CODEWITHSUNDEEP
c#xml
AravindK
AravindK

Reputation: 151

How to store and fetch Binary data from XML file using c sharp code

In XML how to store the binary data into the file. and same-way i need to fetch the data. I have tried with some other example codes but i'm not able to store the data. i need more information on XML file and sample code for read and write code for XML. is that best way to store large binary data into the XML file?.

Upvotes: 0

Views: 1298

Answers (1)

Sealad
Sealad

Reputation: 92

Base64 is a good way of doing that. It's a way of making binary data into text that you can save.

Write:

public void WriteBinaryToXElement( XElement element, byte[] data )
    => element.Value = Convert.ToBase64String( data, 0, data.length );

Read:

public byte[] ReadBinaryFromXElement( XElement element )
    => Convert.FromBase64String( element.Value );

How to use:

// load XML
XElement rootNode = XElement.Load( @"Path\to\XML" );

// find nodes
foreach ( var binaryNode in XElement.Element( "DataNodes" ).Elements() )
{
    // read data
    byte[] data = ReadBinaryFromXElement( binaryNode );

    // do stuff with data

    // save back to XML
    WriteBinaryToXElement( binaryNode, data );
}

I'm not quite sure if it's a very good idea to do this though. why not just save the binary data in binary files?

Upvotes: 3

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