where is csharp source code is used sharepoint [closed]

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please provide the csharp area in sharepoint. what are the part csharp source is used. how can be document l开发者_开发知识库oaded in the sharepoint. whether it can be done through by c sharp.

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Almost everything on SP is built into assemblies, so you can't see the C# source. You can use a tool like Reflector to disassemble these assemblies (but they could be obfuscated).

If you want to upload documents through C# have a look at the WebServices. Here's a pretty good tutorial.