when click a tree item. how to select first tree item child node
I try with
treeMenu.select(childNode.getId());
and
treeMenu.setValue( childNode.getId() );
treeMenu.setImmediate(true);
but the child item is n ot selected
thanks for any help
when click a tree item. how to select first tree item child node
I try with
treeMenu.select(childNode.getId());
and
treeMenu.setValue( childNode.getId() );
treeMenu.setImmediate(true);
but the child item is n ot selected
thanks for any help
Yeah, according to API you select with the select(T) method.
https://vaadin.com/download/release/8.1/8.1.6/docs/api/com/vaadin/ui/Tree.html#select-T-
.
So if you initialize a Tree with for example.
Tree<Person> tree = new Tree<>();
Then you can select rows with person beans
tree.select(myPerson)
where myPerson is of class Person.
Can you share a little more on your code.
thanks for your answer
I am using vaadin 7 tree so this constructor doesn’t work (can’t support parametrized tree)
Tree tree = new Tree<>();
I create the tree using this code
[color=#3498db]
//
treeMenu.setMultiSelect(false);
treeMenu.setSelectable(true);
treeMenu.setSizeFull();
//
treeMenu.addContainerProperty("caption", String.class, "");
//
treeMenu.addContainerProperty("object", Resource.class, "");
//
treeMenu.addContainerProperty("icon", com.vaadin.server.Resource.class, "");
//
treeMenu.setItemCaptionPropertyId("caption");
treeMenu.setItemIconPropertyId("icon" );
treeMenu.setItemCaptionMode(Tree.ITEM_CAPTION_MODE_PROPERTY);
//
treeMenu.setSelectable(true);
[/color]
I try to select child with this code
[color=#3498db]
public boolean selectTreeItem ( String childMenuCode, String parentMenuCode ) {
if ( (childMenuCode != null) && ( ! childMenuCode.equals("")) && ( ! parentMenuCode.equals(childMenuCode) ) ) {
Resource parentResource = resourceDao.findByName(parentMenuCode);
Resource childResource = resourceDao.findByName(childMenuCode);
if(childResource != null) {
Item itemParent = treeMenu.getItem(parentResource.getId());
treeMenu.expandItem(itemParent);
//
// boolean status = treeMenu.isSelected(selResource.getId());
// boolean statusOrig = treeMenu.isSelected(selResourceOrig.getId());
treeMenu.unselect(parentResource.getId());
treeMenu.select(childResource.getId());
//
treeMenu.setValue( childResource.getId() );
treeMenu.setImmediate(true);
}
//
return true;
}
return false;
[/color]
}
thanks for any help
Here’s a minimal example on how to achieve auto selectin the first child when a parent is clicked and thus selected: