JTable with hashmap--please help

[uzma ali]

I am listing the code below

  public Object getValueAt(int row, int column) {
    String [][] str = new String[1][6];
    List myList = new ArrayList(contractorRecords.keySet());
    String[] finRec =(String[]) contractorRecords.get(myList.get(row));
     return finRec[column];
    }  

My questions are

1) if my hashmap(contractorRecords) gets 14 records there are more calls to getRowCount. Why is that happening. when I move up and down the scroll bar then values change in the console.

2)I am using hashmap in which the key are the record Numbers. I have no idea how to pass the keys to the main file so that it can be selected my the client but at the same time should not be displayed in the table.

  public int getRowCount() {
    System.out.println("row count " + contractorRecords.size() );
        return contractorRecords.size();
    }  

[Xabier Martija]

I don't understand your problem, but it would be easyer if you used an arraylist instead of a hashtable.

[uzma ali]

if I use arrayList how can I take the rec No to the next step in the GUI where we need the rec No for the book.

Please help as I am really stuck and no way to find help

uzma

[David Winters Junior]

Uzma,

How did ypu finally work around this issue of displaying the hashmap in a JTable. I am facing a similar issue currently and i came across your post here.

Your help would be much appreciated.

Thanks,
david

[Thomas Hubschman]

Hi Uzma,

(First Question)

Could you explain further I do not understand your question. It sounds like a Swing rendering issue but I am not sure.

(Second Question)

You can have the TableModel store, but not display, the column numbers as part of the data model.

Tom