Encoding and decoding a file to base64 . RSS

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  SameerKulkar...

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  Encoding and decoding a file to base64 .

  May 07, 2012 07:30 AM|LINK

  Hi guys,

  I have this situation.

  XML has file content in base64 encoded string format and i know the file extenstion

  <file_extension>.pdf</file_extension>

  <file_content>base64_encoded_string</file_content>

  Now I have to convert this content and save it according to file extension..

  Please help me . .

  thanks in advance. .

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  Sameer Kulkarni.
  Programmer Analyst @ mnop.in
  My blog - http://geekospace.com/
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  ignatandrei

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 07:35 AM|LINK

  http://msdn.microsoft.com/en-us/library/system.convert.frombase64string.aspx

  My .NET blog : http://msprogrammer.serviciipeweb.ro/ |2012 Programmer tools
  • Edited by SameerKulkarni on May 07, 2012 07:57 AM
  • Edited by SameerKulkarni on May 07, 2012 09:42 AM
  • Marked as answer by mamba dai - msft on May 14, 2012 06:35 AM
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  SameerKulkar...

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 09:44 AM|LINK

  Hi, 

  I am getting error in - // Convert the Base64 UUEncoded input into binary output.

  error  - "Invalid character in a Base-64 string."

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  Sameer Kulkarni.
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  My blog - http://geekospace.com/
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  ignatandrei

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 10:55 AM|LINK

  SameerKulkarni

  error  - "Invalid character in a Base-64 string."

  then maybe it is not base 64... I have tested many times the encoder / decoder with success...

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  bhaskar.mule

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 11:00 AM|LINK

  XmlDocument doc = new XmlDocument();
              doc.Load(Server.MapPath("~/Xmlfile/XMLFile.xml"));
              strXML = doc.OuterXml;
  
    byte[] cartBytes = System.Text.Encoding.Default.GetBytes(strXML);
              strEncoded = Convert.ToBase64String(cartBytes);

  Bhaskar.Mule
  Site:Rare technical solutions
  • Edited by bhaskar.mule on May 07, 2012 11:02 AM
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  SameerKulkar...

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 11:40 AM|LINK

  ignatandrei i am using same link given by you and i am passing a pdf file which has some images and texts...

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  Sameer Kulkarni.
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  SameerKulkar...

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 11:48 AM|LINK

  ignatandrei your link worked but I am having some decoding problems. New pdf file gor created and its currupeted/damaged.

  Its not opening. . .How do I debug this ??

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  Sameer Kulkarni.
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  ignatandrei

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  Re: Encoding and decoding a file to base64 .

  May 07, 2012 12:36 PM|LINK

  SameerKulkarni

  How do I debug this ??

  Speak with the people that gave you the base 64 encoding and tell to provide you the pdf. Then compare the decoding with the original

  My .NET blog : http://msprogrammer.serviciipeweb.ro/ |2012 Programmer tools
  • Marked as answer by mamba dai - msft on May 14, 2012 06:35 AM