Clipboard not copying the right data

Question

Hi All,
I have a JTable which displays different objects in different rows. I am trying to implement the copy paste function so that the user can do CTRL+C and paste the data in an excel spread sheet. Initially I implemented the toString method for all the objects that the table displays. But, I had to modify the copy functionality, so that, for each table row, 2 excel rows can be generated. This is how I do it.
private StringBuilder getTableData(){          
          StringBuilder sb = new StringBuilder();
          int columns = table.getColumnCount();
     int rows = table.getRowCount();
     StringBuilder row1 = null;
     StringBuilder row2 = null;
     Object value = null;
     for(int i = 0; i < rows; i++) {
          row1 = new StringBuilder();
          row2 = new StringBuilder();
          for(int j = 0; j < columns; j++) {
               if(table.getModel().getValueAt(i, j) != null){
                    value = table.getModel().getValueAt(i, j);
                    if(value instanceof FieldComparison){
                         row1.append(((FieldComparison)value).getField1());
                         row2.append(((FieldComparison)value).getField2());
                    } else {
                         row1.append(value.toString());
                         row2.append(value.toString());
               if(j < (columns - 1)){
                    row1.append("\t");
                    row2.append("\t");
          if(i < (rows - 1)){
               row1.append("\n");
               row2.append("\n");
     //sb.append("\n");
          sb.append(row1);
          sb.append(row2);
     return sb;
I copy this data to the clipboard as follows:
StringBuilder sb = getTableData();
StringSelection allData = new StringSelection(sb.toString());
cb.setContents(allData, allData);
try {
          Transferable content = cb.getContents(null);
     String clipBoardContents = (String)content.getTransferData(DataFlavor.stringFlavor);
     System.out.println(clipBoardContents);
}catch(Exception e){
          System.out.println("Transfer data error " + e.toString());
At this point I can see the proper data in the console, However when I try to do a CTRL+C on the excel spredsheet, the data appears as if the toString method was called on each object. It appears like the clipboard data that I added has been overridden somehow. Not sure what the problem is. Please Help!
Thanks!

Answer 1

Are you using LabVIEW 7.1 or older? In this case, "read from spreadsheet file" uses only SGL precision, which is not sufficient for your desired resolution.
See also: http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=315189#M315189
Solution: Read the file as a plain string and then use "spreadsheet string to array" with DBL as type.
... or upgrade to LabVIEW 8.0 or higher.
LabVIEW Champion . Do more with less code and in less time .