文档建议反馈控制台
首页
学习
活动
专区
工具
TVP
最新优惠活动
文章/答案/技术大牛
发布
社区首页 >问答首页 >Excel进程未关闭

问Excel进程未关闭
EN

Stack Overflow用户
提问于 2011-08-06 02:05:33
回答 6查看 7.2K关注 0票数 4

一旦我使用完我的EXCEL (32)进程，我就无法关闭它。

正如您在下面的代码中看到的，一旦ProcessRFAFData函数完成执行，EXCEL进程就不会关闭(我仍然可以在任务管理器中看到EXCEL.EXE*32 )。

由于这个原因，当SaveErrors开始执行时，我得到以下异常：

代码语言：javascript
复制
System.Runtime.InteropServices.COMException (0x800A03EC):   
Microsoft Office Excel cannot open or save any more documents because there is not enough available memory or disk space.   
• To make more memory available, close workbooks or programs you no longer need.   
• To free disk space, delete files you no longer need from the disk you are saving to.  
at Microsoft.Office.Interop.Excel.Workbooks.Add(Object Template)   
at NextG.RFAFImport.Layouts.NextG.RFAFImport.RFAFDataImporter.<>c__DisplayClass9.b__6()   
at Microsoft.SharePoint.SPSecurity.<>c__DisplayClass4.b__2()   
at Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode)   
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param)   
at Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode)  
at NextG.RFAFImport.Layouts.NextG.RFAFImport.RFAFDataImporter.SaveErrors()

下面是执行Excel进程的代码：

代码语言：javascript
复制
try {
    ProcessRFAFData(FileName);
} catch (Exception ex) {
    Status = "ERROR: " + ex.ToString();
}

if (Errors.Count() > 0) {
    SaveErrors();
}

下面是与Excel交互的所有函数：

代码语言：javascript
复制
private void ReleaseObject(object obj) {
    try {
        System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
        obj = null;
    } catch (Exception) { } finally {
        GC.Collect();
    }
}

private void ProcessRFAFData(string FileName) {
    Microsoft.Office.Interop.Excel.Application XLA = null;
    Microsoft.Office.Interop.Excel.Workbook XLW = null;
    Microsoft.Office.Interop.Excel.Worksheet XLS = null;

    bool error = false;

    try {
        SPSecurity.RunWithElevatedPrivileges(delegate() {
            XLA = new Microsoft.Office.Interop.Excel.Application();
            XLW = XLA.Workbooks.Open(FileName, 0, true,
                Type.Missing, null, null, true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows,
                Type.Missing, false, false, Type.Missing, false, Type.Missing, Type.Missing);

            int index = RFAFTabExists(ref XLW);
            if (index == 0) return;

            XLS = (Microsoft.Office.Interop.Excel.Worksheet)XLW.Worksheets.get_Item(index);

            if (!ValidProjectID(ref XLS)) return;

            ParseData(ref XLS);

            XLW.Close(true, Type.Missing, Type.Missing);
            XLA.Quit();

            ReleaseObject(XLS);
            ReleaseObject(XLW);
            ReleaseObject(XLA);
        });
    } catch (SP.ServerException ex) {
        // output error
    } catch (Exception ex) {
        // output error
    }
}

private int RFAFTabExists(ref Microsoft.Office.Interop.Excel.Workbook XLW) {
    int index = 0;
    foreach (Microsoft.Office.Interop.Excel.Worksheet w in XLW.Worksheets) {
        if (w.Name.Equals(settings.Collection["RFAFTabName"])) index++;
    }

    return index;
}

private bool ValidProjectID(ref Microsoft.Office.Interop.Excel.Worksheet XLS) {
    using (SP.ClientContext CTX = new SP.ClientContext(SiteURL)) {
        var projectId = XLS.Cells.get_Range(settings.Collection["ProjectIDCell"], Type.Missing).Text.ToString();

        var project = // getting list of projects from SharePoint

        if (project.Count() > 0) {
            ProjectID = XLS.Cells.get_Range(settings.Collection["ProjectIDCell"], Type.Missing).Text.ToString();
            return true;
        }
    }

