TryCast - VB.Net
If this conversion is not possible a Nothing value is returned.
This is a type of conversion operator that does not throw an exception.
Dim x As String
x = TryCast(y, String)
If you try to do a coversion with DirectCast or CType and it fails an InvalidCastException is thrown.
Instead of generating an exception this operator return Nothing
This operator can only be used with reference types
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