/// <summary>
/// Gets the feature at the specified Object ID
/// </summary>
/// <param name="oid">Row index. Zero-based.</param>
/// <param name="table">The feature table containing the schema used to
/// read the row.</param>
/// <returns>The feature row for the given row index</returns>
/// <exception cref="InvalidDbaseFileOperationException">
/// Thrown if this reader is closed (check <see cref="IsOpen"/> before calling),
/// or if the column is an unsupported type.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown if <paramref name="oid"/>
/// < 0 or <paramref name="oid"/> >= <see cref="RecordCount"/></exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="table"/> is
/// null</exception>
/// <exception cref="ObjectDisposedException">Thrown when the method is called and
/// Object has been disposed</exception>
internal IFeatureDataRecord GetAttributes(UInt32 oid, FeatureDataTable <UInt32> table)
{
checkState();
if (!_isOpen)
{
throw new InvalidDbaseFileOperationException("An attempt was made to read " +
"from a closed dBase file");
}
if (oid <= 0 || oid > RecordCount)
{
throw new ArgumentOutOfRangeException("Invalid DataRow requested " +
"at index " + oid);
}
if (_reader.IsRowDeleted(oid)) // is record marked deleted?
{
return(null);
}
if (table != null)
{
FeatureDataRow <UInt32> dr = table.NewRow(oid);
foreach (DbaseField field in Header.Columns)
{
try
{
dr[field.ColumnName] = _reader.GetValue(oid, field);
}
catch (NotSupportedException)
{
String message = String.Format("Column type {0} is not supported.",
field.DataType);
throw new InvalidDbaseFileOperationException(message);
}
}
return(dr);
}
else
{
ShapeFileFeatureDataRecord dr = new ShapeFileFeatureDataRecord(Header.Columns);
dr.SetColumnValue(0, oid);
dr.SetColumnValues(1, 1 + Header.Columns.Count, _reader.GetValues(oid));//jd: added 1 to Header.Columns.Count because we are offsetting the start index by one (OID is stored at zero)
return(dr);
}
}
/// <summary>
/// Gets the feature at the specified Object ID
/// </summary>
/// <param name="oid">Row index. Zero-based.</param>
/// <param name="table">The feature table containing the schema used to
/// read the row.</param>
/// <returns>The feature row for the given row index</returns>
/// <exception cref="InvalidDbaseFileOperationException">
/// Thrown if this reader is closed (check <see cref="IsOpen"/> before calling),
/// or if the column is an unsupported type.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown if <paramref name="oid"/>
/// < 0 or <paramref name="oid"/> >= <see cref="RecordCount"/></exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="table"/> is
/// null</exception>
/// <exception cref="ObjectDisposedException">Thrown when the method is called and
/// Object has been disposed</exception>
internal IFeatureDataRecord GetAttributes(UInt32 oid, FeatureDataTable<UInt32> table)
{
checkState();
if (!_isOpen)
{
throw new InvalidDbaseFileOperationException("An attempt was made to read " +
"from a closed dBase file");
}
if (oid <= 0 || oid > RecordCount)
{
throw new ArgumentOutOfRangeException("Invalid DataRow requested " +
"at index " + oid);
}
if (_reader.IsRowDeleted(oid)) // is record marked deleted?
{
return null;
}
if (table != null)
{
FeatureDataRow<UInt32> dr = table.NewRow(oid);
foreach (DbaseField field in Header.Columns)
{
try
{
dr[field.ColumnName] = _reader.GetValue(oid, field);
}
catch (NotSupportedException)
{
String message = String.Format("Column type {0} is not supported.",
field.DataType);
throw new InvalidDbaseFileOperationException(message);
}
}
return dr;
}
else
{
ShapeFileFeatureDataRecord dr = new ShapeFileFeatureDataRecord(Header.Columns);
dr.SetColumnValue(0, oid);
dr.SetColumnValues(1, 1 + Header.Columns.Count, _reader.GetValues(oid));//jd: added 1 to Header.Columns.Count because we are offsetting the start index by one (OID is stored at zero)
return dr;
}
}
