Class BiffRecordFactory

This class contains information about all known biff records. Used for registering the biff record type, creating new biff records and extracting them from a stream.

Inheritance

System.Object

BiffRecordFactory

Namespace: Syncfusion.XlsIO.Parser

Assembly: Syncfusion.XlsIO.Portable.dll

Syntax

public class BiffRecordFactory : Object

Constructors

BiffRecordFactory()

Declaration

public BiffRecordFactory()

Methods

ExtractRecordType(BinaryReader)

Extracts from the BinaryReader type of the next record.

Declaration

public static int ExtractRecordType(BinaryReader reader)

Parameters

Type	Name	Description
System.IO.BinaryReader	reader	BinaryReader that contains record to extract.

Returns

Type	Description
System.Int32	Type of the next record in the BinaryReader.

Exceptions

Type	Condition
System.ArgumentNullException	When reader is null.
System.ApplicationException	When code of the extracted record is zero.

ExtractRecordType(Stream)

Extract from stream Next Record type.

Declaration

public static int ExtractRecordType(Stream stream)

Parameters

Type	Name	Description
System.IO.Stream	stream	Stream that contains record to extract.

Returns

Type	Description
System.Int32	Extracted record.

GetRecord(DataProvider, Int32, ExcelVersion)

Extracts record from array of bytes.

Declaration

public static BiffRecordRaw GetRecord(DataProvider provider, int iOffset, ExcelVersion version)

Parameters

Type	Name	Description
DataProvider	provider	Object that provides access to the data.
System.Int32	iOffset	Offset to the record's start.
ExcelVersion	version	Excel version used for infill.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record.

GetRecord(TBIFFRecord)

Create empty record by specified type.

Declaration

public static BiffRecordRaw GetRecord(TBIFFRecord type)

Parameters

Type	Name	Description
TBIFFRecord	type	Type of the record that should be created.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Created record if succeeded, null otherwise.

GetRecord(TBIFFRecord, BinaryReader, Byte[])

Extracts specified record from the reader.

Declaration

public static BiffRecordRaw GetRecord(TBIFFRecord type, BinaryReader reader, byte[] arrBuffer)

Parameters

Type	Name	Description
TBIFFRecord	type	Type of the record to be extracted.
System.IO.BinaryReader	reader	Reader that contains record.
System.Byte[]	arrBuffer	Temporary buffer needed for some operations.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record.

Exceptions

Type	Condition
System.ArgumentNullException	When specified reader is null.

GetRecord(Int32)

Create empty record by specified type.

Declaration

public static BiffRecordRaw GetRecord(int type)

Parameters

Type	Name	Description
System.Int32	type	Type of the record that should be created.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Created record if succeeded, null otherwise.

GetRecord(Int32, BinaryReader, DataProvider, IDecryptor, Byte[])

Extracts specified record from the reader

Declaration

public static BiffRecordRaw GetRecord(int type, BinaryReader reader, DataProvider provider, IDecryptor decryptor, byte[] arrBuffer)

Parameters

Type	Name	Description
System.Int32	type	Type of the record to be extracted
System.IO.BinaryReader	reader	Reader that contains record
DataProvider	provider	Object that provider access to the record data.
IDecryptor	decryptor	Decryptor used to parse encrypted records. This argument can be null when no decryption is required.
System.Byte[]	arrBuffer	Temporary buffer needed for some operations.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record

Exceptions

Type	Condition
System.ArgumentNullException	When specified reader is null

GetRecord(Int32, BinaryReader, Byte[])

Extracts specified record from the reader.

Declaration

public static BiffRecordRaw GetRecord(int type, BinaryReader reader, byte[] arrBuffer)

Parameters

Type	Name	Description
System.Int32	type	Type of the record to be extracted.
System.IO.BinaryReader	reader	Reader that contains record.
System.Byte[]	arrBuffer	Temporary buffer needed for some operations.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record.

Exceptions

Type	Condition
System.ArgumentNullException	When specified reader is null.

GetRecord(BinaryReader, DataProvider, IDecryptor, Byte[])

Extracts record from the BinaryReader.

Declaration

public static BiffRecordRaw GetRecord(BinaryReader reader, DataProvider provider, IDecryptor decryptor, byte[] arrBuffer)

Parameters

Type	Name	Description
System.IO.BinaryReader	reader	BinaryReader that contains record to extract.
DataProvider	provider	Object that provides access to the data.
IDecryptor	decryptor	Object used to decrypt encrypted records.
System.Byte[]	arrBuffer	Temporary buffer needed for some operations.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record.

GetRecord(BinaryReader, DataProvider, Byte[])

Extracts record from the BinaryReader.

Declaration

public static BiffRecordRaw GetRecord(BinaryReader reader, DataProvider provider, byte[] arrBuffer)

Parameters

Type	Name	Description
System.IO.BinaryReader	reader	BinaryReader that contains record to extract.
DataProvider	provider	Object that provides access to the data.
System.Byte[]	arrBuffer	Temporary buffer needed for some operations.

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted record.

GetUntypedRecord(BinaryReader)

Extracts unknown record from the stream

Declaration

public static BiffRecordRaw GetUntypedRecord(BinaryReader reader)

Parameters

Type	Name	Description
System.IO.BinaryReader	reader	Reader that contains record

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted unknown record

GetUntypedRecord(Stream)

Extracts unknown record from the stream

Declaration

public static BiffRecordRaw GetUntypedRecord(Stream stream)

Parameters

Type	Name	Description
System.IO.Stream	stream	Stream that contains needed record

Returns

Type	Description
Syncfusion.XlsIO.Parser.Biff_Records.BiffRecordRaw	Extracted unknown record