IMPORTANT! Remember that only rules of evaluation type can be used in data filtering, where they are called filters.

Provides rule-based data filtering capabilities to LINQ to Object queries. Uses the plain Evaluator class.

Example

IEnumerable result =
	arrayOfSourceObjects.Filter(typeof(SourceObject), ruleXml);

Returns

IEnumerable whose elements are filtered according to conditions set in the business rule.

Syntax

public static System.Collections.IEnumerable Filter(
	this System.Collections.IEnumerable source,
	Type type,
	string rulesetXml,
	string ruleId = null,
	GetRuleDelegate getRule = null)

Type Parameters

• source, System.Collections.IEnumerable - A sequence of values of the source object's type to filter against the business rule.

Parameters

• type, System.Type - Type of the source object that the rule was created with/for.
• rulesetXml, System.String - This string can contain either a single Rule XML document, a single <rule> node that contains a rule, or a collection of rules called the ruleset.
• ruleId, System.String - If the Rule XML passed in the previous parameter is a ruleset then this nullable parameter contains the ID of the particular rule located inside of that ruleset.
• getRule, CodeEffects.Rule.Core.GetRuleDelegate - This nullable parameter takes a reference to a method that returns string Rule XML by rule ID. Pass this delegate if your rule may potentially reference reusable rules that are not stored in the same XML ruleset.

Provides XML rule-based data filtering capabilities to LINQ to Object queries, and uses the generic evaluator class.

Returns

IEnumerable<TSource> whose elements are filtered according to conditions set in the business rule.

Syntax

public static IEnumerable<TSource> Filter<TSource>(
	this IEnumerable<TSource> source,
	string rulesetXml,
	string ruleId = null,
	GetRuleDelegate getRule = null)

Type Parameters

• source, System.Collections.IEnumerable<TSource> - A sequence of values of TSource type to filter against the business rule.

Parameters

• rulesetXml, System.String - This string can contain either a single Rule XML document, a single <rule> node that contains a rule, or a collection of rules called the ruleset.
• ruleId, System.String - If the Rule XML passed in the previous parameter is a ruleset then this nullable parameter contains the ID of the particular rule located inside of that ruleset.
• getRule, CodeEffects.Rule.Core.GetRuleDelegate - This nullable parameter takes a reference to a method that returns string Rule XML by rule ID. Pass this delegate if your rule may potentially reference reusable rules that are not stored in the same XML ruleset.