CODEWITHSUNDEEP
javaswingmodeljtable
user1079404
user1079404

Reputation: 308

JTable - AutoRowSorter - getColumnClass - not working

In my Table Model I have an ArrayList<ArrayList<Object>> which contains my data.

The data has been read in from a .csv file, each record is of the form:

7.68573749,-8.551567,21,276,AUD,AAA,7.224,1002,250,AUD Eurobonds Secondary,01/02/1996,T00001

I tried to read in each cell with the appropriate type but, for example, 7.68573749 would not read in with the scanner method nextDouble(). So everything is read in as String by default.

So my TableModel extends AbstractTableModel, and I have overridden the getColumnClass method, using an array of Class types hardwired in, with the getColumnClass(int col) returning the appropriate Class etc

Unfortunately, I still cannot set each cell to be the appropriate type as I get errors: cannot render Object as Number, when trying to use Double.Class.

I can however set everything to be either String or Integer.

But even with that, the AutoRowSorter still sorts every column by String only.

I can post code, but there is a lot of code and I can provide it when asked specifically what is needed.

Any help would be great, thanks, the ultimate goal here is to be able to sort the table data correctly

Upvotes: 1

Views: 357

Answers (1)

c.pramod
c.pramod

Reputation: 606

Try to set column's Datatype as double , then convert the String numbers into Double using Double.valueOf() and simultaneously insert it into the JTable

example 

for(int i=0;i<ss.length;i++)
  {
   table_model_object.addRow(i,Double.valueOf(ss[i]);
   }

Upvotes: 1

Related Questions