如何獲得一個月的所有發票並將它們全部保存爲使用QBFC13和C＃的PDF？

Question

我正在製作一個應用程序，獲取所有發票一個月，然後將每個發票保存爲PDF，我從未使用QuickBooks開發過，因此我對此知之甚少。有人能夠給我任何源代碼，做這個或類似的東西來建立我的？我發現，我認爲都指向我朝着正確的方向一對夫婦的聯繫，但我不是100％地肯定：

How can I get the invoices that has been paid on an specific date from QuickBooks to .NET app?

https://intuitdeveloper.lc.intuit.com/questions/1382278-sample-net-code-for-quickbooks-api-oauth-call-to-create-an-invoice-and-pdf-or-any-api-call-if-no-invoice

https://intuitdeveloper.lc.intuit.com/questions/1060982-quickbooks-online-api-invoice-pdf-download

我使用C＃.NET和QBFC13Lib。

編輯：

我採取這種代碼從鏈接的問題，讓所有的發票。

bool sessionBegun = false; 
     bool connectionOpen = false; 
     QBSessionManager sessionManager = null; 

     try 
     { 
      //Create the session Manager object 
      sessionManager = new QBSessionManager(); 

      //Create the message set request object to hold our request 
      IMsgSetRequest requestMsgSet = sessionManager.CreateMsgSetRequest("US", 13, 0); 
      requestMsgSet.Attributes.OnError = ENRqOnError.roeContinue; 

      //Connect to QuickBooks and begin a session 
      sessionManager.OpenConnection("", "GenerateInvoicePDFs"); 
      connectionOpen = true; 
      sessionManager.BeginSession("", ENOpenMode.omDontCare); 
      sessionBegun = true; 

      IInvoiceQuery invoiceQueryRq = requestMsgSet.AppendInvoiceQueryRq(); 

      invoiceQueryRq.IncludeLineItems.SetValue(true); 

      //Send the request and get the response from QuickBooks 
      IMsgSetResponse responseMsgSet = sessionManager.DoRequests(requestMsgSet); 
      IResponse response = responseMsgSet.ResponseList.GetAt(0); 
      IInvoiceRetList invoiceRetList = (IInvoiceRetList)response.Detail; 

      var invoices = new List<Invoice>(); 

      if (invoiceRetList != null) 
      { 
       for (int i = 0; i < invoiceRetList.Count; i++) 
       { 
        IInvoiceRet invoiceRet = invoiceRetList.GetAt(i); 

        var invoice = new Invoice 
        { 
         QuickBooksID = invoiceRet.TxnID.GetValue(), 
         EditSequence = invoiceRet.EditSequence.GetValue() 
        }; 
       } 
      } 
     } 
     catch 
     { 

     } 

我收到一個錯誤，說發票不是一種類型。

Answer 1

SDK在查詢對象上提供過濾器，使您能夠查詢數據的子集。您可以根據交易日期過濾發票：

// get all invoices for the month of august 2016 
invoiceQueryRq.ORInvoiceQuery.InvoiceFilter.ORDateRangeFilter.TxnDateRangeFilter.ORTxnDateRangeFilter.TxnDateFilter.FromTxnDate.SetValue(new DateTime(2016, 8, 1)); 
invoiceQueryRq.ORInvoiceQuery.InvoiceFilter.ORDateRangeFilter.TxnDateRangeFilter.ORTxnDateRangeFilter.TxnDateFilter.ToTxnDate.SetValue(new DateTime(2016, 8, 31)); 

或者，您也可以查詢已修改的指定日期範圍內的發票：

// all invoices modified in the month of August 2016 
invoiceQueryRq.ORInvoiceQuery.InvoiceFilter.ORDateRangeFilter.ModifiedDateRangeFilter.FromModifiedDate.SetValue(new DateTime(2016, 8, 1)); 
invoiceQueryRq.ORInvoiceQuery.InvoiceFilter.ORDateRangeFilter.ModifiedDateRangeFilter.ToModifiedDate.SetValue(new DateTime(2016, 8, 31)); 

在代碼中，你都在用，你的時候調用BeginSession，第一個參數是Blank。雖然這是通過採用當前打開的公司文件來工作的，但建議您明確提供要查詢的公司文件的文件路徑。

一定要清理你完成之後查詢：

if (requestMsgSet != null) 
{ 
    Marshal.FinalReleaseComObject(requestMsgSet); 
} 
if (invoiceQueryRq != null) 
{ 
    Marshal.FinalReleaseComObject(invoiceQueryRq); 
} 
sessionMgr.EndSession(); 
sessionMgr.CloseConnection(); 

在任何情況下，我會建議你去通過SDK開發人員指南，瞭解你的代碼實際上做的事情。

更新：

你問題的第二部分是回答here。