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From Aju Mathai <mathai...@gmail.com>
Subject Re: Problem reading XLS files
Date Mon, 25 Jan 2010 12:53:40 GMT
 Hi Mark,
>
> The file is generated automatically without any user intervention. How
> do i find out whether the excel file has been modified in the ways you
> talk about ? . The POI version that i am using is 3.5_beta3.
>
> Thanks & Regards,
> mathaj

On Fri, Jan 22, 2010 at 1:12 PM, MSB <markbrdsly@tiscali.co.uk> wrote:
>
> Excel can behave quite oddly at times and it will create a record for a cell
> if it has been 'touched' in any way by the user during creation of the file.
> By this, I mean that if the user entered a value into a cell and then
> cleared that out or if they set a format and then removied it, Excel will
> recognise that something was done to the cell and will create a record for
> it in the file. Without seeing the actual file/files you are working with I
> cannot comment much further but do suspect that this may have been the case;
> either the user or the application that created the file left a few of these
> artifacts around. I do not expect that this is a problem with POI but to be
> certain, can you post one of the files that is exhibiting this sort of
> behaviour so that we could take a closer look at it please? Further, can you
> say which version of the API you are using and how the Excel file is
> generated - by someone using Excel or by another application - please?
>
> Yours
>
> Mark B
>
>
>
> Aju Mathai wrote:
>>
>> Hi,
>>
>> I am using the following POI libraries to read in the files with .xls
>> and .xlsx files. I found a strange problem ,the celliterator.hasNext()
>> sometimes gives true even if the next column in my xls file seems to
>> be blank, i have no additional columns. How do i take care of such
>> blank cells ?
>>
>> Here is my code snippet
>>
>>                     for(Iterator<Cell> ri = row.cellIterator();
>> ri.hasNext();)  {
>>                         Cell cell = ri.next();
>>
>>                               switch(cell.getCellType()){
>>                               case Cell.CELL_TYPE_STRING:
>>                                       text.append(cell.getRichStringCellValue().getString().trim());
>>                                       break;
>>                               case Cell.CELL_TYPE_NUMERIC:
>>                                       text.append(cell.getNumericCellValue());
>>                                       break;
>>                               case Cell.CELL_TYPE_BOOLEAN:
>>                                       text.append(cell.getBooleanCellValue());
>>                                       break;
>>                               case Cell.CELL_TYPE_FORMULA:
>>                                       text.append(cell.getCellFormula());
>>                                       break;
>>                               case Cell.CELL_TYPE_BLANK:
>>                                       break;
>>                               default:
>>                                       text.append("");
>>                               }
>>                               // Column Delimiter
>>                               if(ri.hasNext() &&  !(cell.getCellType()
== Cell.CELL_TYPE_BLANK))
>>                                       text.append(COLUMN_DELIMITER);
>>                       }
>>
>>
>> Thanks
>> mathaj
>>
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>>
>>
>
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>
>
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