XamlType.LookupIsNullable Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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 -> bool
Protected Overridable Function LookupIsNullable () As Boolean
Returns
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
Váš názor
https://aka.ms/ContentUserFeedback.
Připravujeme: V průběhu roku 2024 budeme postupně vyřazovat problémy z GitHub coby mechanismus zpětné vazby pro obsah a nahrazovat ho novým systémem zpětné vazby. Další informace naleznete v tématu:Odeslat a zobrazit názory pro