In Excel I can do something like this:
![Image]()
In ClosedXML I did not find a way. I tried:
In ClosedXML I did not find a way. I tried:
workSheet.Cell(rowIndex, 1).DataValidation.InCellDropdown= true;
workSheet.Cell(rowIndex, 1).DataValidation.AllowedValues = XLAllowedValues.List;
workSheet.Cell(rowIndex, 1).DataValidation.IgnoreBlanks = true;
workSheet.Cell(rowIndex, 1).DataValidation.Value = "yes;no";