将 AdvancedSearch for Outlook 与 C# Returns 零结果一起使用

Question

我正在尝试在我的收件箱和所有子文件夹中搜索主题行中的给定字符串。我在网上找到了以下代码 (https://www.add-in-express.com/creating-addins-blog/2012/05/31/outlook-search-csharp-vbnet/)，但它 returns 结果为零，这不是预期的结果。

我在 outlook 的视图设置下查看了给定搜索词的过滤器，returns 在 outlook 资源管理器中产生了这个查询：“http://schemas.microsoft.com/mapi/proptag/0x0037001f” LIKE '%Ticket%' 当我将其插入下面的代码时，我同样得到零结果。

当我使用 LINQ 查询这些文件夹时（LINQ 太慢，无法成为真正的解决方案）我可以得到结果，所以我猜我在使用 advancedsearch 时犯了语法错误。很难在网络上找到使用示例。我会感谢任何能帮助我的人。

        private Search RunAdvancedSearch(Outlook._Application OutlookApp, string wordInSubject)
        {
        string advancedSearchTag = "New Search";
        string scope = "Inbox";
        string filter = "\"urn:schemas:mailheader:subject\" LIKE '%"+ wordInSubject +"%'";

        Outlook.Search advancedSearch = null;
        Outlook.MAPIFolder folderInbox = null;
        Outlook.MAPIFolder folderSentMail = null;
        Outlook.NameSpace ns = null;
        try
        {
            ns = OutlookApp.GetNamespace("MAPI");
            folderInbox = ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
            folderSentMail = ns.GetDefaultFolder(
                                           Outlook.OlDefaultFolders.olFolderSentMail);
            scope = "\'" + folderInbox.FolderPath +
                                          "\',\'" + folderSentMail.FolderPath + "\'";
            advancedSearch = OutlookApp.AdvancedSearch(
                                            scope, filter, true, advancedSearchTag);
            System.Diagnostics.Debug.WriteLine(advancedSearch.Results.Count);

        }
        catch (System.Exception ex)
        {
            MessageBox.Show(ex.Message, "An exception is thrown!");
        }
        finally
        {
            if (advancedSearch != null) Marshal.ReleaseComObject(advancedSearch);
            if (folderSentMail != null) Marshal.ReleaseComObject(folderSentMail);
            if (folderInbox != null) Marshal.ReleaseComObject(folderInbox);
            if (ns != null) Marshal.ReleaseComObject(ns);
        }


        return advancedSearch;
    }

Answer 1

您的过滤器运行良好，请使用 Application:

private Search RunAdvancedSearch(Outlook.Application OutlookApp, string wordInSubject)

https://msdn.microsoft.com/en-us/library/office/microsoft.office.interop.outlook.application.aspx

阅读有关在 msdn "Remarks" 中使用 _Application 和 Application 的信息。里面写的很好。

Answer 2

我等待结果的时间不够长。当 AdvancedSearch（在单独的线程中运行）完成时，它会触发一个名为 AdvancedSearchComplete 的事件。为了等待搜索完成，我不得不告诉代码处理事件。

在 RunAdvancedSearch 中，我在尝试中这样做：

Application.AdvancedSearchComplete += Application_AdvancedSearchComplete;

这是全部内容。

    string advancedSearchTag = "MY FOOFOO Search";
    //SEARCH Function
    Search RunAdvancedSearch(Outlook.Application Application, string wordInSubject)
    {
        string scope = "Inbox";
        string filter = "urn:schemas:mailheader:subject LIKE \'%" + wordInSubject + "%\'";
        Outlook.Search advancedSearch = null;
        Outlook.MAPIFolder folderInbox = null;
        Outlook.MAPIFolder folderSentMail = null;
        Outlook.NameSpace ns = null;
        try
        {
            ns = Application.GetNamespace("MAPI");
            folderInbox = ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
            folderSentMail = ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderSentMail);
            scope = "\'" + folderInbox.FolderPath + "\',\'" +
                                                       folderSentMail.FolderPath + "\'";
            advancedSearch = Application.AdvancedSearch(
                                                scope, filter, true, advancedSearchTag);
            Application.AdvancedSearchComplete += Application_AdvancedSearchComplete;
        }
        catch (System.Exception ex)
        {
            MessageBox.Show(ex.Message, "An eexception is thrown");
        }
        finally
        {
            if (advancedSearch != null) Marshal.ReleaseComObject(advancedSearch);
            if (folderSentMail != null) Marshal.ReleaseComObject(folderSentMail);
            if (folderInbox != null) Marshal.ReleaseComObject(folderInbox);
            if (ns != null) Marshal.ReleaseComObject(ns);
        }
        
        return advancedSearch;
    }
    //Handle AdvancedSearchComplete event
    void Application_AdvancedSearchComplete(Outlook.Search SearchObject)
    {
        Outlook.Results advancedSearchResults = null;
        Outlook.MailItem resultItem = null;
        System.Text.StringBuilder strBuilder = null;
        try
        {
            if (SearchObject.Tag == advancedSearchTag)
            {
                advancedSearchResults = SearchObject.Results;
                System.Diagnostics.Debug.WriteLine("Count: " + advancedSearchResults.Count);
                if (advancedSearchResults.Count > 0)
                {
                    strBuilder = new System.Text.StringBuilder();
                    strBuilder.AppendLine("Number of items found: " +
                                            advancedSearchResults.Count.ToString());
                    foreach (MailItem item in advancedSearchResults)
                    {
                        System.Diagnostics.Debug.WriteLine(item.Subject);
                    }
                    for (int i = 1; i <= advancedSearchResults.Count; i++)
                    {
                        resultItem = advancedSearchResults[i] as Outlook.MailItem;
                        if (resultItem != null)
                        {
                            strBuilder.Append("#" + i.ToString());
                            strBuilder.Append(" Subject: " + resultItem.Subject);
                            strBuilder.Append(" \t To: " + resultItem.To);
                            strBuilder.AppendLine(" \t Date: " +
                                                    resultItem.SentOn.ToString());
                            Marshal.ReleaseComObject(resultItem);
                        }
                    }
                    if (strBuilder.Length > 0)
                        System.Diagnostics.Debug.WriteLine(strBuilder.ToString());
                    else
                        System.Diagnostics.Debug.WriteLine(
                                                    "There are no Mail items found.");
                    
                }
                else
                {
                    System.Diagnostics.Debug.WriteLine("There are no items found.");
                }
            }
        }
        catch (System.Exception ex)
        {
            MessageBox.Show(ex.Message, "An exception is occured");
        }
        finally
        {
            if (resultItem != null) Marshal.ReleaseComObject(resultItem);
            if (advancedSearchResults != null)
                Marshal.ReleaseComObject(advancedSearchResults);
        }
    }
  private void btnOutlookSrch_Click(object sender, EventArgs e)
    {
       Outlook.Application OLook = new Outlook.Application();
       RunAdvancedSearch(OLook, "Hello?");
    }

将 AdvancedSearch for Outlook 与 C# Returns 零结果一起使用

Using AdvancedSearch for Outlook with C# Returns Zero Results

c#

search

outlook

advanced-search