public static void Run()
{
// ExStart:UpdateReferenceInWorksheets
// Create workbook
Workbook wb = new Workbook();
// Add second sheet with name Sheet2
wb.Worksheets.Add("Sheet2");
// Access first sheet and add some integer value in cell C1
// Also add some value in any cell to increase the number of blank rows and columns
Worksheet sht1 = wb.Worksheets[0];
sht1.Cells["C1"].PutValue(4);
sht1.Cells["K30"].PutValue(4);
// Access second sheet and add formula in cell E3 which refers to cell C1 in first sheet
Worksheet sht2 = wb.Worksheets[1];
sht2.Cells["E3"].Formula = "'Sheet1'!C1";
// Calculate formulas of workbook
wb.CalculateFormula();
// Print the formula and value of cell E3 in second sheet before deleting blank columns and rows in Sheet1.
Console.WriteLine("Cell E3 before deleting blank columns and rows in Sheet1.");
Console.WriteLine("--------------------------------------------------------");
Console.WriteLine("Cell Formula: " + sht2.Cells["E3"].Formula);
Console.WriteLine("Cell Value: " + sht2.Cells["E3"].StringValue);
// If you comment DeleteOptions.UpdateReference property below, then the formula in cell E3 in second sheet will not be updated
DeleteOptions opts = new DeleteOptions();
opts.UpdateReference = true;
// Delete all blank rows and columns with delete options
sht1.Cells.DeleteBlankColumns(opts);
sht1.Cells.DeleteBlankRows(opts);
// Calculate formulas of workbook
wb.CalculateFormula();
// Print the formula and value of cell E3 in second sheet after deleting blank columns and rows in Sheet1.
Console.WriteLine("");
Console.WriteLine("");
Console.WriteLine("Cell E3 after deleting blank columns and rows in Sheet1.");
Console.WriteLine("--------------------------------------------------------");
Console.WriteLine("Cell Formula: " + sht2.Cells["E3"].Formula);
Console.WriteLine("Cell Value: " + sht2.Cells["E3"].StringValue);
// ExEnd:UpdateReferenceInWorksheets
}
}