We’ve observed inconsistent behavior when reading CSV files using Aspose.Cells:
When creating a Workbook object using a file path, the resulting worksheet name matches the CSV file name.
However, when creating a Workbook object using an InputStream, the worksheet name defaults to “Sheet1”.
This difference in behavior can cause inconsistencies in downstream processing. Can you provide a fix and consistent behavior?
It sounds like you’re experiencing a difference in behavior when creating a Workbook object from a file path versus an InputStream in Aspose.Cells. When using a file path, the worksheet name corresponds to the CSV file name, while using an InputStream defaults the worksheet name to “Sheet1”.
Cause: This discrepancy occurs because the library automatically assigns the worksheet name based on the source type.
Solution: To achieve consistent behavior, you can manually set the worksheet name after loading the workbook from the InputStream. Here’s a simple example of how to do this:
using Aspose.Cells;
using System.IO;
public class CsvWorkbookExample
{
public static void Main()
{
// Load CSV file from InputStream
using (FileStream stream = new FileStream("path/to/your/file.csv", FileMode.Open))
{
Workbook workbook = new Workbook(stream, new TxtLoadOptions(LoadFormat.Csv));
// Set the worksheet name to match the CSV file name
string fileNameWithoutExtension = Path.GetFileNameWithoutExtension("file.csv");
workbook.Worksheets[0].Name = fileNameWithoutExtension;
// Now you can work with the workbook as needed
workbook.Save("output.xlsx");
}
}
}
Next Steps: After implementing this code, you should see that the worksheet name now matches the CSV file name, ensuring consistent naming regardless of how the workbook is created.
If you have any further questions or need additional assistance, feel free to ask!
This is expected behavior. When loading from a file path, Aspose.Cells uses the filename (without extension) as the worksheet name. When loading from an InputStream, there’s no filename information available to the component, so it defaults to “Sheet1”. For your needs, you can get the CSV file name to save into some variable in code and then set sheet name accordingly. See the following sample code for your reference that works fine with the attached CSV file.
String path = "d:/files/tst_csvBook1.csv";
String fileName = path.substring(path.lastIndexOf("/") + 1);
int dotIndex = fileName.lastIndexOf(".");
String sheetName = fileName.substring(0, dotIndex);
File file = new File(path);
FileInputStream inputStream = new FileInputStream(file);
TxtLoadOptions opts = new TxtLoadOptions(LoadFormat.CSV);
Workbook workbook = new Workbook(inputStream, opts);
workbook.getWorksheets().get(0).setName(sheetName);
System.out.println(workbook.getWorksheets().get(0).getName());
tst_csvBook1.zip (183 Bytes)
console output:
tst_csvBook1
In earlier versions of aspose, workbook object created using the filepath was also having sheetname as “Sheet1” and not the filename as sheet name.
In some later versions this is fixed. So wanted to know if we have similar way to provide input to aspose cells API for creating workbook object using inputstream and complexity of this will be hidden to end user.
Did you mean that when creating the Workbook object (while loading the CSV file) from streams, you would like the sheet name to automatically match the CSV file’s name? I’m sorry, but as I mentioned earlier, this might not be feasible. The data captured is simply a stream of bytes, and the InputStream does not retain any information about the source file name. It’s purely a byte stream without metadata related to the original file.