c# - 为什么创建数据透视表(Excel 互操作)的尝试会失败？

Question

根据我找到的代码 here ，我正在尝试像这样创建数据透视表:

var range = _xlSheet.Range[_xlSheet.Cells[6, 1],
                           _xlSheet.Cells[6, _grandTotalsColumn]];
ListObject tbl = WriteToExcelTable(_xlSheet, "tbl", "A6");
var pch = _xlBook.PivotCaches();

pch.Add(XlPivotTableSourceType.xlDatabase, "Produce Usage by Month!A6:F94")
    .CreatePivotTable(tbl, "PivTab1", Type.Missing, Type.Missing);
. . .

public ListObject WriteToExcelTable(Worksheet WSheet, string TableName, string CellStr = "A1", bool ClearSheetContent = false)
{
    Range range;

    if (ClearSheetContent)
        WSheet.Cells.ClearContents();  // clear sheet content

    // get upper left corner of range defined by CellStr
    range = (Range)WSheet.get_Range(CellStr).Cells[1, 1];   

    // Write table to range [ - don't have the helperfunc code commented this out ]
    //HelperFunc.WriteTableToExcelSheet(WSheet, this._tbl, range.Address);

    // derive range for table, +1 row for table header
    // [doesn't compile, so commented out] rang
    //range.get_Resize(this.RowCount + 1, this.ColumnCount);
    range = range.get_Resize(102, 5); // faking it to see what happens

    // add ListObject to sheet
    ListObject tbl = WSheet.ListObjects.AddEx(
        XlListObjectSourceType.xlSrcRange,
        range,
        XlListObjectHasHeaders: XlYesNoGuess.xlYes);

    // set name of excel table
    tbl.Name = TableName;

    // return excel table (ListObject)
    return tbl;
}

...但它在这一行崩溃:

pch.Add(XlPivotTableSourceType.xlDatabase, "Produce Usage by Month!A6:F94")
                .CreatePivotTable(tbl, "PivTab1", Type.Missing,   
Type.Missing);

...和:

System.ArgumentException was caught
  HResult=-2147024809
  Message=The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
  Source=""
  StackTrace:
       at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
       at Microsoft.Office.Interop.Excel.PivotCache.CreatePivotTable(Object TableDestination, Object TableName, Object ReadData, Object DefaultVersion)
       at ReportRunner.ProduceUsage.ProduceUsageRpt.AddPivotTable() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 3312
       at ReportRunner.ProduceUsage.ProduceUsageRpt.GenerateProduceUsageRpt() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 180
  InnerException:

我的方法有什么问题？请注意，我必须从借用的方法 (WriteToExcelTable()) 中注释掉两行，因为它们不会为我编译。

更新

我也尝试过这个替代方案:

private void AddPivotTable()
{
    int rowIdx = 42; // try 42 for now; adjust as/if necessary
    var pch = _xlBook.PivotCaches();
    pch.Add(XlPivotTableSourceType.xlDatabase, "PivotData!A6:D" + rowIdx)
        .CreatePivotTable(_xlSheet.Cells[6, 1], "PivTab1", Type.Missing, Type.Missing);
    . . .

...在显示的最后一行崩溃:

System.Runtime.InteropServices.COMException was caught
  HelpLink=C:\Program Files (x86)\Microsoft Office\Office12\1033\XLMAIN11.CHM
  HResult=-2146827284
  Message=Cannot open PivotTable source file 'C:\Users\cshannon\Documents\PivotData'.
  Source=Microsoft Office Excel
  ErrorCode=-2146827284
  StackTrace:
       at System.Dynamic.ComRuntimeHelpers.CheckThrowException(Int32 hresult, ExcepInfo& excepInfo, UInt32 argErr, String message)
       at CallSite.Target(Closure , CallSite , ComObject , Object , String , Object , Object )
       at System.Dynamic.UpdateDelegates.UpdateAndExecute5[T0,T1,T2,T3,T4,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
       at CallSite.Target(Closure , CallSite , PivotCache , Object , String , Object , Object )
       at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid5[T0,T1,T2,T3,T4](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
       at ReportRunner.ProduceUsage.ProduceUsageRpt.AddPivotTable() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 3172
       at ReportRunner.ProduceUsage.ProduceUsageRpt.GenerateProduceUsageRpt() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 180
  InnerException:

更新 2

即使在删除“PivotData!”之后，它显然是指一个名为的文件，从中读取数据，因此该行现在是:

pch.Add(XlPivotTableSourceType.xlDatabase, "A6:D" + rowIdx)

...它仍然崩溃，现在:

System.Runtime.InteropServices.COMException was caught
  HelpLink=C:\Program Files (x86)\Microsoft Office\Office12\1033\XLMAIN11.CHM
  HResult=-2146827284
  Message=Cannot change part of a merged cell.
  Source=Microsoft Office Excel
  ErrorCode=-2146827284
  StackTrace:
       at System.Dynamic.ComRuntimeHelpers.CheckThrowException(Int32 hresult, ExcepInfo& excepInfo, UInt32 argErr, String message)
       at CallSite.Target(Closure , CallSite , ComObject , Object , String , Object , Object )
       at System.Dynamic.UpdateDelegates.UpdateAndExecute5[T0,T1,T2,T3,T4,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
       at CallSite.Target(Closure , CallSite , PivotCache , Object , String , Object , Object )
       at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid5[T0,T1,T2,T3,T4](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
       at ReportRunner.ProduceUsage.ProduceUsageRpt.AddPivotTable() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 3174
       at ReportRunner.ProduceUsage.ProduceUsageRpt.GenerateProduceUsageRpt() in c:\Projects\ReportRunner\ReportRunner\ProduceUsage\ProduceUsageRpt.cs:line 180
  InnerException:

更新 3

因为异常是指合并单元格的问题，所以我添加了这个:

var pivotData = _xlSheet.Range["A6:D42"];
pivotData.UnMerge();

...但它仍然失败(现在与“数据透视表类的数据透视字段方法失败异常来源:Microsoft Office Excel
异常 StackTrace:在 System.RuntimeType.ForwardCallToInvokeMember(字符串成员名称，BindingFlags 标志，对象目标，Int32 [] aWrapperTypes，MessageData 和 msgData)“)。

注意:我收到“您要替换 [Book3] 按月生产使用情况中目标单元格的内容吗？” (两次)在它失败之前

Answer 1

如果不查看工作簿的具体细节，就很难诊断您列出的一些问题。生成数据透视表的基本方法是:

Range sourceData = _xlBook.Worksheets["Produce Usage by Month"].Range["A6:F94"];

PivotCache pc = pch.Create(XlPivotTableSourceType.xlDatabase, sourceData);
PivotTable pvt = pc.CreatePivotTable(sheet2.Range["A1"], "SummaryPivot");

pvt.PivotFields("Col1").Orientation = XlPivotFieldOrientation.xlRowField;
pvt.PivotFields("Col2").Orientation = XlPivotFieldOrientation.xlColumnField;
pvt.AddDataField(pvt.PivotFields("Col3"), "Sum of Col3", XlConsolidationFunction.xlSum);

看起来您的代码对某些对象并没有真正明确。例如 Produce Usage by Month!A6:F94对 Excel 意味着某些东西(并且可能由 VBA 解释)，但我认为互操作库需要更明确的对象声明。在强类型中，这将是我为 sourceData 列出的内容。目的。 sheet2因此是 Excel.Worksheet目的。

关于一些警告，例如覆盖警告，如果您更改 DisplayAlerts Excel 应用程序对象的属性为 false，它将处理其中的许多。