NewExpressionRef Method (Expression)
Creates an expression reference of the appropriate type that references the provided local or global expression.
Namespace: Microsoft.CommerceServer.Marketing
Assembly: Microsoft.CommerceServer.Marketing.CrossTierTypes (in Microsoft.CommerceServer.Marketing.CrossTierTypes.dll)
Syntax
'Declaration
Public Function NewExpressionRef ( _
expression As Expression _
) As ExpressionRef
'Usage
Dim instance As ExpressionManager
Dim expression As Expression
Dim returnValue As ExpressionRef
returnValue = instance.NewExpressionRef(expression)
public ExpressionRef NewExpressionRef(
Expression expression
)
public:
ExpressionRef^ NewExpressionRef(
Expression^ expression
)
public function NewExpressionRef(
expression : Expression
) : ExpressionRef
Parameters
- expression
Type: Microsoft.CommerceServer.Marketing..::.Expression
The Expression to be referenced. May not be nullNothingnullptra null reference (Nothing in Visual Basic).
Return Value
Type: Microsoft.CommerceServer.Marketing..::.ExpressionRef
The newly created ExpressionRef.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | expression is nullNothingnullptra null reference (Nothing in Visual Basic). |
| InvalidOperationException | The expression argument is a reference to a global Expression object, but the Expression has not been saved to the database (its identifier value is less than or equal to zero). |
Remarks
If the Expression given by the expression is global and has been saved to persistent storage, then a GlobalExpressionRef has been created.
Permissions
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.