What is the meaning of XML tags "see "and "seealso" in C# in Visual Studio 2010?

Both are XML documentation tags that are compiler verified.

<see> is for placing links directly in the text.

<seealso> is to place text in the "See Also" section.

See how they are used in this example.

See and SeeAlso turn into references to other classes in the generated documentation, according to the .NET xml documentation standard.

Please read http://msdn.microsoft.com/en-us/library/5ast78ax.aspx for more information about tags available.

Note that in addition to that, Sandcaslte also supports on subclasses, copying in the documentation from the base class.