    return false;
}

private void ParseData(ref Microsoft.Office.Interop.Excel.Worksheet XLS) {
    ListData.Add("HID", GetHID(XLS.Cells.get_Range(settings.Collection["HIDCell"],
        Type.Missing).Text.ToString()));

    if (ListData["HID"].Equals("0")) Errors.Add(new ImportError {
        Reason = "Hub ID does not exist in this project workspace.",
        Reference = string.Format("Hub ID: {0}", XLS.Cells.get_Range(settings.Collection["HIDCell"],
        Type.Missing).Text.ToString())
    });

    int row = Int32.Parse(settings.Collection["StartRow"]);
    while (!NoMoreData(ref XLS, row)) {
        string PRSIN = XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["PRSIN"], row), Type.Missing).Text.ToString();

        string NOC = ValidateNumber(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["NOC"], row), Type.Missing).Text.ToString());

        string UEIRP = ValidateNumber(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["UEIRP"], row), Type.Missing).Text.ToString());

        string LAT = ValidateLatLon(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["LAT"], row), Type.Missing).Text.ToString());

        string LON = ValidateLatLon(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["LON"], row), Type.Missing).Text.ToString());

        string PJ = GetPJ(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["JurisdictionCol"], row), Type.Missing).Text.ToString(),
            XLS.Cells.get_Range(string.Format("{0}{1}", settings.Collection["StateCol"], row),
            Type.Missing).Text.ToString());

        string ST = GetState(XLS.Cells.get_Range(string.Format("{0}{1}",
            settings.Collection["JurisdictionCol"], row), Type.Missing).Text.ToString(),
            XLS.Cells.get_Range(string.Format("{0}{1}", settings.Collection["StateCol"], row),
            Type.Missing).Text.ToString());

        ListItemData.Add(new ListItem {
            ProposedRemoteSiteItemNumber = PRSIN,
            NumberOfCarriers = NOC,
            UsableEIRP = UEIRP,
            Latitude = LAT,
            Longitude = LON,
            PrimaryJurisdiction = PJ,
            State = ST
        });

        row++;
    }
}

private bool NoMoreData(ref Microsoft.Office.Interop.Excel.Worksheet XLS, int row) {
    return string.IsNullOrEmpty(XLS.Cells.get_Range(string.Format("{0}{1}",
        settings.Collection["ProposedRemoteSiteItemNumberCol"], row), Type.Missing).Text.ToString());
}

private void SaveErrors() {
    Microsoft.Office.Interop.Excel.Application XLA = null;
    Microsoft.Office.Interop.Excel.Workbook XLW = null;
    Microsoft.Office.Interop.Excel.Worksheet XLS = null;

    object MissingValue = System.Reflection.Missing.Value;

    try {
        try {
            SPSecurity.RunWithElevatedPrivileges(delegate() {
                XLA = new Microsoft.Office.Interop.Excel.Application();
                XLW = XLA.Workbooks.Add(MissingValue);
                XLS = (Microsoft.Office.Interop.Excel.Worksheet)XLW.Worksheets.get_Item(1);

                XLS.Cells[1, 1] = "Reason for error";
                XLS.Cells[1, 2] = "Reference";

                XLS.get_Range("A1").Font.Bold = true;
                XLS.get_Range("B1").Font.Bold = true;

                int row = 2;
                foreach (ImportError e in Errors) {
                    XLS.Cells[row, 1] = e.Reason;
                    XLS.Cells[row, 2] = e.Reference;

                    row++;
                }

                XLW.SaveAs(ErrorLogFileName, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal,
                    MissingValue, MissingValue, MissingValue, MissingValue,
                    Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, MissingValue,
                    MissingValue, MissingValue, MissingValue, MissingValue);

                XLW.Close(true, MissingValue, MissingValue);
                XLA.Quit();

                ReleaseObject(XLS);
                ReleaseObject(XLW);
                ReleaseObject(XLA);
            });
        } catch (Exception ex) {
            Status = "ERROR: " + ex.ToString();
        }

