如何在 C# 中使用 Microsoft.Office.Interop.Excel 添加数据透视表过滤器

Question

I create a pivot table based on an Excel (.xlsx) file. The program adds fields to rows, values, and the filter. Using PivotFilters.Add2 causes 0x800a03ec error which terminates the program. How to properly use PivotFilters.Add2 ?

I tried filtering on different fields with different data types. Also, I tried using Type.Missing in a place of unused arguments. There seems to be plenty of information of this method for VB, but not so much for C#.

Items selected in the filter should be between the two dates on the last line.

    var xlApp = new Microsoft.Office.Interop.Excel.Application();
    xlApp.Visible = true;
    var workBook = xlApp.Workbooks.Open(spreadsheetLocation);
    var workSheet1 = (Microsoft.Office.Interop.Excel.Worksheet)workBook.Sheets["Data"];
    var workSheet2 = (Microsoft.Office.Interop.Excel.Worksheet)workBook.Sheets.Add();

    Microsoft.Office.Interop.Excel.Range last = workSheet1.Cells.SpecialCells(Microsoft.Office.Interop.Excel.XlCellType.xlCellTypeLastCell, Type.Missing);
    Microsoft.Office.Interop.Excel.Range range = workSheet1.get_Range("A1", last);

    Microsoft.Office.Interop.Excel.PivotCaches pivotCaches = null;
    Microsoft.Office.Interop.Excel.PivotCache pivotCache = null;
    Microsoft.Office.Interop.Excel.PivotTable pivotTable = null;
    Microsoft.Office.Interop.Excel.PivotFields pivotFields = null;
    Microsoft.Office.Interop.Excel.PivotField filterField = null;
    Microsoft.Office.Interop.Excel.PivotField accNumField = null;
    Microsoft.Office.Interop.Excel.PivotField amountPaidField = null;

    pivotCaches = workBook.PivotCaches();
    pivotCache = pivotCaches.Create(XlPivotTableSourceType.xlDatabase, range);

    pivotTable = pivotCache.CreatePivotTable(workSheet2.Cells[1,1]);
    pivotFields = (Microsoft.Office.Interop.Excel.PivotFields)pivotTable.PivotFields();
    amountPaidField = (Microsoft.Office.Interop.Excel.PivotField)pivotFields.Item("AmountPaid");
    amountPaidField.Orientation = Microsoft.Office.Interop.Excel.XlPivotFieldOrientation.xlDataField;
    amountPaidField.NumberFormat = "$#,###,###.00";

    accNumField = (Microsoft.Office.Interop.Excel.PivotField)pivotFields.Item("AccNumber");
    accNumField.Orientation = Microsoft.Office.Interop.Excel.XlPivotFieldOrientation.xlRowField;

    filterField = (Microsoft.Office.Interop.Excel.PivotField)pivotFields.Item("AccDate");
    filterField.Orientation = Microsoft.Office.Interop.Excel.XlPivotFieldOrientation.xlPageField;
    filterField.EnableMultiplePageItems = true;
    filterField.PivotFilters.Add2(XlPivotFilterType.xlDateBetween, Type.Missing, DateTime.Now.AddDays(-30), DateTime.Now.AddDays(-20));

Answer 1

  #First it deletes two rows and then it creates a pivot table#
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using Microsoft.Office.Interop.Excel;
    
    
    namespace ConsoleApplication4
    {
        class Program
        {
            public static string Column(int column)
            {
                column--;
                if (column >= 0 && column < 26)
                    return ((char)('A' + column)).ToString();
                else if (column > 25)
                    return Column(column / 26) + Column(column % 26 + 1);
                else
                    throw new Exception("Invalid Column #" + (column + 1).ToString());
            }
    
            static void Main(string[] args)
    
            {
               
    
                try
                {
                    string path = @"C:\Users\UX155512\Documents\Book1fd.xlsx";
                    var excelFile = new Application();
                    Workbook workBook = excelFile.Workbooks.Open(path);
                    Worksheet workSheet = workBook.Worksheets[1];
                    Worksheet pivotSheet = workBook.Worksheets.Add(
                        System.Reflection.Missing.Value,
                        workBook.Worksheets[workBook.Worksheets.Count],
                        1,
                        System.Reflection.Missing.Value);
    
    
    
    
                    Range last = workSheet.Cells.SpecialCells(XlCellType.xlCellTypeLastCell, Type.Missing);
                    int lastRow = last.Row;
                    int lastCol = last.Column;
                    string lastColVal = Column(lastCol);
                    string lastFilledCol = lastColVal + lastRow.ToString();
                    Console.WriteLine(lastFilledCol);
                    Console.WriteLine(lastColVal);
                  
                    Console.WriteLine(lastRow);
                    Console.WriteLine(lastCol);
    
                   
                    for (int i = 1; i <= lastRow; i++)
                    {
                        if (workSheet.Cells[1][i].Value == ("HDR"))
                        {
                            workSheet.Rows[i].Delete();
                            Console.WriteLine("The Row Containing HDR has been deleted");
                        }
                        if (workSheet.Cells[1][i].Value == ("TRL"))
                        {
                            workSheet.Rows[i].Delete();
                            Console.WriteLine("The Row Containing TLR has been deleted");
                        }
    
                    }
    
    
                   
                    Range lastRange = workSheet.Range["A1", lastFilledCol];
    
                    
    
                    
                    pivotSheet.Name = "Pivot Table";
                   
                    Range range = pivotSheet.Cells[1, 1];
                    PivotCache pivotCache = (PivotCache)workBook.PivotCaches().Add(XlPivotTableSourceType.xlDatabase, lastRange);
                    PivotTable pivotTable = (PivotTable)pivotSheet.PivotTables().Add(PivotCache: pivotCache, TableDestination: range);
                    PivotField pivotField = (PivotField)pivotTable.PivotFields("Plan Number");
                    pivotField.Orientation = XlPivotFieldOrientation.xlRowField;
    
                    PivotField pivotField2 = (PivotField)pivotTable.PivotFields("Source");
                    pivotField2.Orientation = XlPivotFieldOrientation.xlColumnField;
    
                    PivotField pivotField3 = (PivotField)pivotTable.PivotFields("Total");
                    pivotField3.Orientation = XlPivotFieldOrientation.xlDataField;
                    pivotField3.Function = XlConsolidationFunction.xlSum;
                   
    
                 
                    workBook.SaveAs(@"C:\Users\UX155512\Documents\Excel Dump\Trial9.xlsx");
                    workBook.Close();
                    
    
                   
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex);
                   
                }
    
                Console.Read();
            }
        }
    }

Answer 2

As mentioned above by Asger, the filter can't be added to a page field. Instead, the pivot item's visibility property has to be set.

var pivotItems = filterField.PivotItems();
DateTime date = Convert.ToDateTime(item.Name);
foreach (var item in pivotItems)
{
    item.Visible = false;
    if (date < DateTime.Now.AddDays(-30) || date > DateTime.Now.AddDays(-20))
    {
        item.Visible = true;
    }
}

Answer 3

找到几乎所有互操作问题的答案的最佳方法是记录一个宏，然后检查源。