Change a dynamic's type in a ternary conditional statement

Question

In C#, the type dynamic allows you to change a variable\'s type at runtime, for example:

dynamic x = \"foo\";
x = 42;

Another exam

Answer 1

The type of the conditional operator is determined regardless of the surrounding expression. In other words it really doesn't matter what is before =, (true) ? "foo" : 42; is illegal.

The solution is to cast the types of the operands instead:

dynamic x = (true) ? (dynamic) "foo" : (dynamic)  42;

You can cast just one of them if you wish.

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One other thing, the operator's name is "the conditional operator", not "ternary operator", even if it is the only ternary operator in C#.