Class MacroField

Wrapper for any macro data field (source).

public class MacroField : MacroExtension

Extension Methods: DataExtensions.With<T>(T, Action<T>)

QueryExtensions.AsLiteral<T>(T)

QueryExtensions.AsValue<T>(T, bool)

Constructors

Creates new instance with value evaluator which needs a context.

public MacroField(string name, Func<EvaluationContext, object> valueEvaluator, Func<EvaluationContext, bool> availabilityCondition = null)

name string: Name of the field
valueEvaluator Func<EvaluationContext, object>: Value evaluation function which needs context
availabilityCondition Func<EvaluationContext, bool>: Availability condition

Creates new instance with value evaluator which does not need a context.

public MacroField(string name, Func<object> valueEvaluator, Func<EvaluationContext, bool> availabilityCondition = null)

name string: Name of the field
valueEvaluator Func<object>: Value evaluation function which does not need evaluation context
availabilityCondition Func<EvaluationContext, bool>: Availability condition

Returns the value of the field in the given evaluation context.

public object GetValue(EvaluationContext context)

context EvaluationContext: Evaluation context under which to evaluate the field value

Returns true if the field is available in the given context.

public bool IsFieldAvailable(EvaluationContext context)

context EvaluationContext: Evaluation context in which the field is being requested