image as base64Binary or byte in XML and save it in VarBinary(max) column in db

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C#3.0

C#

Hi ,
I want to save an image in column varbinary(max) in db from XML file.

1. what datatype should i use for image in XML( base64Binary or byte).
2. and how to save it in DB into column VarBinary (Max).

Thanks and regard,
Abhishek.