Beginning Visual C# 2015 Programming by unknow

Author:unknow
Language: eng
Format: epub
ISBN: 9781119096559
Publisher: Wiley
Published: 2015-10-12T00:00:00+00:00

NOTE

Unusually, the dynamic type exists only at compile time; at runtime the System.Object type is used instead. This is a minor implementation detail but one that is worth remembering, as it might clarify some of the discussion that follows.

Once you have a dynamic variable, you can proceed to access its members (the code to obtain a value for the variable is not shown here):

myDynamicVar.DoSomething("With this!");

Regardless of the value that myDynamicVar contains, this code will compile. However, if the requested member does not exist, you will get an exception when this code is executed, of type RuntimeBinderException.

In effect, what you are doing with code like this is providing a “recipe” that should be applied at runtime. The value of myDynamicVar will be examined, and a method called DoSomething() with a single string parameter will be located and called at the point where it is required.

This is best illustrated with an example.

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