#1,198 – Using Operators with Nullable Types

When using a nullable type, you can use the operators with the nullable type that are associated with the underlying value type.

The example below shows how we can use the < and > operators with the int? type.  They work as they would work with the int type itself, for non-null values.

            int? val1 = 5;
            int? val2 = 10;

            bool b1 = val1 < val2;   // True

If one of the two values is null, the expression will evaluate to false, regardless of the other value.

            val2 = null;
            b1 = val1 < val2;    // False
            b1 = val2 < val1;    // False
            b1 = val1 == val2;   // False
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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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