How to set a message inside a Table when no records found?

Vaadin 6 / 7 / 8
1

Hi there,

I’m trying to set a message inside a Table when no records found into database.

How can I do this properly? I found a way

there

 but that does not match my needs. I have to manage a multi-language website so I have to display the message in different languages.

Any thoughts would be appreciated. Thank you !

Lrt

2

I’ve never used it, but I think you can do this using a Table.RowGenerator.

3

You can replace the table, with label dynamicaly:

        if (!recordsFound()) {
            Label noChanges = new Label(__("NO_RECORDS"), ContentMode.HTML);
            noChanges.setSizeUndefined();
            noChanges.addStyleName(ValoTheme.LABEL_H1);
            noChanges.addStyleName(ValoTheme.LABEL_COLORED);
            getViewer().replaceComponent(content, noChanges);
            ((AbstractOrderedLayout) getViewer()).setComponentAlignment(noChanges, Alignment.MIDDLE_CENTER);
        }
4

Hi Auke,

Thank you for answering me back.

I tried something like that :

[code]
if (myTable.isEmpty()) {

   myTable.setRowGenerator(new Table.RowGenerator() {

         @Override
         public Table.GeneratedRow generateRow(Table table, Object itemId) {
                     
             Table.GeneratedRow row = new Table.GeneratedRow();
             row.setText("No records found");

             return row;
         }
   });

}
[/code]… but I got nothing displayed at all into my table. What am I doing wrong here?
I did not find any conclusive examples on the web in matter to achieve it.

Do you have an example or other suggestions to make it work?

Thank you,
Lrt

5

Hi Agata,

Thank you for answering me back.

I already thought about it and it could be a good alternative but that is not what I want as result.
I want the “No records found” message displaying into the table.

Any other suggestions?

Thank you,
Lrt

6

You probably need to add an item to display the message:

if (myTable.isEmpty()) {
       myTable.addItem();
       myTable.setRowGenerator(new Table.RowGenerator() {

             @Override
             public Table.GeneratedRow generateRow(Table table, Object itemId) {
                         
                 Table.GeneratedRow row = new Table.GeneratedRow();
                 row.setText("No records found");

                 return row;
             }
       }); 
}