extjs 动态添加的控件 点击删除后 控件删除了,怎么fieldlabel还显示呢

动态添加的控件 点击删除后 控件删除了,怎么fieldlabel还显示呢 extjs --------------------编程问答-------------------- 把3个fieldtext放在一个div或panel中，直接删除div不就得了。 --------------------编程问答-------------------- 源码贴出来  估计是只删除了 增加的 text输入框 而前面的 说明没有删除 --------------------编程问答-------------------- //这是定义的     
       var oForm = new Ext.FormPanel({
                renderTo: 'form_panel',
                id: 'oForm',
                layout: "column",
                baseCls: "x-plain",
                hideLabels: false,
                bodyStyle: 'margin-left:5px; margin-top:10px',
                labelAlign: "right",
                border: false,
                items: [{
                    width: 190,
                    layout: "form",
                    baseCls: "x-plain",
                    labelWidth: 55,
                    border: false,
                    items: [{
                        xtype: "textfield",
                        labelAlign: "right",
                        fieldLabel: "酒店地址",
                        maxLength: 25,
                        id: 'address0'
                    }]
                }, {
                    width: 170,
                    layout: "form",
                    baseCls: "x-plain",
                    labelWidth: 35,
                    border: false,
                    items: [{
                        xtype: "textfield",
                        fieldLabel: "房号",
                        maxLength: 25,
                        id: 'room0'
                    }]

                }, {
                    width: 175,
                    layout: "form",
                    baseCls: "x-plain",
                    labelWidth: 55,
                    border: false,
                    items: [{
                        xtype: "datefield",
                        fieldLabel: "入住日期",
                        width: 110,
                        format: 'Y-m-d',
                        id: 'Date0',
                        readOnly: true
                    }]

                }, {
                    width: 60,
                    layout: "form",
                    baseCls: "x-plain",
                    border: false,
                    items: [{
                        xtype: "button",
                        text: "+",
                        width: 40,
                        id: 'del0',
                        listeners: {
                            click: function (t, f, s) {
                                add(); //添加
                            }

                        }
                    }]
                }
               ]
            })




//这是方法

function add() {
            var oForm = Ext.getCmp('oForm');
            n++;
            var liveAddr = new Ext.form.TextField({ name: 'address' + n, id: 'address' + n, fieldLabel: '酒店地址' });
            var liveAddrinfo = new Ext.form.TextField({ name: 'room' + n, id: 'room' + n, fieldLabel: '房号' });
            var liveDay = new Ext.form.DateField({ name: 'Date' + n, id: 'Date' + n, fieldLabel: '入住日期',readOnly :true, width: 110, format: 'Y-m-d' });

            var del = new Ext.Button({ name: 'del' + n, id: 'del' + n, text: '-', width: 40, listeners: { click: function (t, f, s) {
                var id = t.id
                id = id.substring(3, id.length);
                if (id) {
                debugger
                    oForm.items.items[0].remove(Ext.getCmp('address' + id));
                    oForm.items.items[1].remove(Ext.getCmp('room' + id));
                    oForm.items.items[2].remove(Ext.getCmp('Date' + id));
                    oForm.items.items[3].remove(Ext.getCmp('del' + id));
                    oForm.doLayout();
                }
            }
            }
            });

            oForm.items.items[0].add(oForm.items.getCount(), liveAddr);
            deleteInfo(0);

            oForm.items.items[1].add(oForm.items.getCount(), liveAddrinfo);
            deleteInfo(1);

            oForm.items.items[2].add(oForm.items.getCount(), liveDay);
            deleteInfo(2);

            //oForm.items.items[3].add(oForm.items.getCount(), del);
            //deleteInfo(3);

            oForm.doLayout();

        } --------------------编程问答-------------------- 你的这个功能是怎么实现的

补充：.NET技术 ,  ASP.NET