/** * 此控件支持Ext3.2及以上版本 * 用法与Ext.form.DateField一样 * 例如：var startDt = new Ext.ux.DateTimeField({fieldLabel:'开始时间',name:'startTm'}); */Ext.ux.DateTimeField = Ext.extend(Ext.form.DateField, {	width:145,	format:'Y-m-d H:i:s',	onTriggerClick : function(){        if(this.disabled){            return;        }        if(this.menu == null){            this.menu = new Ext.ux.DateTimeMenu({                hideOnClick: false,                focusOnSelect: false            });        }        this.onFocus();        Ext.apply(this.menu.picker,  {            minDate : this.minValue,            maxDate : this.maxValue,            disabledDatesRE : this.disabledDatesRE,            disabledDatesText : this.disabledDatesText,            disabledDays : this.disabledDays,            disabledDaysText : this.disabledDaysText,            format : this.format,            showToday : this.showToday,            minText : String.format(this.minText, this.formatDate(this.minValue)),            maxText : String.format(this.maxText, this.formatDate(this.maxValue))        });        this.menu.picker.setValue(this.getValue() || new Date());        this.menu.show(this.el, "tl-bl?");        this.menuEvents('on');    },    getErrors: function(value) {        var errors = Ext.form.DateField.superclass.getErrors.apply(this, arguments);        value = this.formatDate(value || this.processValue(this.getRawValue()));        if (value.length < 1) { // if it's blank and textfield didn't flag it then it's valid             return errors;        }        var svalue = value;        value = this.parseDate(value);        if (!value) {            errors.push(String.format(this.invalidText, svalue, this.format));            return errors;        }        var time = value.getTime();        if (this.minValue && time < this.minValue.getTime()) {            errors.push(String.format(this.minText, this.formatDate(this.minValue)));        }        if (this.maxValue && time > this.maxValue.getTime()) {            errors.push(String.format(this.maxText, this.formatDate(this.maxValue)));        }        if (this.disabledDays) {            var day = value.getDay();            for(var i = 0; i < this.disabledDays.length; i++) {                if (day === this.disabledDays[i]) {                    errors.push(this.disabledDaysText);                    break;                }            }        }        var fvalue = this.formatDate(value);        if (this.disabledDatesRE && this.disabledDatesRE.test(fvalue)) {            errors.push(String.format(this.disabledDatesText, fvalue));        }        return errors;    }});Ext.ux.DateTimeMenu = Ext.extend(Ext.menu.DateMenu, {	initComponent : function(){        this.on('beforeshow', this.onBeforeShow, this);        if(this.strict = (Ext.isIE7 && Ext.isStrict)){            this.on('show', this.onShow, this, {single: true, delay: 20});        }        Ext.apply(this, {            plain: true,            showSeparator: false,            items: this.picker = new Ext.ux.DateTimePicker(Ext.applyIf({                internalRender: this.strict || !Ext.isIE,                ctCls: 'x-menu-date-item',                id: this.pickerId,                showToday:true            }, this.initialConfig))        });        this.picker.purgeListeners();        Ext.menu.DateMenu.superclass.initComponent.call(this);        /**         * @event select         * Fires when a date is selected from the {@link #picker Ext.DatePicker}         * @param {DatePicker} picker The {@link #picker Ext.DatePicker}         * @param {Date} date The selected date         */        this.relayEvents(this.picker, ['select']);        this.on('show', this.picker.focus, this.picker);        this.on('select', this.menuHide, this);        if(this.handler){            this.on('select', this.handler, this.scope || this);        }    },    onRender:function(){    	Ext.ux.DateTimeMenu.superclass.onRender.apply(this, arguments);    	if (Ext.isIE) {    		this.el.dom.style.height = "227px";    	}    }});Ext.ux.DateTimePicker = Ext.extend(Ext.DatePicker, {	setValue : function(value){        this.value = value;        this.update(this.value);    },    initComponent : function(){        Ext.DatePicker.superclass.initComponent.call(this);        this.hourEl = document.createElement("SELECT");				this.minuteEl = document.createElement("SELECT");				this.secondEl = document.createElement("SELECT");								this.hourEl.style.visibility="visible";				this.minuteEl.style.visibility="visible";				this.secondEl.style.visibility="visible";        this.value = this.value ? this.value : new Date();        this.addEvents(            /**             * @event