RuleExpressionWalker.Evaluate(RuleExecution, CodeExpression) 方法

定义

命名空间:

System.Workflow.Activities.Rules

程序集:

System.Workflow.Activities.dll

计算表达式和所有子表达式。

public:
 static System::Workflow::Activities::Rules::RuleExpressionResult ^ Evaluate(System::Workflow::Activities::Rules::RuleExecution ^ execution, System::CodeDom::CodeExpression ^ expression);

public static System.Workflow.Activities.Rules.RuleExpressionResult Evaluate (System.Workflow.Activities.Rules.RuleExecution execution, System.CodeDom.CodeExpression expression);

static member Evaluate : System.Workflow.Activities.Rules.RuleExecution * System.CodeDom.CodeExpression -> System.Workflow.Activities.Rules.RuleExpressionResult

Public Shared Function Evaluate (execution As RuleExecution, expression As CodeExpression) As RuleExpressionResult

参数

execution

RuleExecution

要执行表达式的 RuleExecution。

expression

CodeExpression

要计算的 CodeExpression。

返回

RuleExpressionResult

指示表达式计算结果的 RuleExpressionResult。

例外

ArgumentNullException

execution 为空引用（在 Visual Basic 中为 Nothing）。