Datasource

[newbieGWT]

Hi,

I am newbie. When I am using Listgrid and Datasource (mapped to a table).

I use :

 setDataURL("xxxx/enrolments");

to fetch ALL rows from the table.

After a certain event, I want to display certain rows from the table (let's say rows whose type="square").

I use ListGrid.fetchData and criteria to achieve all this and it's not a problem so far by following the sample examples.

However, I found that if the ListGrid is drawn, the criteria is somehow forgotten. The ListGrid is re-drawn if I click on an entry in the ListGrid or if the ListGrid isn't displayed onscreen yet when when I set the criteria.

How do I make the ListGrid remember the criteria that was set?

Thanks.

[Turiddu]

Hi,

try to use the following snippet of code

dataSource.fetchData(null, new DSCallback () {
	@Override
	public void execute(DSResponse response, Object rawData,
			DSRequest request) {
		table.setData(response.getData());
	}
});

Take also a look to the Javadoc about the DataSource.fetchData() methods...there you could find some useful information.

I hope this can help you.

Regards,

Salvatore