public void Dispose()
{
if (DataState != null)
{
DataState.Dispose();
}
DataState = null;
GC.SuppressFinalize(this);
}
public TFlexCelDataSource(string dtName, VirtualDataTable aData, TRelationshipList ExtraRelations, TRelationshipList StaticRelations,
TBand MasterBand, string Sort, IDataTableFinder TableFinder)
{
SplitLink = null;
TBand band = MasterBand;
TMasterDetailLinkList MasterDetailLinkList = new TMasterDetailLinkList();
while (band != null)
{
if (band.DataSource != null)
{
TRelation RelToMaster = band.DataSource.Data.GetRelationWith(aData);
if (RelToMaster != null)
{
MasterDetailLinkList.AddRelation(band.DataSource.DataState, RelToMaster);
}
//Create the splitlink.
TMasterSplitDataTableState SplitMaster = band.DataSource.DataState as TMasterSplitDataTableState;
if (SplitMaster != null && String.Equals(SplitMaster.DetailName, dtName, StringComparison.CurrentCultureIgnoreCase))
{
if (SplitLink != null)
{
FlxMessages.ThrowException(FlxErr.ErrSplitNeedsOnlyOneMaster, dtName, SplitMaster.TableName, SplitLink.ParentDataSource.TableName);
}
SplitLink = new TSplitLink(SplitMaster, SplitMaster.SplitCount);
}
AddExtraRelationships(TableFinder, aData, ExtraRelations, band, MasterDetailLinkList);
AddExtraRelationships(TableFinder, aData, StaticRelations, band, MasterDetailLinkList);
}
band = band.MasterBand;
}
MasterDetailLinks = MasterDetailLinkList.ToArray();
Data = aData;
DataState = aData.CreateState(Sort, MasterDetailLinks, SplitLink);
DataState.FTableName = dtName;
FName = dtName;
}
public void AddRelation(VirtualDataTableState aParentDataSource, TRelation Relation)
{
int[] Pc = Relation.ParentColumns;
int[] Cc = Relation.ChildColumns;
if (Pc == null && Cc == null) //Intrinsic relationship
{
Add(new TMasterDetailLink(aParentDataSource, 0, null));
return;
}
if (Pc.Length != Cc.Length)
{
return; //Invalid relation.
}
for (int i = 0; i < Pc.Length; i++)
{
string ChildName = Relation.ChildTable.GetColumnName(Cc[i]);
if (!Find(ChildName))
{
Add(new TMasterDetailLink(aParentDataSource, Pc[i], ChildName));
}
}
}
public TTopDataTableState(VirtualDataTable aTableData, int aTopCount, VirtualDataTableState aActualDataState) : base(aTableData)
{
ActualDataState = aActualDataState;
TopCount = aTopCount;
}
/// <summary>
/// Create a new TSplitLink with the given values.
/// </summary>
/// <param name="aParentDataSource">See <see cref="ParentDataSource"/></param>
/// <param name="aSplitCount">See <see cref="SplitCount"/></param>
public TSplitLink(VirtualDataTableState aParentDataSource, int aSplitCount)
{
FParentDataSource = aParentDataSource;
FSplitCount = aSplitCount;
}
/// <summary>
/// Creates a new instance of TMasterDetailLink with the given values.
/// </summary>
/// <param name="aParentDataSource">See <see cref="ParentDataSource"/></param>
/// <param name="aParentField">See <see cref="ParentField"/></param>
/// <param name="aChildFieldName">See <see cref="ChildFieldName"/></param>
public TMasterDetailLink(VirtualDataTableState aParentDataSource, int aParentField, string aChildFieldName)
{
FParentDataSource = aParentDataSource;
FParentField = aParentField;
FChildFieldName = aChildFieldName;
}