public override void BeginRead()
{
try
{
IUniversalVectorDataReader udr = VectorDataReaderFactory.GetUniversalDataReader(_fileUrl);
_reader = udr as IVectorFeatureDataReader;
_reader.SetArgsOfLeveling(_argOfLeveling);
_readIsFinished = false;
}
finally
{
if (GlobalCacher.VectorDataGlobalCacher != null &&
GlobalCacher.VectorDataGlobalCacher.IsEnabled &&
GlobalCacher.VectorDataGlobalCacher.IsGllPrjOfActiveViewer)
{
GlobalCacher.VectorDataGlobalCacher.Request(_fileUrl);
}
}
}
private bool ResFieldIsOK(out IVectorFeatureDataReader vdr)
{
vdr = null;
IUniversalVectorDataReader udr = VectorDataReaderFactory.GetUniversalDataReader(_shapefile);
if (udr == null)
{
return(false);
}
vdr = udr as IVectorFeatureDataReader;
string[] fields = vdr.Fields;
if (fields == null || fields.Length == 0)
{
return(false);
}
for (int i = 0; i < fields.Length; i++)
{
fields[i] = fields[i].ToUpper();
}
foreach (FieldMap map in _fieldMaps)
{
if (map.ResField.FieldName.ToUpper() == "SHAPE.X")
{
continue;
}
if (map.ResField.FieldName.ToUpper() == "SHAPE.Y")
{
continue;
}
if (Array.IndexOf(fields, map.ResField.FieldName.ToUpper()) < 0)
{
return(false);
}
}
return(true);
}
