays = HttpContext.Current.Session["AutoPayTypes"] as List<PaymentTypeInfo>;
char? coverageProductLine = null;
if(entityProps.ContainsKey("CoverageProductLine"))
{
coverageProductLine = (char?)entityProps["CoverageProductLine"];
}
var paymentTypeInfoRepository = new PaymentTypeInfoRepository();
var payType = paymentTypeInfoRepository.GetPaymentTypeInfo(paymentAdd.PayType,
coverageProductLine);
if (autopays != null && payType != null)
paymentAdd.DaysPaid = autopays.Contains(payType) ? null : paymentAdd.DaysPaid;
}
如果对象不在集合中,则“DaysPaid”需要为空。有任何想法吗?
***UPDATE PaymentTypeInfo 是一个标准的 LinqToSql 生成类。此时,Equals 和 GetHashCode 均已被覆盖。这是它的来源。
[Table(Name="dbo.S_OptPaymentType")]
public partial class PaymentTypeInfo
{
private string _PaymentId;
private string _PaymentCode;
private System.Nullable<char> _CoverageType;
private string _ActionCode;
private System.Nullable<char> _PaymentType;
private string _BenAction;
private System.Nullable<char> _BenPremDisFlag;
private string _APNextToLastAct;
private string _APLastAct;
public PaymentTypeInfo()
{
}
[Column(Storage="_PaymentId", DbType="Char(3) NOT NULL", CanBeNull=false)]
public string PaymentId
{
get
{
return this._PaymentId;
}
set
{
if ((this._PaymentId != value))
{
this._PaymentId = value;
}
}
}
[Column(Storage="_PaymentCode", DbType="Char(2) NOT NULL", CanBeNull=false)]
public string PaymentCode
{
get
{
return this._PaymentCode;
}
set
{
if ((this._PaymentCode != value))
{
this._PaymentCode = value;
}
}
}
[Column(Storage="_CoverageType", DbType="Char(1)")]
public System.Nullable<char> CoverageType
{
get
{
return this._CoverageType;
}
set
{
if ((this._CoverageType != value))
{
this._CoverageType = value;
}
}
}
[Column(Storage="_ActionCode", DbType="VarChar(3)")]
public string ActionCode
{
get
{
return this._ActionCode;
}
set
{
if ((this._ActionCode != value))
{
this._ActionCode = value;
}
}
}
[Column(Name="PaymentType", Storage="_PaymentType", DbType="Char(1)")]
public System.Nullable<char> PaymentType
{
get
{
return this._PaymentType;
}
set
{
if ((this._PaymentType != value))
{
this._PaymentType = value;
}
}
}
[Column(Storage="_BenAction", DbType="VarChar(3)")]
public string BenAction
{
get
{
return this._BenAction;
}
set
{
if ((this._BenAction != value))
{
this._BenAction = value;
}
}
}
[Column(Storage="_BenPremDisFlag", DbType="Char(1)")]
public System.Nullable<char> BenPremDisFlag
{
get
{
return this._BenPremDisFlag;
}
set
{
if ((this._BenPremDisFlag != value))
{
this._BenPremDisFlag = value;
}
}
}
[Column(Storage="_APNextToLastAct", DbType="VarChar(3)")]
public string APNextToLastAct
{
get
{
return this._APNextToLastAct;
}
set
{
if ((this._APNextToLastAct != value))
{
this._APNextToLastAct = value;
}
}
}
[Column(Storage="_APLastAct", DbType="VarChar(3)")]
public string APLastAct
{
get
{
return this._APLastAct;
}
set
{
if ((this._APLastAct != value))
{
this._APLastAct = value;
}
}
}
}
谢谢,~ck 在圣地亚哥