Question

The following returns

Type of conditional expression cannot be determined because there is no implicit conversion between ‘double’ and ‘<null>’

aNullableDouble = (double.TryParse(aString, out aDouble) ? aDouble : null) 

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The reason why I can’t just use aNullableBool instead of the roundtrip with aDouble is because aNullableDouble is a property of a generated EntityFramework class which cannot be used as an out par.

Answer 1

aNullableDouble = double.TryParse(aString, out aDouble) ? (double?)aDouble : null;