Hi Aspose team,
I’m encountering an issue when using Aspose.Cells to generate screenshots from an Excel template. The behaviour of the chart’s red border seems inconsistent depending on how rows are handled:
- When no rows are hidden, the red border in the chart is rendered and exported correctly.
- When some middle rows are deleted, the red border is still rendered and exported correctly.
- However, when some middle rows are hidden, the red border in the chart goes missing in the generated screenshot.
ImageOrPrint options we’re using to generate the image (partial):
// set print options
final ImageOrPrintOptions options = new ImageOrPrintOptions();
options.setOnePagePerSheet(true);
options.setImageType(imageType.PNG);
options.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
options.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
options.setHorizontalResolution(1000);
options.setVerticalResolution(900);
options.setTransparent(true);
Images (generated vs what seen in Excel):
-
Hide Row:
Hide Row Excel.png (10.1 KB)
Hide Row Image.png (13.4 KB)
-
Unhide Row:
Unhide Row Excel.png (12.8 KB)
Unhide Row Image.png (13.7 KB)
-
No Inserted Row:
No inserted Excel.png (11.6 KB)
No inserted Row Image.png (12.6 KB)
This inconsistency is quite surprising. I’d appreciate any insights into why this might be happening, and whether there’s a workaround or fix available.
Thanks in advance!
@frankhuang05
It sounds like you’re experiencing an issue with the chart border disappearing when certain rows are hidden in your Excel template. This behavior can occur due to how Aspose.Cells handles rendering charts based on the visibility of rows.
Cause: The issue may stem from the chart’s properties or how the data is being refreshed after hiding rows.
Solution: Here are several steps to troubleshoot and potentially resolve this issue:
-
Check Chart Properties: Ensure that the chart’s properties are set correctly. Specific settings related to visibility or data range can affect how the chart is rendered.
-
Update Chart Data: After hiding rows, refresh the chart data. Use the refreshPivotData() method if your chart is based on a pivot table, or recalculate the chart if it’s based on regular data.
-
Adjust ImageOrPrintOptions: Review the options used to generate the image. Experiment with different settings, such as resolution or image type, to see if that affects the rendering of the chart border.
-
Test with Different Data: Create a simplified version of your Excel file with just the chart and a few rows of data. Test hiding rows in this simplified version to see if the issue persists. This can help isolate whether the problem is with the specific data or the chart itself.
-
Update Aspose.Cells: Ensure you are using the latest version of Aspose.Cells, as updates often include bug fixes and improvements that could resolve your issue.
Next Steps: Here’s a minimal code snippet to refresh the chart data:
// Assuming 'chart' is your Chart object
chart.refreshPivotData(); // If it's a pivot chart
chart.calculate(); // For regular charts
If these steps do not resolve the issue, please provide more details about your chart setup, and I will assist you further. Thank you for your patience, and I look forward to helping you resolve this!
Here is the PageSetup we’re using to generate the image:
// Set all margins as 0
setup.setLeftMargin(0);
setup.setRightMargin(0);
setup.setTopMargin(0);
setup.setBottomMargin(0);
And we’re using the latest version:
[INFO] ± com.aspose:aspose-cells:jar:25.3:compile
The red border should remain visible regardless of whether rows are hidden or not.
The issue persisted, thanks.
@frankhuang05,
Thank you for providing the screenshots and details.
To accurately evaluate your issue on our side, please share your template Excel file that includes the chart and has some middle rows hidden. Kindly zip the file and attach it here. We will check your issue soon.
Hello @amjad.sahi,
Thank you for your response!
This is the .zip file including the test_excel template (row 2 is hidden)
test_excel.xlsx.zip (69.9 KB)
@frankhuang05,
Thanks for the template Excel file.
After initial testing, I am able to reproduce the issue as you mentioned via screenshots by using your template Excel file and following sample code. I found the issue with missing chart border when hiding rows in Excel template.
Workbook workbook = new Workbook("d:\\files\\test_excel.xlsx");
// set print options
final ImageOrPrintOptions options = new ImageOrPrintOptions();
options.setOnePagePerSheet(true);
options.setImageType(com.aspose.cells.ImageType.PNG);
options.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
options.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
options.setHorizontalResolution(1000);
options.setVerticalResolution(900);
options.setTransparent(true);
Worksheet worksheet = workbook.getWorksheets().get("Sheet1");
PageSetup setup = worksheet.getPageSetup();
// Set all margins as 0
setup.setLeftMargin(0);
setup.setRightMargin(0);
setup.setTopMargin(0);
setup.setBottomMargin(0);
SheetRender sheetRender = new SheetRender(worksheet, options);
sheetRender.toImage(0, "d:\\files\\out1.png");
out1.zip (198.4 KB)
We require thorough evaluation of the issue. We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.
Issue ID(s): CELLSJAVA-46484
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