public override DataSet Clone()
{
PlacementSet cln = ((PlacementSet)(base.Clone()));
cln.InitVars();
return(cln);
}
/// <summary>
/// Constructs a well formed Document Object Model for a group of placements on a block order.
/// </summary>
/// <param name="BlockOrderId">The block order for which we want a placement document.</param>
public PlacementDocument(int blockOrderId, PlacementSet placementSet)
{
// Create the root element for the document.
XmlElement rootElement = this.CreateElement("Placements");
this.AppendChild(rootElement);
// This list is used to sort the placements.
ArrayList placementsList = new ArrayList();
// Sort the placements in the order which they were created.
DataView dataView = new DataView(placementSet.Placement, null, "placementId", DataViewRowState.CurrentRows);
// Copy the placements that belong to the currently viewed block order (remember that incomplete rows belonging to
// other blocks can still hang around in the PlacementSet until committed) into the document.
foreach (DataRowView dataRowView in dataView)
{
PlacementSet.PlacementRow placementRow = (PlacementSet.PlacementRow)dataRowView.Row;
if (placementRow.BlockOrderId == blockOrderId && !placementRow.IsPlacementIdNull())
{
rootElement.AppendChild(this.CreatePlacementElement(placementRow));
}
}
// The temporary records are placed at the end. This appears to be the more logical placement for the records in the
// situation where an incomplete record was left in the viewer. That is, it will most likely be the most recent record
// in the list. But because there's no global identifier, it can't be sorted by the order it was inserted in the
// global tables. So an assumption is made that, since it's the most reccent, it should be placed at the end of the
// list.
foreach (PlacementSet.PlacementRow placementRow in placementSet.Placement)
{
if (placementRow.BlockOrderId == blockOrderId && placementRow.IsPlacementIdNull())
{
rootElement.AppendChild(this.CreatePlacementElement(placementRow));
}
}
// The placeholder is a queue for the document manager to create a new placement.
this.DocumentElement.AppendChild(this.CreatePlaceholderElement());
}