XamlType.LookupIsNullable Method
Definition
Important
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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 BooleanReturns
true if this XamlType represents a nullable type; otherwise, false.
Remarks
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.
Applies to
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