DomainObjectExtensionsGetReferenceOrDefaultTObject, TResult Method

Gets the backing reference of the member, specified in the expression. The expression should be in the format 's => s.Member'.

Namespace: Aloe.SystemFrameworks.Domain.Extensions
Assembly: Aloe.SystemFrameworks.Domain (in Aloe.SystemFrameworks.Domain.dll) Version: 20.1.3.5

Syntax

C++

Copy

public static ObjectReference GetReferenceOrDefault<TObject, TResult>(
	this TObject obj,
	Expression<Func<TObject, TResult>> memberExpression
)
where TObject : DomainObject

<ExtensionAttribute>
Public Shared Function GetReferenceOrDefault(Of TObject As DomainObject, TResult) ( 
	obj As TObject,
	memberExpression As Expression(Of Func(Of TObject, TResult))
) As ObjectReference

public:
[ExtensionAttribute]
generic<typename TObject, typename TResult>
where TObject : DomainObject
static ObjectReference^ GetReferenceOrDefault(
	TObject obj, 
	Expression<Func<TObject, TResult>^>^ memberExpression
)

[<ExtensionAttribute>]
static member GetReferenceOrDefault : 
        obj : 'TObject * 
        memberExpression : Expression<Func<'TObject, 'TResult>> -> ObjectReference  when 'TObject : DomainObject

Parameters

obj: Type: TObject
The object.
memberExpression: Type: System.Linq.ExpressionsExpressionFuncTObject, TResult
The member expression. It should contain only a single member reference.

Type Parameters

TObject: The type of the object.
TResult: The type of the result.

Return Value

Type: ObjectReference
The backing reference of the member, specified in the expression. Returns null if the reference was not found or the expression was not properly formatted.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type . When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

DomainObjectExtensions Class