I'm using spire excel to convert a excel sheet to an image like below:
- Code: Select all
Image img = sheet.ToImage(sheet.FirstRow, sheet.FirstColumn, sheet.LastRow, sheet.LastColumn);
and I get this error Error Image
However, when I change it to
- Code: Select all
Image img = sheet.SaveToImage(sheet.FirstRow, sheet.FirstColumn, sheet.LastRow, sheet.LastColumn);
and the convert is successfull. So, May I know whats the different between "ToImage" and "SaveToImage", and which one should i use?