Refresh node in tree panel

[colin.doig.wialus]

Hi, in version 3 I used this to reload (from the server) a single node in a TreePanel:

treePanel.on('click', function(node, event) {

// some code to send update message to the server, causing the children to change

node.reload();
});

But I can't figure out how to do the same thing in extjs 4.

treePanel.on('itemclick', function(view, record){

// some code to send update message to the server, causing the children to change

// what goes here???
});


Thanks for your help

[westy]

Heh, yeah, it's a bit of a faff now... NodeInterface is not very good IMHO.

Anyway, I do the following:

// Remove all current children if clear on load not set
if (!treeStore.clearOnLoad) {
    record.removeAll();
}

// Call load, refreshing our view when done...
var viewRefresher = function() {
    view.refresh();
};

treeStore.load({
    node: record,
    callback: viewRefresher
}); 

Obviously you need your tree store, and the view refreshing bit is needed for me since I change the icons during fillNode, and it doesn't seem to stick unless you kick it

Not quite as simple as pre-Ext 4....

Hope that helps,
Westy

[colin.doig.wialus]

Thanks Westy, it works

[Priet]

The above workaround does the job, however it is not very efficient.

Does anyone know how to reload a single node in a tree?

The 3.x way was by far less complex

[westy]

Agreed, and it only reloads children, not that nodes data itself.

It's on my list to sort out properly, but no time at the moment.
Of course, if someone gets there first I'd be happy to re-use


Really do not like the new tree, it's painful, buggy and slow...

[Priet]

Really do not like the new tree, it's painful, buggy and slow...

Amen to that! The new tree is definitely a huge step back I don't care about models, columns etc, I just want to add nodes and reload them!

[astrocybernaute]

i join my voice to yours..
i still cant make a treepanel work not even the example!

[Kcarpenter]

I have to say I fought with it for a week as well just to get ours ported from 3.x to 4.
Finally I figured out you could pass a Node to the load method to get nodes loaded.
Some how I managed to miss that in documentation and all searching on line.

Now what I wish I could figure out quickly is how to on ItemClick, to not only load the nodes, but also expand it after the load happens. Anyone got that down?

[paulocordeiro]

I have same problem.

var node = myTree.getStore().getNodeById('myId');  // OK !!

if i try update the TreeStore

myTree.getStore().load();

and recover then node again,

var node = myTree.getStore().getNodeById('myId');  // UNDEFINED

[zhangming_3113]

I have tried you method to refresh my tree,but error occurred:"the mothod is not supported"