如何在Outlook 2010中獲得最新的聯繫人圖片？

Question

這裏的問題是：

1. 使用Attachment.SaveAsFile（）來保存聯繫人的圖片在磁盤上（成功）
2. 手動更改Outlook聯繫人的圖片。
3. 重複步驟1，但我得到了老照片，而不是新的步驟2.

編輯： 我已經知道如何保存聯繫人的圖片在磁盤上。 問題是，我得到的圖片不是最新的。 這裏是代碼：

//[Outlook] is short for [Microsoft.Office.Interop.Outlook] 
     Outlook.Application outlook = new Outlook.Application(); 
     Outlook.MAPIFolder folder = outlook.GetNamespace("MAPI").GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts); 
     foreach (var item in folder.Items) { 
      if (item is Outlook.ContactItem) { 
       Outlook.ContactItem contact = null; 
       Outlook.Attachments atts = null; 
       Outlook.Attachment att = null; 
       string path = ""; 

       contact = item as Outlook.ContactItem; 

       if (!contact.HasPicture) { continue; } 

       path = @"C:\Temp\" + contact.EntryID + ".jpg"; 
       atts = contact.Attachments; 
       att = atts["ContactPicture.jpg"]; 

       if(File.Exists(path)){ 
        File.Delete(path); 
       } 

       att.SaveAsFile(@"C:\Temp\" + contact.EntryID + ".jpg"); 

       Marshal.ReleaseComObject(att); 
       att = null; 
       Marshal.ReleaseComObject(atts); 
       atts = null; 
       Marshal.ReleaseComObject(contact); 
       contact = null; 
      } 
     } 

謝謝！

Answer 1

我找到Contact picture retrieved via PIA doesn't change when updated in Outlook

分辨率沒釋放folder.Items

下面是修改代碼：

//[Outlook] is short for [Microsoft.Office.Interop.Outlook] 
     Outlook.Application outlook = new Outlook.Application(); 
     Outlook.MAPIFolder folder = outlook.GetNamespace("MAPI").GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts); 
     Outlook.Items items = null; 
     items = folder.Items; 
     foreach (var item in items) { 
      if (item is Outlook.ContactItem) { 
       Outlook.ContactItem contact = null; 
       Outlook.Attachments atts = null; 
       Outlook.Attachment att = null; 
       string path = ""; 

       contact = item as Outlook.ContactItem; 

       if (!contact.HasPicture) { continue; } 

       path = @"C:\Temp\" + contact.EntryID + ".jpg"; 
       atts = contact.Attachments; 
       att = atts["ContactPicture.jpg"]; 

       if (File.Exists(path)) { 
        File.Delete(path); 
       } 

       att.SaveAsFile(@"C:\Temp\" + contact.EntryID + ".jpg"); 

       Marshal.ReleaseComObject(att); 
       att = null; 
       Marshal.ReleaseComObject(atts); 
       atts = null; 
       Marshal.ReleaseComObject(contact); 
       contact = null; 
      } 
     } 

     if (items != null) { 
      Marshal.ReleaseComObject(items); 
      items = null; 
     } 

編輯：

發生問題與上面的代碼。有時它得到了舊圖片。 我在最後添加了GC.Collect();，然後運行良好。

所以我試了下面的代碼。但問題依然存在。

//[Outlook] is short for [Microsoft.Office.Interop.Outlook] 
     Outlook.Application outlook = new Outlook.Application(); 
     Outlook.MAPIFolder folder = outlook.GetNamespace("MAPI").GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts); 
     Outlook.Items items = folder.Items; 

     foreach (var item in items) { 
      if (item is Outlook.ContactItem) { 
       Outlook.ContactItem contact = item as Outlook.ContactItem; 
       string path = ""; 
       Outlook.Attachment att = null; 

       if (!contact.HasPicture) { continue; } 

       path = @"C:\Temp\" + contact.EntryID + ".jpg"; 
       att = contact.Attachments["ContactPicture.jpg"]; 

       if (File.Exists(path)) { 
        File.Delete(path); 
       } 

       att.SaveAsFile(@"C:\Temp\" + contact.EntryID + ".jpg"); 
      } 
     } 

     GC.Collect(); 

最後我使用下面的代碼。釋放所有com對象，然後調用GC.Collect（）。

//[Outlook] is short for [Microsoft.Office.Interop.Outlook] 
     Outlook.Application outlook = new Outlook.Application(); 
     Outlook.MAPIFolder folder = outlook.GetNamespace("MAPI").GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts); 
     Outlook.Items items = folder.Items; 

     foreach (var item in items) { 
      if (item is Outlook.ContactItem) { 
       Outlook.ContactItem contact = null; 
       Outlook.Attachments atts = null; 
       Outlook.Attachment att = null; 
       string path = ""; 

       contact = item as Outlook.ContactItem; 

       if (!contact.HasPicture) { continue; } 

       path = @"C:\Temp\" + contact.EntryID + ".jpg"; 
       atts = contact.Attachments; 
       att = atts["ContactPicture.jpg"]; 

       if (File.Exists(path)) { 
        File.Delete(path); 
       } 

       att.SaveAsFile(@"C:\Temp\" + contact.EntryID + ".jpg"); 

       Marshal.ReleaseComObject(att); 
       att = null; 
       Marshal.ReleaseComObject(atts); 
       atts = null; 
       Marshal.ReleaseComObject(contact); 
       contact = null; 
      } 
     } 

     if (items != null) { 
      Marshal.ReleaseComObject(items); 
      items = null; 
     } 

     Marshal.ReleaseComObject(folder); 
     folder = null; 

     Marshal.ReleaseComObject(outlook); 
     outlook = null; 

     GC.Collect();