New Post: Why did you implement a different behaviour in XSSFWorkbook and HSSFWorkbook?

tonyqus wrote:

For HSSFWorkbook, you can also use CellStyle, FillPattern and FillForegroundColor.

Good news. Thank you.
tonyqus wrote:

Why do you use custom pallette in HSSF? I don't understand.

I use it because I read it in the docs: http://poi.apache.org/spreadsheet/quick-guide.html#CustomColors. However, the type of FillForegroundColor property is short. How can I convert C# Color value to set FillForegroundColor property using IWorbook interface only?

tonyqus wrote:

Any other examples?

In the next example:

            var region = new CellRangeAddress(RowIndex, RowIndex + RowSpan - 1, ColIndex, ColIndex + ColSpan - 1);
            _regionIndex = _cell.Sheet.AddMergedRegion(region)

HSSDSheet.AddMergedRegion(region) returns 0 and XSSDSheet.AddMergedRegion(region) returns 1 in the same situation.