我有一个Windows窗体应用程序，其中我有多个表的视图。通过按对象的属性设置列的名称，然后将它们添加到数据集，可以动态构建表。还为每个表添加了一个空行。我遇到的问题是，在用于创建这些表的9个对象中，有2个表未设置任何列或空行。
我已经查看了调试，并将获取列的对象属性与没有列的对象进行了比较，并且无法解释问题所在。以前有没有人遇到过这个问题？如果是这样，问题是什么？
这是我的代码，请告诉我是否还需要其他信息：
protected override DataSet GetDefaultFilterTypes()
{
return DataSetUtility.ToDataSet(new List<Type> { typeof(Counterparty), typeof(Address), typeof(Contact),
typeof(Customer), typeof(Broker), typeof(ExchangeBroker), typeof(ExchangeBrokerAccount), typeof(Supplier), typeof(SupplierTerminalPriceMapping) });
}
public static DataSet ToDataSet(IList<Type> list)
{
DataSet ds = new DataSet();
foreach (Type item in list)
{
DataTable ta = new DataTable(item.ToString());
ds.Tables.Add(ta);
//add a column to table for each public property on T
foreach (var propInfo in item.GetProperties())
{
Type colType = Nullable.GetUnderlyingType(propInfo.PropertyType) ?? propInfo.PropertyType;
ta.Columns.Add(propInfo.Name, colType);
}
DataRow row = ta.NewRow();
foreach (var propInfo in item.GetProperties())
{
row[propInfo.Name] = DBNull.Value;
}
ta.Rows.Add(row);
}
return ds;
}
这里是ExchangeBroker和Supplier的类定义 - 没有获取列的对象：
public partial class Supplier : MomentumEntityBase
{
#region *** Properties
[DataMember(Order = 1, IsRequired = true)]
[Key,Required]
[GreaterThanZero]
public int SupplierId
{
get { return _supplierId; }
set
{
if (Equals(value, _supplierId)) return;
_supplierId = value;
NotifyPropertyChanged("SupplierId");
}
}
private int _supplierId;
[DataMember(Order = 2, IsRequired = true)]
[Required(AllowEmptyStrings = false),StringLength(64)]
public string CreationName
{
get { return _creationName; }
set
{
if (Equals(value, _creationName)) return;
_creationName = value;
NotifyPropertyChanged("CreationName");
}
}
private string _creationName;
[DataMember(Order = 3, IsRequired = true)]
[Required]
public DateTime CreationDate
{
get { return _creationDate; }
set
{
if (Equals(value, _creationDate)) return;
_creationDate = value;
NotifyPropertyChanged("CreationDate");
}
}
private DateTime _creationDate;
[DataMember(Order = 4, IsRequired = false)]
[StringLength(64)]
public string RevisionName
{
get { return _revisionName; }
set
{
if (Equals(value, _revisionName)) return;
_revisionName = value;
NotifyPropertyChanged("RevisionName");
}
}
private string _revisionName;
[DataMember(Order = 5, IsRequired = false)]
public DateTime? RevisionDate
{
get { return _revisionDate; }
set
{
if (Equals(value, _revisionDate)) return;
_revisionDate = value;
NotifyPropertyChanged("RevisionDate");
}
}
private DateTime? _revisionDate;
#endregion
#region *** Reverse Navigation
#endregion
#region *** Foreign Keys
// Foreign keys
public Counterparty Counterparty
{
get { return _counterparty; }
set
{
if (Equals(value, _counterparty)) return;
_counterparty = value;
CounterpartyChangeTracker = _counterparty == null ? null : new ChangeTrackingCollection<Counterparty> { _counterparty };
NotifyPropertyChanged("Counterparty");
}
}
private Counterparty _counterparty;
private ChangeTrackingCollection<Counterparty> CounterpartyChangeTracker { get; set; }
#endregion
#region *** CTOR / Initialize
public Supplier()
{
InitializePartial();
}
partial void InitializePartial();
#endregion
#region *** Error
public override string Error
{
get
{
var error = new StringBuilder();
if (TrackingState != TrackableEntities.TrackingState.Deleted)
{
if (!string.IsNullOrEmpty(base.Error))
