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 assigning values
from TypeConvertedValueExpressionAttribute instances that are declared on the
type T properties to the property values. 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> UpdateProperties(
IEnumerable<PropertyInfo>? properties = null,
TypeRegistry? typeRegistry = null
)VB
Public Shared Function UpdateProperties (
Optional properties As IEnumerable(Of PropertyInfo) = Nothing,
Optional typeRegistry As TypeRegistry = Nothing
) As Action(Of T)C++
public:
static Action<T>^ UpdateProperties(
IEnumerable<PropertyInfo^>^ properties = nullptr,
TypeRegistry^ typeRegistry = nullptr
)JavaScript
Gemstone.Expressions.Model.ValueExpressionParser.UpdateProperties = 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 TypeConvertedValueExpressionAttribute 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
TypeConvertedValueExpressionAttribute attributes. The updated object will automatically
have applied any defined update values as specified by the encountered attributes.
This method is the inverse call for UpdateExpressions(IEnumerablePropertyInfo, TypeRegistry). Internally the method simply calls UpdateInstanceForTypeTValueExpressionAttribute(IEnumerablePropertyInfo, TypeRegistry) for type TypeConvertedValueExpressionAttribute.