取得和顯示交談中的專案
此範例示範如何取得和顯示交談中的郵件專案。
範例
在下列程式代碼範例中，DemoConversation 會取得 MailItem 對象，然後使用 Folder 物件的 Store 屬性來決定 MailItem 物件的存放區。 DemoConversation 接著會檢查 IsConversationEnabled 屬性是否 為 true;如果為 true，則程式代碼範 例會使用GetConversation () 方法來取得 Conversation 物件。 如果 Conversation 物件不是 Null 參考，則此範例會使用 GetTable () 方法，取得包含交談中每個專案的相關聯 Table 物件。
此範例接著會列舉 Table 中的每個專案，並在每個專案上呼叫 EnumerateConversation 來存取每個專案的子節點。 EnumerateConversation 會採用 Conversation 物件，並使用 GetChildren (Object) 方法來取得子節點。 EnumerateConversation 會以遞歸方式呼叫，直到沒有其他子節點為止。 然後會向用戶顯示每個交談專案。
If you use Visual Studio to test this code example, you must first add a reference to the Microsoft Outlook 15.0 Object Library component and specify the Outlook variable when you import the Microsoft.Office.Interop.Outlook namespace. The using statement must not occur directly before the functions in the code example but must be added before the public Class declaration. The following line of code shows how to do the import and assignment in C#.
using Outlook = Microsoft.Office.Interop.Outlook;
void DemoConversation()
{
object selectedItem =
Application.ActiveExplorer().Selection[1];
// For this example, you will work only with
//MailItem. Other item types such as
//MeetingItem and PostItem can participate
//in Conversation.
if (selectedItem is Outlook.MailItem)
{
// Cast selectedItem to MailItem.
Outlook.MailItem mailItem =
selectedItem as Outlook.MailItem; ;
// Determine store of mailItem.
Outlook.Folder folder = mailItem.Parent
as Outlook.Folder;
Outlook.Store store = folder.Store;
if (store.IsConversationEnabled == true)
{
// Obtain a Conversation object.
Outlook.Conversation conv =
mailItem.GetConversation();
// Check for null Conversation.
if (conv != null)
{
// Obtain Table that contains rows
// for each item in Conversation.
Outlook.Table table = conv.GetTable();
Debug.WriteLine("Conversation Items Count: " +
table.GetRowCount().ToString());
Debug.WriteLine("Conversation Items from Table:");
while (!table.EndOfTable)
{
Outlook.Row nextRow = table.GetNextRow();
Debug.WriteLine(nextRow["Subject"]
+ " Modified: "
+ nextRow["LastModificationTime"]);
}
Debug.WriteLine("Conversation Items from Root:");
// Obtain root items and enumerate Conversation.
Outlook.SimpleItems simpleItems
= conv.GetRootItems();
foreach (object item in simpleItems)
{
// In this example, enumerate only MailItem type.
// Other types such as PostItem or MeetingItem
// can appear in Conversation.
if (item is Outlook.MailItem)
{
Outlook.MailItem mail = item
as Outlook.MailItem;
Outlook.Folder inFolder =
mail.Parent as Outlook.Folder;
string msg = mail.Subject
+ " in folder " + inFolder.Name;
Debug.WriteLine(msg);
}
// Call EnumerateConversation
// to access child nodes of root items.
EnumerateConversation(item, conv);
}
}
}
}
}
void EnumerateConversation(object item,
Outlook.Conversation conversation)
{
Outlook.SimpleItems items =
conversation.GetChildren(item);
if (items.Count > 0)
{
foreach (object myItem in items)
{
// In this example, enumerate only MailItem type.
// Other types such as PostItem or MeetingItem
// can appear in Conversation.
if (myItem is Outlook.MailItem)
{
Outlook.MailItem mailItem =
myItem as Outlook.MailItem;
Outlook.Folder inFolder =
mailItem.Parent as Outlook.Folder;
string msg = mailItem.Subject
+ " in folder " + inFolder.Name;
Debug.WriteLine(msg);
}
// Continue recursion.
EnumerateConversation(myItem, conversation);
}
}
}