A First Look at Dynamic Typing
Starting with C# 4.0, late-bound access to members is also available through dynamic typing. In such a case, the compiler has no idea about the existence of the selected members. This kind of behavior is desirable in various scenarios:
• Objects may be totally typeless because they come from some dynamic language like Ruby or Python.
• Data representations may not have a schema, like with XML documents with no corresponding XSD schema.
• You received some object back using the static System.Object type but have no more specific type in reach to cast it to.
Historically, interacting with “loosely typed” objects from ...
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