{
error.AppendLine(base.Error);
}
}
return error.ToString();
}
}
#endregion
}
[DataContract]
public enum ExchangeBrokerColumns
{
[EnumMember]
ExchangeBrokerId = 0,
[EnumMember]
CreationName = 1,
[EnumMember]
CreationDate = 2,
[EnumMember]
RevisionName = 3,
[EnumMember]
RevisionDate = 4
}
// ExchangeBroker
//[DataContract]
[GeneratedCodeAttribute("EF.Reverse.POCO.Generator", "2.17.1.0")]
public partial class ExchangeBroker : MomentumEntityBase
{
#region *** Properties
[DataMember(Order = 1, IsRequired = true)]
[Key,Required]
[GreaterThanZero]
public int ExchangeBrokerId
{
get { return _exchangeBrokerId; }
set
{
if (Equals(value, _exchangeBrokerId)) return;
_exchangeBrokerId = value;
NotifyPropertyChanged("ExchangeBrokerId");
}
}
private int _exchangeBrokerId;
[DataMember(Order = 2, IsRequired = true)]
[Required(AllowEmptyStrings = false),StringLength(64)]
public string CreationName
{
get { return _creationName; }
set
{
if (Equals(value, _creationName)) return;
_creationName = value;
NotifyPropertyChanged("CreationName");
}
}
private string _creationName;
[DataMember(Order = 3, IsRequired = true)]
[Required]
public DateTime CreationDate
{
get { return _creationDate; }
set
{
if (Equals(value, _creationDate)) return;
_creationDate = value;
NotifyPropertyChanged("CreationDate");
}
}
private DateTime _creationDate;
[DataMember(Order = 4, IsRequired = false)]
[StringLength(64)]
public string RevisionName
{
get { return _revisionName; }
set
{
if (Equals(value, _revisionName)) return;
_revisionName = value;
NotifyPropertyChanged("RevisionName");
}
}
private string _revisionName;
[DataMember(Order = 5, IsRequired = false)]
public DateTime? RevisionDate
{
get { return _revisionDate; }
set
{
if (Equals(value, _revisionDate)) return;
_revisionDate = value;
NotifyPropertyChanged("RevisionDate");
}
}
private DateTime? _revisionDate;
#endregion
#region *** Reverse Navigation
// Reverse navigation
public ChangeTrackingCollection<ExchangeBrokerAccount> ExchangeBrokerAccounts
{
get { return _exchangeBrokerAccounts; }
set
{
if (Equals(value, _exchangeBrokerAccounts)) return;
_exchangeBrokerAccounts = value;
//NotifyPropertyChanged("ExchangeBrokerAccounts");
}
}
private ChangeTrackingCollection<ExchangeBrokerAccount> _exchangeBrokerAccounts;
#endregion
#region *** Foreign Keys
// Foreign keys
public Counterparty Counterparty
{
get { return _counterparty; }
set
{
if (Equals(value, _counterparty)) return;
_counterparty = value;
CounterpartyChangeTracker = _counterparty == null ? null : new ChangeTrackingCollection<Counterparty> { _counterparty };
NotifyPropertyChanged("Counterparty");
}
}
private Counterparty _counterparty;
private ChangeTrackingCollection<Counterparty> CounterpartyChangeTracker { get; set; }
#endregion
#region *** CTOR / Initialize
public ExchangeBroker()
{
ExchangeBrokerAccounts = new ChangeTrackingCollection<ExchangeBrokerAccount>();
InitializePartial();
}
partial void InitializePartial();
#endregion
#region *** Error
public override string Error
{
get
{
var error = new StringBuilder();
if (TrackingState != TrackableEntities.TrackingState.Deleted)
{
if (!string.IsNullOrEmpty(base.Error))
{
error.AppendLine(base.Error);
}
if (ExchangeBrokerAccounts.HasError())
{
error.AppendLine("ExchangeBrokerAccounts contains validation error(s).");
}
}
return error.ToString();
}
}
#endregion
}