Remove all rows from FlexTable

[hezjing]

Hi

I'm populating a FlexTable using setText(row, column, text).

Here is what I did to clear the entire contents of a FlexTable,

            int count = myFlexTable.getRowCount();

            for (int i = 0; i < count; i++) {

                myFlexTable.removeRow(i);

            }

Is there a more elegant way to clear a FlexTable?

Thank you!

--

Hez

[obesga]

myFlexTable.clear()

will remove the widgets on the table, I don't now if this will be
usefull to you

Or simlpy remove the flextable from the parent widget and atach a new
flextable

Oskar

[hezjing]

Hi Oskar

Unfortunately the clear() does not work, the Javadoc explained that clear() removes all widgets from the table, but does not remove other HTML or "text" contents of cells.

--

Hez

[Lothar Kimmeringer]

hezjing schrieb:

> Unfortunately the clear() does not work, the Javadoc explained that
> clear() removes all widgets from the table, but does not remove other
> HTML or "text" contents of cells.

Sounds strange. Can you post a small example what exactly you mean?
Especially what you mean with "other HTML or text". HTML is a widget
and text generally is handled as Label-widget.

Regards, Lothar

[hezjing]

OK, I don't want to pollute this mailing list with my messy codes and so, I thought showing the following callback is sufficient:

    private AsyncCallback<List<Customer>> callback = new AsyncCallback<List<Customer>>() {

        public void onFailure(Throwable caught) {

        }

        public void onSuccess(List<Customer> customers) {

            customersFlexTable.clear();

            int row = 0;

            for (Customer customer : customers) {

                customersFlexTable.setText(row, 0, customer.getFirstName());

                customersFlexTable.setText(row, 1, customer.getLastName());

                row++;

            }

        }

    };

When a use selects a customer type from a ListBox, the ClickListener will make a RPC call and return a list of customers.

I want to clear the existing customerFlexTable, and show only the data returned from the RPC call.

The problem now is that customersFlexTable.clear() seems not clearing the existing data.

--

Hez

[Lothar Kimmeringer]

hezjing schrieb:

> OK, I don't want to pollute this mailing list with my messy codes and
> so, I thought showing the following callback is sufficient:
>

> customersFlexTable.setText(row, 0, customer.getFirstName());
> customersFlexTable.setText(row, 1, customer.getLastName());
>

> When a use selects a customer type from a ListBox, the ClickListener
> will make a RPC call and return a list of customers.
> I want to clear the existing customerFlexTable, and show only the data
> returned from the RPC call.
>
> The problem now is that customersFlexTable.clear() seems not clearing
> the existing data.

I don't know if this a bug in FlexTable (I assume the developers
will read here as well), but the fastest solution would be to use

customersFlexTable.setText(row, 0, new Label(customer.getFirstName()));
customersFlexTable.setText(row, 1, new Label(customer.getLastName()));

Regards, Lothar

[hezjing]

Hi Lothar

Yes, it works when changed to the following,

customersFlexTable.setWidget(row, 0, new Label(customer.getFirstName()));
customersFlexTable.setWidget(row, 1, new Label(customer.getLastName()));

Thank you!

--

Hez

[walden]

Yes there is.

myFlexTable = new FlexTable();
// code to plug the new instance in where the old instance used to be

Walden

[olivier nouguier]

Hi,
 IMHO it's also necessary to remove the "old" myFlexTable from is parent ? no ?

--
"Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible"  
     - proverbe indien Cri

[Thomas Broyer]

On 2 oct, 09:55, hezjing <hezj...@gmail.com> wrote:

The fastest is to create a new FlexTable to replace the old one (as
proposed by Walden).

If you can't (for whatever reason), then the above code won't work,
you have to count down:
int count = myFlexTable.getRowCount();
while (count > 0) {
myFlexTable.removeRow(0);
}

But let me reiterate: the fastest will be to throw away your current
table and create a new one.

[walden]

That depends on the nature of the parent. For example, with a
SimplePanel as parent, you wouldn't.

On Oct 2, 10:27 am, "olivier nouguier" <olivier.nougu...@gmail.com>
wrote:

>      - proverbe indien Cri- Hide quoted text -
>
> - Show quoted text -

[Narasimha Aditya Gollapudi]

You could use myFlexTable.removeAllRows()