http://dojocampus.org/content/2009/01/31/refeshing-an-itemfilereadstore/

http://docs.dojocampus.org/dojo/data/ItemFileReadStore#reloading-refreshing-itemfilereadstore-from-a-url-dojo-toolkit-1-4

I had a similar problem, I´m using Dojo 1.1 cause migrating to 1.2 its a very painful issue at this moment. The way I solved the problem was using trutwijd’s suggestion, but setting the tree persistence in false.

You must save into a variable the node’s reference, in my case was easy using a onClick event but maybe in your own apps you’ll need another method:

itemSeleccionado = item;
nodoSeleccionado = node;
nodoSeleccionado.state = “UNCHECKED”;
console.log(item);
console.log(nodoSeleccionado);
……………
……………

Finally when you must collapse and re-expand the corresponding node you must do it with the tree widget, if you do it directly with the node the tree will stay unmodifyed. You can place the following piece of code wherever you need to refresh the node.


if(nodoSeleccionado.isExpanded)
{
console.log(”tratando de re-expandir”);
arbolWBS._collapseNode(nodoSeleccionado);
arbolWBS._expandNode(nodoSeleccionado);
}


Kind regards from Colombia an thanks to trutwijd for helping me to solve this problem. Hope it will help somebody,

Carlos Omaña.

I had a similar problem, I´m using Dojo 1.1 cause migrating to 1.2 its a very painful issue at this moment. The way I solved the problem was using trutwijd’s suggestion, but setting the tree persistence in false.

You must save into a variable the node’s reference, in my case was easy using a onClick event but maybe in your own apps you’ll need another method:

Finally when you must collapse and re-expand the corresponding node you must do it with the tree widget, if you do it directly with the node the tree will stay unmodifyed. You can place the following piece of code wherever you need to refresh the node.


if(nodoSeleccionado.isExpanded)
{
console.log(”tratando de re-expandir”);
arbolWBS._collapseNode(nodoSeleccionado);
arbolWBS._expandNode(nodoSeleccionado);
}


Kind regards from Colombia an thanks to trutwijd for helping me to solve this problem. Hope it will help somebody,

Carlos Omaña.

You must save into a variable the node’s reference, in my case was easy using a onClick event but maybe in your own apps you’ll need another method:

itemSeleccionado = item;
nodoSeleccionado = node;
nodoSeleccionado.state = “UNCHECKED”;
console.log(item);
console.log(nodoSeleccionado);
……………
……………

Finally when you must collapse and re-expand the corresponding node you must do it with the tree widget, if you do it directly with the node the tree will stay unmodifyed. You can place the following piece of code wherever you need to refresh the node.

if(nodoSeleccionado.isExpanded)
{
console.log(”tratando de re-expandir”);
arbolWBS._collapseNode(nodoSeleccionado);
arbolWBS._expandNode(nodoSeleccionado);
}

Kind regards from Colombia an thanks to trutwijd for helping me to solve this problem. Hope it will help somebody,

Carlos Omaña.

P.S. binspaul, datastore.close() function is not yet available, need to wait till dojo 1.2 for that.

console.info(”Tree store (before) : “);
console.info(_this.tree.store);

// Create a new store.
newStore = new dojo.data.ItemFileWriteStore({url: ‘folders.html?hidValAction=getjsondata’, jsId: “newFolderStore”});
newStore.fetch();
_this.tree.store = newStore;

console.info(”Tree store (after) : “);
console.info(_this.tree.store);

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The output obtained is :

Tree store (before) :
Object _arrayOfAllItems=[18] _arrayOfTopLevelItems=[18]

GET ………/folders.html?hidValAction=getjsondata

Tree store (after) :
Object _arrayOfAllItems=[0] _arrayOfTopLevelItems=[0]

Best regards,
Binu Paul

METHOD 1 :

var _this = this;
newStore = new dojo.data.ItemFileWriteStore({url: ‘test.html?hidValAction=getjsondata’, jsId: “datStore”});
newStore.fetch();
_this.tree.model.store.close();
_this.tree.store = newStore;

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

METHOD 2 :

var _this = this;

_this.tree.model.store = new dojo.data.ItemFileWriteStore({url: _this.tree.model.store.url});

_this.tree.model.store.fetch();

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The store is getting populated. But it is not getting reflected in the tree.

Best regards,
Binu Paul

var new_store = new dojo.data.ItemFileReadStore({url: ‘poptarts.txt’});
new_store.fetch();

var myTree = dijit.byId(”tree”);

myTree.store = new_store;

dojo.forEach(myTree._openedItemIds, function (item) {
n = myTree._itemNodeMap(item);
n.state = “UNCHECKED”
n.isExpanded = false;
n.expand();
});