Initializes a target reference type using the specified function if it has not already been
initialized.
Namespace:
System.Threading
Assembly:
System.Threading (in System.Threading.dll)
Syntax
Visual Basic (Declaration) |
---|
Public Shared Function EnsureInitialized(Of T As Class) ( _
ByRef target As T, _
valueFactory As Func(Of T) _
) As T |
C# |
---|
public static T EnsureInitialized<T>(
ref T target,
Func<T> valueFactory
)
where T : class
|
Parameters
- target
- Type:
T
%
The reference of type T to initialize if it has not
already been initialized.
- valueFactory
- Type: System..::.Func<(Of <(T>)>)
The Func<(Of <(T>)>) invoked to initialize the
reference.
Type Parameters
- T
- The reference type of the reference to be initialized.
Return Value
The initialized reference of type
T.
Remarks
Exceptions
Exception | Condition |
---|
System..::.MissingMemberException | Type T does not have a
default constructor. |
System..::.InvalidOperationException | valueFactory returned
null. |
See Also