XamlType.LookupIsNullable Method
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Returns a value that indicates whether this XamlType represents a nullable type, as per the XAML definition.
protected:
virtual bool LookupIsNullable();protected virtual bool LookupIsNullable();abstract member LookupIsNullable : unit -> bool
override this.LookupIsNullable : unit -> boolProtected Overridable Function LookupIsNullable () As Booleantrue if this XamlType represents a nullable type; otherwise, false.
This method can be invoked by calls to IsNullable.
The default implementation makes a determination based on the CLR core library nullable concept, checked against UnderlyingType. For a null UnderlyingType, it returns true.
Override this method if you want IsNullable to use different logic.
| 製品 | バージョン |
|---|---|
| .NET Framework | 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9, 10 |
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