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this work for Additional information regarding copyright ownership.
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namespace TestCases.HSSF.UserModel{
using System;
using System.Collections;
using NPOI.HSSF.UserModel;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using NPOI.SS.UserModel;
/**
* Tests to show that our documentation at
* http://poi.apache.org/hssf/eval.html
* all actually works as we'd expect them to
*/
[TestClass]
public class TestFormulaEvaluatorDocs
{
/**
* http://poi.apache.org/hssf/eval.html#EvaluateAll
*/
[TestMethod]
public void TestEvaluateAll()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.Sheet s1 = wb.CreateSheet();
NPOI.SS.UserModel.Sheet s2 = wb.CreateSheet();
wb.SetSheetName(0, "S1");
wb.SetSheetName(1, "S2");
Row s1r1 = s1.CreateRow(0);
Row s1r2 = s1.CreateRow(1);
Row s2r1 = s2.CreateRow(0);
Cell s1r1c1 = s1r1.CreateCell(0);
Cell s1r1c2 = s1r1.CreateCell(1);
Cell s1r1c3 = s1r1.CreateCell(2);
s1r1c1.SetCellValue(22.3);
s1r1c2.SetCellValue(33.4);
s1r1c3.CellFormula = ("SUM(A1:B1)");
Cell s1r2c1 = s1r2.CreateCell(0);
Cell s1r2c2 = s1r2.CreateCell(1);
Cell s1r2c3 = s1r2.CreateCell(2);
s1r2c1.SetCellValue(-1.2);
s1r2c2.SetCellValue(-3.4);
s1r2c3.CellFormula = ("SUM(A2:B2)");
Cell s2r1c1 = s2r1.CreateCell(0);
s2r1c1.CellFormula = ("S1!A1");
// Not Evaluated yet
Assert.AreEqual(0.0, s1r1c3.NumericCellValue, 0);
Assert.AreEqual(0.0, s1r2c3.NumericCellValue, 0);
Assert.AreEqual(0.0, s2r1c1.NumericCellValue, 0);
// Do a full Evaluate, as per our docs
// uses EvaluateFormulaCell()
for (int sheetNum = 0; sheetNum < wb.NumberOfSheets; sheetNum++)
{
NPOI.SS.UserModel.Sheet sheet = wb.GetSheetAt(sheetNum);
HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(wb);
for (IEnumerator rit = sheet.GetRowEnumerator(); rit.MoveNext(); )
{
Row r = (Row)rit.Current;
for (IEnumerator cit = r.GetCellEnumerator(); cit.MoveNext(); )
{
Cell c = (Cell)cit.Current;
if (c.CellType == NPOI.SS.UserModel.CellType.FORMULA)
{
evaluator.EvaluateFormulaCell(c);
// For Testing - all should be numeric
Assert.AreEqual(NPOI.SS.UserModel.CellType.NUMERIC, evaluator.EvaluateFormulaCell(c));
}
}
}
}
// Check now as expected
Assert.AreEqual(55.7, wb.GetSheetAt(0).GetRow(0).GetCell(2).NumericCellValue, 0);
Assert.AreEqual("SUM(A1:B1)", wb.GetSheetAt(0).GetRow(0).GetCell(2).CellFormula);
Assert.AreEqual(NPOI.SS.UserModel.CellType.FORMULA, wb.GetSheetAt(0).GetRow(0).GetCell(2).CellType);
Assert.AreEqual(-4.6, wb.GetSheetAt(0).GetRow(1).GetCell(2).NumericCellValue, 0);
Assert.AreEqual("SUM(A2:B2)", wb.GetSheetAt(0).GetRow(1).GetCell(2).CellFormula);
Assert.AreEqual(NPOI.SS.UserModel.CellType.FORMULA, wb.GetSheetAt(0).GetRow(1).GetCell(2).CellType);
Assert.AreEqual(22.3, wb.GetSheetAt(1).GetRow(0).GetCell(0).NumericCellValue, 0);
Assert.AreEqual("'S1'!A1", wb.GetSheetAt(1).GetRow(0).GetCell(0).CellFormula);
Assert.AreEqual(NPOI.SS.UserModel.CellType.FORMULA, wb.GetSheetAt(1).GetRow(0).GetCell(0).CellType);
// Now do the alternate call, which zaps the formulas
// uses EvaluateInCell()
for (int sheetNum = 0; sheetNum < wb.NumberOfSheets; sheetNum++)
{
NPOI.SS.UserModel.Sheet sheet = wb.GetSheetAt(sheetNum);
HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(wb);
for (IEnumerator rit = sheet.GetRowEnumerator(); rit.MoveNext(); )
{
Row r = (Row)rit.Current;
for (IEnumerator cit = r.GetCellEnumerator(); cit.MoveNext(); )
{
Cell c = (Cell)cit.Current;
if (c.CellType == NPOI.SS.UserModel.CellType.FORMULA)
{
evaluator.EvaluateInCell(c);
}
}
}
}
Assert.AreEqual(55.7, wb.GetSheetAt(0).GetRow(0).GetCell(2).NumericCellValue, 0);
Assert.AreEqual(NPOI.SS.UserModel.CellType.NUMERIC, wb.GetSheetAt(0).GetRow(0).GetCell(2).CellType);
Assert.AreEqual(-4.6, wb.GetSheetAt(0).GetRow(1).GetCell(2).NumericCellValue, 0);
Assert.AreEqual(NPOI.SS.UserModel.CellType.NUMERIC, wb.GetSheetAt(0).GetRow(1).GetCell(2).CellType);
Assert.AreEqual(22.3, wb.GetSheetAt(1).GetRow(0).GetCell(0).NumericCellValue, 0);
Assert.AreEqual(NPOI.SS.UserModel.CellType.NUMERIC, wb.GetSheetAt(1).GetRow(0).GetCell(0).CellType);
}
}
}
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