Declarative UI and variable binding

Vaadin 6 / 7 / 8
1

Hello,
This is my first post on the forum and I would like to present myself. My name is Mario Latronico and I’m using Vaadin for the first time to develop an online application for car rentals.

I tried to use the declarative ui to shrink the java code but I got the "Found unbound fields from component root [carTable]
"

My declarative ui is the following :

  <v-grid-layout size-full="true" spacing="true" >
            <row>
                <v-table id="carTable" width="95%" height="30%"  />
            </row>
   </v-grid-layout>

and the relative code in Java is in the internal class CarLayoutDesign :

[code]
@DesignRoot
protected static class CarLayoutDesign extends GridLayout
{
Table carTable;
public CarLayoutDesign()
{

    }
 
}

[/code]This class is used inside its enclosing class to read the layout :

InputStream is = getClass().getClassLoader().getResourceAsStream("vaadin/carlayout.xml");
DesignContext read = Design.read(is, design);
setCompositionRoot(design);

I tried also to investigate on the Vaadin source code (FieldBinder.java, GridLayout.java and DesignContext) and it appears that the carTable variable is put on the map unboundFields.

2

I’d guess that your is missing the element inside the . Hence, the parser loses the carTable element, which is out-of-place inside the , and complains about it missing.

3

Thank you Marko, I’m not at work now, tomorrow I will try your suggestion.

UPDATE:
Yes I added the tag and now it is working properly.
Thanl you again.