C # extract and deserialize dataset objects

Yesterday we talked about dataset serialization and compression. Today we extract and deserializeCodeWrite down:

 

///   <Summary>
/// Deserialization and compression of Dataset
///   </Summary>
///   <Param name = "_ filepath"> </param>
///   <Returns> </returns>
Static Dataset datasetdeserializedecompress ( String _ Filepath)
{
Filestream FS = File. openread (_ filepath ); // Open a file

FS. Position =   0 ; // Set the file stream location

Gzipstream =   New Gzipstream (FS, compressionmode. Decompress ); // Create extract object

Byte [] Buffer =   New   Byte [ 4096 ]; // Define data buffer

Int Offset =   0 ; // Define the read location

Memorystream MS =   New Memorystream (); // Define memory stream

While (Offset = Gzipstream. Read (buffer, 0 , Buffer. Length )) ! =   0 )
{
Ms. Write (buffer, 0 , Offset ); // Decompressed data is written to the memory stream
}

Binaryformatter sfformatter= NewBinaryformatter ();//Define binaryformatter to deserialize the DataSet object

Ms. Position= 0;//Set the memory stream location

Dataset Ds;

Try
{
DS = (Dataset) sfformatter. deserialize (MS ); // Deserialization
}
Catch
{
Throw ;
}
Finally
{
Ms. Close (); // Disable memory stream
Ms. Dispose (); // Release resources
}
FS. Close (); // Close file stream
FS. Dispose (); // Release resources
Gzipstream. Close (); // Close extract stream
Gzipstream. Dispose (); // Release resources
Return DS;
}

///   <Summary>
/// Deserialization of uncompressed Dataset
///   </Summary>
///   <Param name = "_ filepath"> </param>
///   <Returns> </returns>
Static Dataset datasetdeserialize ( String _ Filepath)
{
Filestream FS = File. openread (_ filepath ); // Open a file

FS. Position =   0 ; // Set the file stream location

Binaryformatter sfformatter =   New Binaryformatter (); // Define binaryformatter to deserialize the DataSet object

Dataset Ds;

Try
{
DS = (Dataset) sfformatter. deserialize (FS ); // Deserialization
}
Catch
{
Throw ;
}
Finally
{
FS. Close (); // Disable memory stream
FS. Dispose (); // Release resources
}
FS. Close (); // Close file stream
FS. Dispose (); // Release resources
Return DS;
}