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Returns a value that indicates whether the notification has a value.
Namespace: System.Reactive
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
Public MustOverride ReadOnly Property HasValue As Boolean
Get
'Usage
Dim instance As Notification
Dim value As Boolean
value = instance.HasValue
public abstract bool HasValue { get; }
public:
virtual property bool HasValue {
bool get () abstract;
}
abstract HasValue : bool
abstract function get HasValue () : boolean
Property Value
Type: System.Boolean
true if notification has a value; otherwise, false.