C#Outlook从收件人获取CompanyName属性

Question

我目前正在使用C#编写Outlook 2010 AddIn.我想要的是从我从AppointmentItem拉出的Recipient对象中获取CompanyName属性.因此,拥有AppointmentItem的收件人我想找出每个收件人的CompanyName,它可能是一个ExchangeUser.

我的代码是这样的:

Recipients recipients = appointmentItem.Recipients;
foreach (Recipient rec in recipients)
{
    resolved = rec.Resolve();
    if (resolved)
    {
       ContactItem contactItem = rec.AddressEntry.GetContact();
       String companyName = contactItem.CompanyName;       
       // ...
    }

其中contactItem始终为null.

做这样的事也会导致空指针.

ExchangeUser u = rec.AddressEntry.GetExchangeUser();
companyName = u.CompanyName;

我根本无法获取CompanyName信息.我知道这些信息确实存在.但是,除了CompanyName之外,还有许多其他属性似乎也会产生NULL指针.

有人可以给我一个暗示吗？

提前致谢.

Answer 1

尝试使用下面的代码。为我工作。

代码：

 bool resolved;
        Microsoft.Office.Interop.Outlook.Application olApplication = new Microsoft.Office.Interop.Outlook.Application();

        // get nameSpace and logon.
        Microsoft.Office.Interop.Outlook.NameSpace olNameSpace = olApplication.GetNamespace("mapi");
        olNameSpace.Logon("Outlook", "", false, true);

        // get the Calender items
        Microsoft.Office.Interop.Outlook.MAPIFolder _olCalender = olNameSpace.GetDefaultFolder(Microsoft.Office.Interop.Outlook.OlDefaultFolders.olFolderCalendar);

        // Get the Items (Appointments) collection from the Calendar folder.
        Microsoft.Office.Interop.Outlook.Items oItems = _olCalender.Items;



        foreach (object o in oItems)
        {

            if (o is Microsoft.Office.Interop.Outlook.AppointmentItem)
            {
                Microsoft.Office.Interop.Outlook.Recipients recipients = ((Microsoft.Office.Interop.Outlook.AppointmentItem)o).Recipients;
                foreach (Microsoft.Office.Interop.Outlook.Recipient rec in recipients)
                {
                    resolved = rec.Resolve();
                    if (resolved)
                    {
                        Microsoft.Office.Interop.Outlook.ContactItem contactItem = rec.AddressEntry.GetContact();
                        MessageBox.Show(contactItem.CompanyName);
                    }
                }

            }
        }

希望它能起作用。