select             * Fires when a date is selected             * @param {DatePicker} this DatePicker             * @param {Date} date The selected date             */            'select'        );        if(this.handler){            this.on('select', this.handler,  this.scope || this);        }        this.initDisabledDays();    },    handleDateClick : function(e, t){        e.stopEvent();        if(!this.disabled && t.dateValue && !Ext.fly(t.parentNode).hasClass('x-date-disabled')){            this.cancelFocus = this.focusOnSelect === false;            var dt = new Date(t.dateValue);			dt.setHours(this.hourEl.options[this.hourEl.selectedIndex].value);			dt.setMinutes(this.minuteEl.options[this.minuteEl.selectedIndex].value);			dt.setSeconds(this.secondEl.options[this.secondEl.selectedIndex].value);            this.setValue(dt);            delete this.cancelFocus;            this.fireEvent('select', this, this.value);        }    },    selectToday : function(){		this.value.setHours(this.hourEl.options[this.hourEl.selectedIndex].value);		this.value.setMinutes(this.minuteEl.options[this.minuteEl.selectedIndex].value);		this.value.setSeconds(this.secondEl.options[this.secondEl.selectedIndex].value);		this.fireEvent('select', this, this.value);    },    update : function(date, forceRefresh){        if(this.rendered){    		if (this.el && this.activeDate) {				this.hourEl.options[date.getHours()].selected=true;				this.minuteEl.options[date.getMinutes()].selected=true;				this.secondEl.options[date.getSeconds()].selected=true;			}    		            var vd = this.activeDate, vis = this.isVisible();            this.activeDate = date;            if(!forceRefresh && vd && this.el){                var t = date.clearTime(true).getTime();                if(vd.getMonth() == date.getMonth() && vd.getFullYear() == date.getFullYear()){                    this.cells.removeClass('x-date-selected');                    this.cells.each(function(c){                       if(c.dom.firstChild.dateValue == t){                           c.addClass('x-date-selected');                           if(vis && !this.cancelFocus){                               Ext.fly(c.dom.firstChild).focus(50);                           }                           return false;                       }                    }, this);                    return;                }            }            var days = date.getDaysInMonth(),                firstOfMonth = date.getFirstDateOfMonth(),                startingPos = firstOfMonth.getDay()-this.startDay;            if(startingPos < 0){                startingPos += 7;            }            days += startingPos;            var pm = date.add('mo', -1),                prevStart = pm.getDaysInMonth()-startingPos,                cells = this.cells.elements,                textEls = this.textNodes,                // convert everything to numbers so it's fast                d = (new Date(pm.getFullYear(), pm.getMonth(), prevStart, this.initHour)),                today = new Date().clearTime().getTime(),                sel = date.clearTime(true).getTime(),                min = this.minDate ? this.minDate : Number.NEGATIVE_INFINITY,                max = this.maxDate ? this.maxDate : Number.POSITIVE_INFINITY,                ddMatch = this.disabledDatesRE,                ddText = this.disabledDatesText,                ddays = this.disabledDays ? this.disabledDays.join('') : false,                ddaysText = this.disabledDaysText,                format = this.format;            if(this.showToday){                var td = new Date(),                    disable = ((ddMatch && format && ddMatch.test(td.dateFormat(format))) ||                    (ddays && ddays.indexOf(td.getDay()) != -1));                if(!this.disabled){                    this.todayBtn.setDisabled(disable);                    this.todayKeyListener[disable ? 'disable' : 'enable']();                }            }            var setCellClass = function(cal, cell){                cell.title = '';                var t = d.clearTime().getTime();                cell.firstChild.dateValue = t;                if(t == today){                    cell.className += ' x-date-today';                    cell.title = cal.todayText;                }                if(t == sel){                    cell.className += ' x-date-selected';                    if(vis){                        Ext.fly(cell.firstChild).focus(50);                    }                }                // disabling                if(t < min) {                    cell.className = ' x-date-disabled';                    cell.title = cal.minText;                    return;                }                if(t > max) {                    cell.className = ' x-date-disabled';                    cell.title = cal.maxText;                    return;                }                if(ddays){                    if(ddays.indexOf(d.getDay()) != -1){                        cell.title = ddaysText;                        cell.className = ' x-date-disabled';                    }                }                if(ddMatch && format){                    var fvalue = d.dateFormat(format);                    if(ddMatch.test(fvalue)){                        cell.title = ddText.replace('%0', fvalue);                        cell.className = ' x-date-disabled';                    }                }            };            var i = 0;            for(; i < startingPos; i++) {                textEls[i].innerHTML = (++prevStart);                d.setDate(d.getDate()+1);                cells[i].className = 'x-date-prevday';                setCellClass(this, cells[i]);            }            for(; i < days; i++){                var intDay = i - startingPos + 1;                textEls[i].innerHTML = (intDay);                d.setDate(d.getDate()+1);                cells[i].className = 'x-date-active';                setCellClass(this, cells[i]);            }            var extraDays = 0;            for(; i < 42; i++) {                 textEls[i].innerHTML = (++extraDays);                 d.setDate(d.getDate()+1);                 cells[i].className = 'x-date-nextday';                 setCellClass(this, cells[i]);            }            this.mbtn.setText(this.monthNames[date.getMonth()] + ' ' + date.getFullYear());            if(!this.internalRender){                var main = this.el.dom.firstChild,                    w = main.offsetWidth;                this.el.setWidth(w + this.el.getBorderWidth('lr'));                Ext.fly(main).setWidth(w);                this.internalRender = true;                // opera does not respect the auto grow header center column                // then, after it gets a width opera refuses to recalculate                // without a second pass                if(Ext.isOpera && !this.secondPass){                    main.rows[0].cells[1].style.width = (w - (main.rows[0].cells[0].offsetWidth+main.rows[0].cells[2].offsetWidth)) + 'px';                    this.secondPass = true;                    this.update.defer(10, this, [date]);                }            }        }    },	onRender:function(container, position){		Ext.ux.DateTimePicker.superclass.onRender.apply(this, arguments);		//重置按钮文本		this.todayBtn.setText(this.okText);		this.todayBtn.setTooltip('');				//设置时、分、秒下拉框		var row = document.createElement('tr');		var td = document.createElement('td');		td.colSpan="7";		td.align="center";		var hmTb = document.createElement('table');		var hmBody = document.createElement('tbody');		var hmTr = document.createElement('tr');				var hmHoursTd = document.createElement('td');		hmHoursTd.className = "x-date-hour";				hmHoursTd.appendChild(this.hourEl);		for(var i=0;i<24;i++){			var houroption = document.createElement("OPTION");			houroption.value=i;			houroption.text=i;			this.hourEl.options.add(houroption);		}		this.hourEl.options[this.value.getHours()].selected=true;				hmTr.appendChild(hmHoursTd);				var hmSepTd = document.createElement('td');		hmSepTd.appendChild(document.createTextNode(":"));		hmTr.appendChild(hmSepTd);				var hmMinuteTd = document.createElement('td');		hmMinuteTd.className = "x-date-minute";		hmMinuteTd.appendChild(this.minuteEl);		for(var i=0;i<60;i++){			var minuteOption = document.createElement("OPTION");			minuteOption.value=i;			minuteOption.text=i;			this.minuteEl.options.add(minuteOption);		}		this.minuteEl.options[this.value.getMinutes()].selected=true;			hmTr.appendChild(hmMinuteTd);				hmSepTd = document.createElement('td');		hmSepTd.appendChild(document.createTextNode(":"));		hmTr.appendChild(hmSepTd);				var hmSecondTd = document.createElement('td');		hmSecondTd.className = "x-date-second";		hmSecondTd.appendChild(this.secondEl);		for(var i=0;i<60;i++){			var minuteOption = document.createElement("OPTION");			minuteOption.value=i;			minuteOption.text=i;			this.secondEl.options.add(minuteOption);		}		this.secondEl.options[this.value.getSeconds()].selected=true;			hmTr.appendChild(hmSecondTd);				hmBody.appendChild(hmTr);		hmTb.appendChild(hmBody);				td.appendChild(hmTb);		row.appendChild(td);				//添加至确定按钮之前		this.el.dom.firstChild.firstChild.insertBefore(row, this.el.dom.firstChild.firstChild.lastChild);	}});Ext.reg('datetimefield', Ext.ux.DateTimeField);

网上找的，怕以后用就存下来，在extjs3中可以用，还有少许问题，但不影响使用

var datetime1 = new Ext.ux.DateTimeField({