Re: tree reload problem
> Becareful, there are the myfaces tree component(with his strucutre and > model), and the jsf component tree ( interface form's represantion ) > Here i speak about the jsf component tree. Update this code, it's just > an example, you have to find in jsf tree where is the myfaces component > and then remove it. Don't you really need to replace the tree instead of removing it? I thought if you just removed the tree from JSF tree that it won't get rendered. You're not dumping the whole JSF tree are you? (That's not what your code shows.) Also, I assume you have a new model for the new tree. If you guys didn't know I am working on a new Tree for MyFaces. Its going to be much simpler to configure and hopefully more powerful. On Monday I am going to submit it to the CVS repository (on the trunk) as tree2. It will be tree2 until we are satisified with it and can get rid of the original tree. In the new tree all you would need to do is update the model that underlies the tree component. You leave the JSF tree alone. Just update the data you provide the tree and it will re-render. The only catch is that if you replace the tree data, it wouldn't know which of the nodes was open earlier. That would be a bit tricky but it could be managed (possibly by an extended class or renderer.) Stay tuned for the new tree. I definitely need help testing it. I should have a pretty good server-side only example on Monday. The javascript version will follow shortly! sean > Adrien,
Re: tree reload problem
Steffen,
I have in interface commandButton with an actionlistener who exectute this:
public void resetTree2(ActionEvent event) {
try{
UIComponent UIPater = event.getComponent().getParent().getParent();
UIComponent UITree2 = UIPater.findComponent("tree2");
UIPater.getChildren().remove(UITree2);
}...
}
So jsf automaticly rebuild her tree model, and take the update. it's not
an beautiful solution but it's work !!
Becareful, there are the myfaces tree component(with his strucutre and
model), and the jsf component tree ( interface form's represantion )
Here i speak about the jsf component tree. Update this code, it's just
an example, you have to find in jsf tree where is the myfaces component
and then remove it.
Adrien,
Steffen Hankiewicz wrote:
Hello all again. Dear Adrien,
Thanks a lot for your response. I'm at home now, so that I can not
test your solution until tomorrow. But how do you exactly destroy your
tree?
And if you really destroy it to build it new: isn't your current
visualized structure (the expanded and collapsed nodes) also
destroyed, so that all the expanded nodes are collapsed again? How do
you restore the view exactly as it was before the update of the tree?
Thanks again for your help,
Steffen
Re: tree reload problem
Hello all again. Dear Adrien, Thanks a lot for your response. I'm at home now, so that I can not test your solution until tomorrow. But how do you exactly destroy your tree? And if you really destroy it to build it new: isn't your current visualized structure (the expanded and collapsed nodes) also destroyed, so that all the expanded nodes are collapsed again? How do you restore the view exactly as it was before the update of the tree? Thanks again for your help, Steffen
Re: tree reload problem
Steffen,
I have the same problem, to solve it i destroy the tree component in
the jsf model, when you update the tree structure.
Adrien
Steffen Hankiewicz wrote:
Hi all,
I have a little problem with my treeview. I'd like to give the user the
possibility to change the order of the tree items. Now the user for
example clicks a button to move the current node up to another parent
(the parent of his parent). Until now all works fine. The node gets
indeed another parent. But in my form the tree never gets updated. I
tried all I can. But the tree never gets reloaded. The node stays
visually under its former parent.
Can you give me any advise, how to solve this problem?
Thanks a lot,
Steffen
Here is my code so far:
/**
* move node up
*/
public String NodeUp() {
myLogger.debug("Metadaten() - NodeUp() Start");
// get the parents
DefaultMutableTreeNode oldFather = (DefaultMutableTreeNode)
myNode.getParent();
DefaultMutableTreeNode newFather = (DefaultMutableTreeNode)
myNode.getParent().getParent();
myLogger.info("old father: " + oldFather);
myLogger.info("new father: " + newFather);
// set the new parent
myNode.setParent((DefaultMutableTreeNode) newFather);
myLogger.info("new father after: " +
myNode.getParent().toString());
// all these commands don't update the tree
// myTree.nodeStructureChanged(newFather);
// myTree.nodeStructureChanged(oldFather);
// myTree.nodeStructureChanged((DefaultMutableTreeNode)
myTree.getRoot());
myLogger.debug("Metadaten() - NodeUp() End");
// show the same page again
return null;
}
tree reload problem
Hi all,
I have a little problem with my treeview. I'd like to give the user the
possibility to change the order of the tree items. Now the user for
example clicks a button to move the current node up to another parent
(the parent of his parent). Until now all works fine. The node gets
indeed another parent. But in my form the tree never gets updated. I
tried all I can. But the tree never gets reloaded. The node stays
visually under its former parent.
Can you give me any advise, how to solve this problem?
Thanks a lot,
Steffen
Here is my code so far:
/**
* move node up
*/
public String NodeUp() {
myLogger.debug("Metadaten() - NodeUp() Start");
// get the parents
DefaultMutableTreeNode oldFather = (DefaultMutableTreeNode)
myNode.getParent();
DefaultMutableTreeNode newFather = (DefaultMutableTreeNode)
myNode.getParent().getParent();
myLogger.info("old father: " + oldFather);
myLogger.info("new father: " + newFather);
// set the new parent
myNode.setParent((DefaultMutableTreeNode) newFather);
myLogger.info("new father after: " +
myNode.getParent().toString());
// all these commands don't update the tree
// myTree.nodeStructureChanged(newFather);
// myTree.nodeStructureChanged(oldFather);
// myTree.nodeStructureChanged((DefaultMutableTreeNode)
myTree.getRoot());
myLogger.debug("Metadaten() - NodeUp() End");
// show the same page again
return null;
}
