我认为,最简单的方法是手动添加该列,计算必要的值;我现在是这样做的(基本上与Excel互操作中的想法相同-手动添加总计列):
在数据透视表代码之后,我调用AddManualGrandTotalColumn(),即:
private void AddManualGrandTotalColumn()
{
var pivot = pivotTableSheet.PivotTables[0];
var dataBodyRange = pivot.DataBodyRange;
int rowsUsed = dataBodyRange.EndRow;
int FIRST_DATA_ROW = 7;
int currentQtyRow = FIRST_DATA_ROW;
int ROWS_IN_A_RANGE = 4;
// Needed?
pivot.RefreshData();
pivot.CalculateData();
// Get Total Sales value, which will be needed for computing the % val
Cell totalTotalPurchasesCell = pivotTableSheet.Cells[rowsUsed - 2, _grandTotalsColumnPivotTable + 1];
decimal totalTotalPurchases = Convert.ToDecimal(totalTotalPurchasesCell.Value);
Cell gtLabelCell = pivotTableSheet.Cells[6, _grandTotalsColumnPivotTable + 2];
gtLabelCell.Value = "Grand Total";
Cell QtyCell = null;
Cell PriceCell = null;
Cell AvgPriceCell = null;
Cell PercentageCell = null;
while (currentQtyRow < rowsUsed)
{
// SumTotalQty
int qty = GetSumTotalQty(currentQtyRow);
QtyCell = pivotTableSheet.Cells[currentQtyRow, _grandTotalsColumnPivotTable + 2];
QtyCell.Value = qty;
// SumTotalPrice
decimal price = GetSumTotalPrice(currentQtyRow+1);
PriceCell = pivotTableSheet.Cells[currentQtyRow+1, _grandTotalsColumnPivotTable + 2];
PriceCell.Value = price;
// Calculate Avg Price (SumTotalPrice / SumTotalQty)
decimal avg = 0.0M;
if ((price > 0) && (qty > 0))
{
avg = price / qty;
}
AvgPriceCell = pivotTableSheet.Cells[currentQtyRow+2, _grandTotalsColumnPivotTable + 2];
AvgPriceCell.Value = avg;
// Calculate Percentage (totalTotalPurchases / SumTotalPrice?)
decimal prcntg = 0.0M;
if ((totalTotalPurchases > 0) && (price > 0)) // ? Right calculation?
{
prcntg = totalTotalPurchases / price;
}
PercentageCell = pivotTableSheet.Cells[currentQtyRow+3, _grandTotalsColumnPivotTable + 2];
PercentageCell.Value = prcntg;
currentQtyRow = currentQtyRow + ROWS_IN_A_RANGE;
}
}
private int GetSumTotalQty(int currentQtyRow)
{
int FIRST_MONTH_COL = 2;
int LAST_MONTH_COL = _grandTotalsColumnPivotTable; // - 1;
int cumulativeQty = 0;
Cell qtyCell = null;
for (int i = FIRST_MONTH_COL; i <= LAST_MONTH_COL; i++)
{
qtyCell = pivotTableSheet.Cells[currentQtyRow, i];
cumulativeQty = cumulativeQty + Convert.ToInt32(qtyCell.Value);
}
return cumulativeQty;
}
…(等用于GetSumTotalPrice())