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comboboxvaadinvaadin8

Vaadin 8 Combobox howto selected fist item

I tried the following: 

 machineComboBox.setEmptySelectionAllowed(false);
 machineComboBox.focus();
 this.addComponent(machineComboBox);

I read:

Cannot set focus on combobox inside a grid

Solution

  • What exactly you are trying to achieve? If you simply want to select the first item, then this should work:

    machineComboBox.setSelectedItem(yourItems.get(0));

    Example is taken from here : Selection Components

    focus() doesn't select anything, only focuses (outlines) the component.