下面EX pression返回一个接触 - 几十个属性的整个接触。这是好的，但是，理想情况下，我想回报是联系人的ID（contact.contactId）唯一的财产。如何做到这一点？

  VAR assocOrg = Contacts.Where（X =＆GT; x.ContactTypeID == 2及和放大器; x.OrganizationName ==XYZ公司）;
 

解决方案

  VAR的结果= Contacts.Where（X =＆GT; ...）
                     。选择（X =＆GT; x.ContactID）;
 

或

  VAR的结果=从X通讯录
             其中x.ContactTypeID == 2＆安培;＆安培; x.OrganizationName ==XYZ公司
             选择x.ContactID;
 

The following expression returns a contact - the whole contact with dozens of properties. This is fine but, ideally, I'd like the return to be the contact's id (contact.contactId) property only. How do I do this?

var assocOrg = Contacts.Where(x => x.ContactTypeID == 2 && x.OrganizationName == "COMPANY XYZ");

var result = Contacts.Where(x => ...)
                     .Select(x => x.ContactID);

or

var result = from x in Contacts
             where x.ContactTypeID == 2 && x.OrganizationName == "COMPANY XYZ"
             select x.ContactID;