如何检查可以应用于Outlook中的mailItem的所有规则

Question

我正在编写一个必须获取可与规则匹配的项目的应用程序。

//new messages goes here
void items_ItemAdd(object Item)
    {
        //all rules
        Rules rules = Application.Session.DefaultStore.GetRules();

        Outlook.MailItem mail = (Outlook.MailItem)Item;

        if (mail != null)
        {
            // I need to find out if mail matches with one of the rule. And handle in an appropriate way.
        }
    }

Answer 1

通过为每个MailItem手动枚举Rule Conditions（和excluding rule exceptions ）来检查哪些规则适用于哪些规则的唯一方法。规则引擎通过执行您通过Rule.Execute定义的每个规则来工作 - 它不提供预览受影响项目的机制。

以下是（未经测试的）示例，供您参考如何匹配包含主题规则（olConditionSubject）。您还需要处理other Rule Conditions types。

if (mail != null)
{
    foreach (Outlook.Rule rule in rules)
    {
       foreach (Outlook.RuleCondition condition in rule.Conditions)
       {
         if (condition is TextRuleCondition)
         {
            Outlook.TextRuleCondition trc = condition as Outlook.TextRuleCondition;
            if (trc.ConditionType == Outlook.OlRuleConditionType.olConditionSubject)
            {
              // TODO: handle Rule.Exceptions conditions
              bool containsSubject = mail.Subject.Contains(trc.Text);
            }
         }
       }
    }
}