Java的Aspose Cells：获取原始CSV行

Question

I am using Aspose to read a CSV file.

I do not beforehand know the number of cells for each row of the file, but I will need to know it for further processing.

Unfortunately, I see no way to find out the number of cells in a CSV row.

Imagine the following row in the CSV file. It contains 7 cells, 4 of which are empty:

1,2,,4,,,

Using

row.iterator();

Aspose will only return 3 cells, as it ignores all empty cells.

As an alternative, I now do the following:

    Cell lastCell = row.getLastCell();

    int count = 0;
    do {
        cell = row.getCellOrNull(count);
        String cellValue = cell == null ? "" : cell.getStringValueWithoutFormat();

        //do something with the cell value...

        count++;
    } while (cell == null || ! lastCell.equals(cell));

This works better, as it returns the first 4 cells. However, it still ignores the last 3 cells .

Is there any way to get information about the missing cells? (It would be sufficient for me if Aspose could return the original Row as a String - I could then count the number of commas and find out the number of cells this way)

Answer 1

You may use Worksheet.getCells().getMaxDisplayRange() method to get the maximum display range.

Please consider this CSV. If you open it in MS-Excel and check the last cell, you will find it is Q2

Book1.csv

2,,,,1,,,,,,,,,,,,,
,,3,,,,

Aspose.Cells returns the same via the following code.

TxtLoadOptions opts = new TxtLoadOptions(LoadFormat.CSV);

Workbook wb = new Workbook("Book1.csv", opts);
Worksheet ws = wb.getWorksheets().get(0);
Range rng = ws.getCells().getMaxDisplayRange();

System.out.println(rng);

Here is the console output of the code.

Console Output

Aspose.Cells.Range [ Sheet1!A1:Q2 ]

Note: I am working as Developer Evangelist at Aspose