Convert String to variable contained in string

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I have a situation where I have the name of a variable in a string and would
like to get the value of the variable.

Simple Example:

string varName = "MyClass.intvalue";

would like to get value of MyClass.intvalue.

I tried
int ret = Int32.Parse(varName);
but this fails because it sees that the string doesn't contain a number.

-Gregory McCallum
.

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