如何獲得工作簿的確切數量（Excel文件）

Question

我怎樣才能獲得的Excel files.I總數使用下面的代碼

try 
    { 
     var excelApp = new Excel.Application(); 
     excelApp.Visible = true; 
     Excel.Workbooks book = excelApp.Workbooks; 
     Excel.Workbook sheets = book.Open(schemes.ProcessExefilePath); 
    } 
catch (Exception ex) 
     { 
     } 

，然後正在打開我的文件時，我得到的文件總數。它總是返回我零計數

Microsoft.Office.Interop.Excel.Application excelApp = null; 

    try 
    { 
     excelApp = (Microsoft.Office.Interop.Excel.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Excel.Application"); 
     } 
    catch 
     { 

     } 
    if (excelApp == null) 
     { 
     excelApp = new Microsoft.Office.Interop.Excel.Application(); 
     } 

     for (int i = 0; i < excelApp.Windows.Count; i++) 
      { 
         //my work....... 
      } 

什麼是錯的這個代碼..或者是還有什麼別的東西我必須做的..

Answer 1

在你的代碼不開放在宣佈excelApp任何文件，所以Windows.count給你0

嘗試值：

Microsoft.Office.Interop.Excel.Application excelApp = null; 

try 
{ 
    excelApp = (Microsoft.Office.Interop.Excel.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Excel.Application"); 
    } 
catch 
    { 

    } 
if (excelApp == null) 
    { 
    excelApp = new Microsoft.Office.Interop.Excel.Application(); 
    } 
    ' **HERE** - Open workbooks with excelApp.Workbooks.Open(...) 
    for (int i = 0; i < excelApp.Windows.Count; i++) 
     { 
        //my work....... 
     }