I guess I found the explanation for the strange excel headers.
In the org.displaytag.render.HssfTableWriter there is a method setting the
style:
/**
* Obtain the style used to render a header or footer.
* @return The style used to render a header or footer.
*/
private HSSFCellStyle getHeaderFooterStyle()
{
HSSFCellStyle style = this.wb.createCellStyle();
style.setFillPattern(HSSFCellStyle.FINE_DOTS);
style.setFillBackgroundColor(HSSFColor.BLUE_GREY.index);
HSSFFont bold = this.wb.createFont();
bold.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
bold.setColor(HSSFColor.WHITE.index);
style.setFont(bold);
return style;
}
Since this is a private method, I guess I can´t override it... So the
questions remains;
How can we change the header styles?
Regards,
Daniel
----- Original Message -----
From: Daniel Lindberg
To: displaytag-user@lists.sourceforge.net
Sent: Friday, August 15, 2008 3:41 PM
Subject: [displaytag-user] Problems with header styles exporting to excel
I´m having some issues with the color and fills of my headers and grand
totalswhen exporting tables to excel.
I have modified the hssf decorator that comes with the display tag samples
to implement my own grand total decorators for exporting to excel and
pdf.PDF-exporting looks fine, but I´m getting really wierd colors and fills
when exporting to excel.
Since I want my totals to be bold, with black foreground and white
background,I included this code in my decorator
HSSFWorkbook wb = new HSSFWorkbook();
HSSFCellStyle style = wb.createCellStyle();
style.setFillBackgroundColor(HSSFColor.WHITE.index);style.setFillForegroundColor(HSSFColor.BLACK.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cell.setCellValue(my_total_value);
cell.setCellStyle(style);
But the result looks nothing like this at all.I get a white foreground on a
grayish background,with a FillPattern that likes somethink like
HSSFCellStyle.BIG_SPOTS. How can we change the behavior of the cell styles?
RegardsDaniel
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