为什么尝试创建数据透视表（Excel 互操作）失败？

Question

根据我在here找到的代码，我正在尝试创建一个数据透视表，如下所示：

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;
}

...但它在这条线上崩溃了：

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

...与：

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吗？请注意，我必须注释掉借用方法 (WriteToExcelTable()) 中的两行，因为它们无法为我编译。

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了：

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

即使删除了“PivotData！”，它显然是指一个名为该文件的文件，从中读取数据，所以该行现在是：

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

...它仍然崩溃，现在是：

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，所以我添加了以下内容：

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

...但它仍然失败（现在使用“PivotTable 类的 PivotFields 方法失败异常源：Microsoft Office Excel 异常 StackTrace：位于 System.RuntimeType.ForwardCallToInvokeMember（String memberName，BindingFlags flags，Object target，Int32[] aWrapperTypes，MessageData& msgData）”）。

注意： 在失败之前，我收到“您想替换 [Book3]Produce Use by Month 中目标单元格的内容吗？”（两次）

Answer 1

如果不查看工作簿的具体信息，就很难诊断您列出的某些问题。 生成数据透视表的基本方法是这样的：

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);

看起来您的代码对于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，这就是我为

sourceData

对象列出的内容。 因此

sheet2

是一个

Excel.Worksheet

对象。

关于某些警告，例如覆盖警告，如果将 Excel 应用程序对象的

DisplayAlerts

属性更改为 false，它将处理其中的许多警告。