/// <summary>
/// 获得数据库中的所有外部参照，无论加载与否。
/// </summary>
/// <returns>id, 路径</returns>
public static Dictionary <ObjectId, string> GetAllXref(Database db, GetXrefType xrefType)
{
Dictionary <ObjectId, string> xrefArr = new Dictionary <ObjectId, string>();
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = trans.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
foreach (ObjectId btrId in bt)
{
BlockTableRecord btr = trans.GetObject(btrId, OpenMode.ForRead) as BlockTableRecord;
if (btr.IsFromExternalReference)
{
if (btr.IsFromOverlayReference)
{
if (xrefType == GetXrefType.Overlay || xrefType == GetXrefType.All)
{
xrefArr.Add(btrId, btr.PathName);
}
}
else
{
if (xrefType == GetXrefType.Attach || xrefType == GetXrefType.All)
{
xrefArr.Add(btrId, btr.PathName);
}
}
}
}
}
return(xrefArr);
}
public static Dictionary <string, ObjectId> GetAllXrefExt(Database db, GetXrefType xrefType)
{
Dictionary <string, ObjectId> xrefArr = new Dictionary <string, ObjectId>();
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = trans.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
foreach (ObjectId btrId in bt)
{
BlockTableRecord btr = trans.GetObject(btrId, OpenMode.ForRead) as BlockTableRecord;
if (btr.IsFromExternalReference)
{
if (btr.IsFromOverlayReference)
{
if (xrefType == GetXrefType.Overlay || xrefType == GetXrefType.All)
{
xrefArr.Add(btr.PathName.ToLower(), btrId);
}
}
else
{
if (xrefType == GetXrefType.Attach || xrefType == GetXrefType.All)
{
xrefArr.Add(btr.PathName.ToLower(), btrId);
}
}
}
foreach (ObjectId id in btr)
{
Entity ent = trans.GetObject(id, OpenMode.ForRead) as Entity;
if (ent is RasterImage)
{
RasterImage image = ent as RasterImage;
xrefArr.Add(image.Path.ToLower(), id);
}
#if !ACAD2008
if (ent is PdfReference)
{
PdfReference pdf = ent as PdfReference;
xrefArr.Add(pdf.Path.ToLower(), id);
}
#endif
}
}
}
return(xrefArr);
}