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the compilation of
Dim mySingle As Single = “”
is ok, but at runtime it throw an exception: Conversion from string “” to type ‘Single’ is not valid.
How could it be possible?
Thanks
Strings aren’tSingles.It compiles because you don’t have
Option Strict.Without
Option Strict On(either at the top of the file or preferably in project properties), all type-checking happens at runtime; there is no compile time type-safety.You should ALWAYS use
Option Strict.