Build and load a tree with data from database with ExtJs - extjs

Question

I'm trying to build a treepanel (or just a simple tree I just need it to work) and load it with data from database
I've been trying and trying and trying ..but cant do it.
Can someone show me how can I do this please?
My JSON:
{
{Title:'yahoo Website',adress:'www.yahoo.com',Description:'Serveur yahoo'},
{Title:'skype',adress:'skype.com',Description:'skype.com'},
{Title:'bing',adress:'www.bing.com',Description:'microsoft bing'},
{Title:'facebook',adress:'www.facebook.com',Description:'social network'},
{Title:'Google',adress:'Google.com',Description:'Google';},
{Title:'\' or 1=1--',adress:'\' or 1=1--',Description:'\' or 1=1--'}
]
My C# code:
public class Interact : JsonRpcHandler {
[JsonRpcMethod()]
public string ReadAssets() {
clsDBInteract objDBInteract = new clsDBInteract();
string result;
try {
result = objDBInteract.FetchAssetsJSON();
} catch (Exception ex) {
throw ex;
}
return result;
}

Answer 1

firstly look at this simple example. This tree have a store wich can read infromation from url by json scructure. You can write there http://youdomain.com/yourscript.php. At yourscript.php you have to read information from database, encode it to JSON and run echo your_json;
That's all.
P.S. json example

Answer 2

i solved this by creating my own type (no jayrock)
my tree model and store:
Ext.define('TreeModel', {
extend: 'Ext.data.Model',
fields: [
{ name: 'text' },
{ name: 'id' },
{ name: 'descr' }
]
});
window.TreeStore = Ext.create('Ext.data.TreeStore', {
model: 'TreeModel',
root: Ext.decode(obj.TreeToJson()),
proxy: {
type: 'ajax'
},
sorters: [{
property: 'leaf',
direction: 'ASC'
}, {
property: 'text',
direction: 'ASC'
}]
});
my class:
public class TreeItem
{
public string text { get; set; }
public int id { get; set; }
public string descr { get; set; }
public string expanded { get; set; }
public string leaf { get; set; }
public List<TreeItem> children { get; set; }
}
then i get my data and fill my tree like this
public string TreeToJson()
{
List<TreeItem> child = new List<TreeItem>();
for (int i = 0; i < n; i++)
{
child.Add(new TreeItem() { text = t.AssetTree()[i].Item1, id = t.AssetTree()[i].Item2, ip = t.AssetTree()[i].Item3, descr = t.AssetTree()[i].Item4, expanded = "false", leaf = "true" });
}
TreeItem tree = new TreeItem() { text = "my root", id = 0, expanded = "true", leaf = "false", children = child };
}
hope it helps someone