How does C # string convert to generic T?

Example:

t ret = (t) convert.changetype (defaultvaule,typeof(t));
How to initialize:
You have a generic class that contains a variable that is defined by the class itself as a type parameter. Because of the constraints on generic objects, you want this variable to be initialized to its default value.
T data = default (t);

Example: "

1  PublicT getconfigs<t> (stringValuestringdefaultvaule)2         {3t ret = (t) convert.changetype (Defaultvaule,typeof(T));4 5             Try6             {7ret = (T) convert.changetype (configurationmanager.appsettings[value. ToString ()],typeof(T));8             }9             CatchTen             { One             } A             returnret; -}

Console.WriteLine(GetType<Int32>( "123" )); Console.WriteLine(GetType<DateTime>( "2010-10-15" ));Other development reading: http://www.cnblogs.com/arxive/p/6179972.html

How does C # string convert to generic T?