Explanation Casting and Conversion - What is the difference in simple words

What is the differences between Casting and Conversion operation in C#. Please explanation in simple way for beginners.

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Resources: http://msdn.microsoft.com/en-us/library/ms173105%28v=VS.100%29.aspx

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Casting is an attempt to change the type of a variable without changing the representation (so casting an int to a long doesn't change the underlying structure).

Converting is changing the type and the internal representation (converting a string to an integer - very different internal representations).

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You have different type of conversion, casting is one of them.

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To cast is to temporarily treat one type as another type where as to convert is to permanently change it.