A formula is an expression which performs calculations or other actions on the data in your worksheet. Using Spire.XLS, programmers can easily add, modify and calculate formulas in Excel cells. This guide will present how to add commonly used formulas to Excel with C# in WPF application.
Spire.XLS provides a class named CellRange, containing properties such as Formula, FormulaValue and HasFormula which allow users to work with formulas in specific cells. For adding a formula, the syntax could be as easy as follows:
sheet.Range[int row, int column].Formula= "=NOW()";
Apart from adding a formula for date and time, Spire.XLS also supports text, math, logical, statistical, lookup, reference and etc. Following section shows a list of over 40 formula examples (partially shown in the below screenshot) created by Spire.XLS.
Entire Code:
using Spire.Xls;
using System.Windows;
namespace WpfApplication1
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
Workbook workbook = new Workbook();
Worksheet sheet = workbook.Worksheets[0];
int currentRow = 1;
string currentFormula = string.Empty;
sheet.SetColumnWidth(1, 32);
sheet.SetColumnWidth(2, 16);
sheet.SetColumnWidth(3, 16);
sheet.Range[currentRow++, 1].Value = "Examples of formulas :";
sheet.Range[++currentRow, 1].Value = "Test data:";
CellRange range = sheet.Range["A1"];
range.Style.Font.IsBold = true;
range.Style.FillPattern = ExcelPatternType.Solid;
range.Style.KnownColor = ExcelColors.LightGreen1;
range.Style.Borders[BordersLineType.EdgeBottom].LineStyle = LineStyleType.Medium;
//test data
sheet.Range[currentRow, 2].NumberValue = 7.3;
sheet.Range[currentRow, 3].NumberValue = 5; ;
sheet.Range[currentRow, 4].NumberValue = 8.2;
sheet.Range[currentRow, 5].NumberValue = 4;
sheet.Range[currentRow, 6].NumberValue = 3;
sheet.Range[currentRow, 7].NumberValue = 11.3;
sheet.Range[++currentRow, 1].Value = "Formulas"; ;
sheet.Range[currentRow, 2].Value = "Results";
range = sheet.Range[currentRow, 1, currentRow, 2];
//range.Value = "Formulas";
range.Style.Font.IsBold = true;
range.Style.KnownColor = ExcelColors.LightGreen1;
range.Style.FillPattern = ExcelPatternType.Solid;
range.Style.Borders[BordersLineType.EdgeBottom].LineStyle = LineStyleType.Medium;
//str.
currentFormula = "=\"hello\"";
sheet.Range[++currentRow, 1].Text = "=\"hello\"";
sheet.Range[currentRow, 2].Formula = currentFormula;
sheet.Range[currentRow, 3].Formula = "=\"" + new string(new char[] { '\u4f60', '\u597d' }) + "\"";
//int.
currentFormula = "=300";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
// float
currentFormula = "=3389.639421";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
//bool.
currentFormula = "=false";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
currentFormula = "=1+2+3+4+5-6-7+8-9";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
currentFormula = "=33*3/4-2+10";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
// sheet reference
currentFormula = "=Sheet1!$B$3";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
// sheet area reference
currentFormula = "=AVERAGE(Sheet1!$D$3:G$3)";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
// Functions
currentFormula = "=Count(3,5,8,10,2,34)";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
currentFormula = "=NOW()";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow, 2].Formula = currentFormula;
sheet.Range[currentRow, 2].Style.NumberFormat = "yyyy-MM-DD";
currentFormula = "=SECOND(11)";
sheet.Range[++currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MINUTE(12)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MONTH(9)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=DAY(10)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=TIME(4,5,7)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=DATE(6,4,2)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=RAND()";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=HOUR(12)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MOD(5,3)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=WEEKDAY(3)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=YEAR(23)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=NOT(true)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=OR(true)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=AND(TRUE)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=VALUE(30)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=LEN(\"world\")";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MID(\"world\",4,2)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=ROUND(7,3)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=SIGN(4)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=INT(200)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=ABS(-1.21)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=LN(15)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=EXP(20)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=SQRT(40)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=PI()";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=COS(9)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=SIN(45)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MAX(10,30)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=MIN(5,7)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=AVERAGE(12,45)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=SUM(18,29)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=IF(4,2,2)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
currentFormula = "=SUBTOTAL(3,Sheet1!B2:E3)";
sheet.Range[currentRow, 1].Text = currentFormula;
sheet.Range[currentRow++, 2].Formula = currentFormula;
workbook.SaveToFile(@"..\..\Sample.xls");
System.Diagnostics.Process.Start(@"..\..\Sample.xls");
}
}
}
