Note
This function will assign evaluated expression values to properties in an existing model.
Gemstone Expressions Library
Value
Generates a delegate that will update an instance of type T applying any
specified UpdateValueExpressionAttribute instances that are declared on the type
T properties. Target T instance is accepted
as the parameter to the returned delegate ActionT.
Definition
Namespace: Gemstone.Expressions.Model
Assembly: Gemstone.Expressions (in Gemstone.Expressions.dll) Version: 1.0.128 -- Release Build+cfed08c7efcabf54b006110ecd862a6bfcb7b819
Generated delegate that will update T instances with update expression values applied.
Assembly: Gemstone.Expressions (in Gemstone.Expressions.dll) Version: 1.0.128 -- Release Build+cfed08c7efcabf54b006110ecd862a6bfcb7b819
C#
public static Action<T> UpdateInstance(
IEnumerable<PropertyInfo>? properties = null,
TypeRegistry? typeRegistry = null
)VB
Public Shared Function UpdateInstance (
Optional properties As IEnumerable(Of PropertyInfo) = Nothing,
Optional typeRegistry As TypeRegistry = Nothing
) As Action(Of T)C++
public:
static Action<T>^ UpdateInstance(
IEnumerable<PropertyInfo^>^ properties = nullptr,
TypeRegistry^ typeRegistry = nullptr
)JavaScript
Gemstone.Expressions.Model.ValueExpressionParser.UpdateInstance = function(properties, typeRegistry);Parameters
- properties IEnumerablePropertyInfo (Optional)
- Specific properties to target, or null to target all properties.
- typeRegistry TypeRegistry (Optional)
- Type registry to use when parsing UpdateValueExpressionAttribute instances, or null to use DefaultTypeRegistry.
Return Value
ActionTGenerated delegate that will update T instances with update expression values applied.
Remarks
This function is useful for generating a delegate to a compiled function that will update
objects of type T where properties of the type of have been decorated
with UpdateValueExpressionAttribute attributes. The updated object will automatically
have applied any defined update values as specified by the encountered attributes.