        // Uploading excel file to SharePoint document library

    } catch (Exception) { }
}
c#
.net
excel
sharepoint
pia
EN

回答 6

Stack Overflow用户

回答已采纳

发布于 2011-08-06 02:15:40

你可能不得不去可笑的explicit

代码语言：javascript
复制
excelWorkbook.Close (false, System.Reflection.Missing.Value,System.Reflection.Missing.Value) ;   
excelWorkbooks.Close();  
excelApp.Quit();  
Marshal.ReleaseComObject(excelWorksheet);  
Marshal.ReleaseComObject(excelSheets);  
Marshal.ReleaseComObject(excelWorkbooks);  
Marshal.ReleaseComObject(excelWorkbook);  
Marshal.ReleaseComObject(excelApp);  
excelWorksheet = null;  
excelSheets = null;  
excelWorkbooks = null;  
excelWorkbook = null;  
excelApp = null;  
GC.GetTotalMemory(false);  
GC.Collect();  
GC.WaitForPendingFinalizers();  
GC.Collect();  
GC.GetTotalMemory(true);

我曾经遇到过这样的情况，即使是这样也不能做到。我求助于寻找Excel进程并在其上调用Kill()。

票数 3
EN

Stack Overflow用户

发布于 2011-08-06 02:10:33

在finally块中释放Excel对象，以防出现异常。

代码语言：javascript
复制
try
{
...
}
catch
{
...
}
finally
{
  ReleaseObject(XLS);
  ReleaseObject(XLW);
  ReleaseObject(XLA);
}
票数 3
EN

Stack Overflow用户

发布于 2011-08-06 02:46:56

第一个建议：http://code.google.com/p/excellibrary这是一个很棒的库，我用它取得了很大的成功。

第二个建议:如果你一定要关闭Excel

代码语言：javascript
复制
/// <summary>
/// Gets all currently running instances of Excel, so we don't kill active windows.
/// </summary>
private void GetInstancesToSave()
{
    if (_instancesToSaveList != null)
    {
        _instancesToSaveList.Clear();
    }
    _instancesToSaveList = Process.GetProcesses().ToList<Process>();
    _instancesToSaveList = _instancesToSaveList.FindAll(proc => proc.ProcessName == "EXCEL");
}

/// <summary>
/// Kills any instances of Excel that were created by the program.
/// </summary>
/// <param name="zInstancesToSave">Instances that were not </param>
private static void KillExcel(List<Process> zInstancesToSave)
{
    List<Process> xProcesslist = Process.GetProcesses().ToList<Process>();
    xProcesslist = xProcesslist.FindAll(proc => proc.ProcessName == "EXCEL");
    foreach (Process xTheprocess in xProcesslist)//read through all running programs
    {
        bool killit = true;
        foreach (Process proc in zInstancesToSave)//read through all running programs
        {
            if (xTheprocess.Id == proc.Id)
            {
                killit = false;
            }
        }
        if (killit)
        {
            xTheprocess.Kill();
        }
    }
}

您可以使用这两种方法来跟踪在启动时哪些excel实例正在运行，然后找到您的应用程序打开的任何Excel实例，然后终止它们。这当然不是一个很好的解决方案，但有时你必须咬紧牙关。

如果你不关心以前的实例，你也可以这样做：

代码语言：javascript
复制
/// <summary>
/// Kills any instances of Excel that were created by the program.
/// </summary>
/// <param name="zInstancesToSave">Instances that were not </param>
private static void KillExcel(List<Process> zInstancesToSave)
{
    List<Process> xProcesslist = Process.GetProcesses().ToList<Process>();
    xProcesslist = xProcesslist.FindAll(proc => proc.ProcessName == "EXCEL");
    foreach(Proc process in xProcesslist)
    {
        process.Kill();
    }
}
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/6960693

复制
相关文章

相似问题

领券

腾讯云开发者

扫码关注腾讯云开发者

扫码关注腾讯云开发者

领取腾讯云代金券

热门产品

热门推荐

更多推荐

Copyright © 2013 - 2024 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有 

深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 深公网安备号 44030502008569

腾讯云计算（北京）有限责任公司 京ICP证150476号 |  京ICP备11018762号 | 京公网安备号11010802020287

问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档