public int QueryValues(IRowBuffer row)
{
try
{
if (m_currentOGRFeature == null)
{
return(-1);
}
// loop and only set values in the rowbuffer
// that were requested from the fieldMap
int count = m_esriQueryFieldMap.GetLength(0);
for (int i = 0; i < count; i++)
{
int esriFieldIndex = (int)m_esriQueryFieldMap.GetValue(i);
// have to skip 1) objectid and 2) geometry field or we will get an ESRI
// exception. Also have to skip anything that the query map is asking to ignore
if (esriFieldIndex == -1 ||
esriFieldIndex == m_pDataset.get_OIDFieldIndex(0) ||
esriFieldIndex == m_pDataset.get_ShapeFieldIndex(0))
{
continue;
}
try
{
IField valField = m_pDataset.get_Fields(0).get_Field(i);
object val = m_pDataset.get_mapped_value(m_currentOGRFeature, i);
row.set_Value(i, val);
}
catch (Exception ex)
{
// skip values that fail to be set but continue doing it anyway
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
return(m_currentOGRFeature.GetFID());
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(-1);
}
}
public int QueryValues(IRowBuffer row)
{
try
{
if (m_currentOGRFeature == null)
{
return(-1);
}
// Loop and only set values in the rowbuffer
// that were requested by ArcGIS.
//
// Ignore the ArcObjects documentation because it says I should use the field map
// and that is straight out incorrect. Only copy values if the fieldmap has any value
// besides -1. Othewise, ignore whatever map it is asking to copy to and simply copy
// to the right field.
IFields pFields = m_pDataset.get_Fields(0);
int fieldCount = pFields.FieldCount;
for (int i = 0; i < fieldCount; i++)
{
int esriFieldIndex = (int)m_esriQueryFieldMap.GetValue(i);
if (esriFieldIndex == -1 ||
i == m_pDataset.get_OIDFieldIndex(0) ||
i == m_pDataset.get_ShapeFieldIndex(0))
{
continue;
}
IField pField = pFields.get_Field(i);
object val = null;
// DANGER - POTENTIAL BUG - Workaround. For some reason, in ArcGIS 10.1SP1 I am
// getting fields that should not be editable passed in to map into!!!?!? I am
// skipping those here. In theory, since we are the DataSource provider, we should be able to
// use a lower level set value that skips polymorphic behavior and hence allows
// the write to happen even in non-editable fields. Something analogous to
// ITableWrite::WriteRow, but for Rows. We don't have that, so I skip those values for those
// rows.
if (!pFields.get_Field(i).Editable)
{
continue;
}
try
{
val = m_pDataset.get_mapped_value(m_currentOGRFeature, i);
row.set_Value(i, val);
}
catch (Exception ex)
{
// skip values that fail to be set but continue doing it anyway
string msg = String.Format("OGRFID:[{0}] esriFieldName:[{1}] esriFieldIndex:[{2}] esriValue:[{3}] Exception:[{4}]",
m_currentOGRFeature.GetFID(),
pField.Name,
esriFieldIndex,
val != null ? val.ToString() : "<not set>",
ex.Message);
System.Diagnostics.Debug.WriteLine(msg);
}
}
return(m_currentOGRFeature.GetFID());
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(-1);
}
}
