coolite ComboxTree

用coolite开发的项目，也需要用到comboTree，千辛万苦，终于和老外要到了代码。

1 Ext.namespace('Ext.ux');
2 /**** @class ComboTree* @extends Ext.form.ComboBox*/
3 Ext.ux.ComboTree = Ext.extend(Ext.form.ComboBox, {
4     extStore: null,
5     tree: null,
6     treeId: 0,
7     setValue: function (v) {
8         var text = v;
9         if (this.valueField) {
10             var r = this.findExtRecord(this.valueField, v);
11             if (r) {
12                 text = r.data[this.displayField];
13             } else if (this.valueNotFoundText !== undefined) {
14                 text = this.valueNotFoundText;
15             }
16         }
17         Ext.ux.ComboTree.superclass.setValue.call(this, text);
18         this.lastSelectionText = text;
19         if (this.hiddenField) {
20             this.hiddenField.value = v;
21         }
22         this.value = v;
23     },
24     initComponent: function () {
25         this.treeId = Ext.id();
26         this.focusLinkId = Ext.id();
27         Ext.apply(this, {
28             store: new Ext.data.SimpleStore({
29                 fields: [],
30                 data: [[]]
31             }),
32             editable: false,
33             shadow: false,
34             mode: 'local',
35             triggerAction: 'all',
36             maxHeight: 200,
37             tpl: '<tpl for="."><div style="height:200px"><div >

ComboTree.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Web.UI;
using Coolite.Ext.Web;

[assembly: WebResource("Coolite.Ext.UX.Extensions.ComboTree.resources.ComboTree.js", "text/javascript")]

namespace Coolite.Ext.UX
{
    [Designer(typeof(EmptyDesigner))]
    [DefaultProperty("")]
    [Xtype("combotree")]
    [InstanceOf(ClassName = "Ext.ux.ComboTree")]
    [ClientScript(Type = typeof(ComboTree), WebResource = "Coolite.Ext.UX.Extensions.ComboTree.resources.ComboTree.js", FilePath = "ux/extensions/combotree/combotree.js")]
    [ToolboxData("<{0}:ComboTree runat=\"server\" Title=\"Combo tree\" Height=\"300\"></{0}:ComboTree>")]
    [Description("Combobox with tree functionality")]
    public class ComboTree : ComboBox
    {
        private ItemsCollection<TreePanel> tree;

        [ClientConfig("tree", typeof(ItemCollectionJsonConverter))]
        [Category("Config Options")]
        [NotifyParentProperty(true)]
        [DefaultValue(null)]
        [PersistenceMode(PersistenceMode.InnerProperty)]
        public virtual ItemsCollection<TreePanel> Tree
        {
            get
            {
                if (this.tree == null)
                {
                    this.tree = new ItemsCollection<TreePanel>();
                }

                return this.tree;
            }
        }

        protected override void OnLoad(EventArgs e)
        {
            this.Controls.Add(Tree[0]);

            if (!this.LazyItems.Contains(Tree[0]))
            {
                this.LazyItems.Add(Tree[0]);
            }

            base.OnLoad(e);
        }
    }
}