ASP.NET中为TextBox中添加calendar.js示例代码

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1.在工程文件下面新建文件夹"js",然后向其中添加JavaScript.js新建项，重命名为calendar.js。

2.向calendar.js中写入代码，
代码如下:

var cal; 
var isFocus=false; //是否为焦点 
//function SelectDate(obj,strFormat) //两个参数改为只传一个 
function SelectDate(obj) 
{ 
var date = new Date(); 
var by = date.getFullYear()-80; //最小值 → 80 年前 
var ey = date.getFullYear()+20; //最大值 → 20 年后 
cal = (cal==null) ? new Calendar(by, ey, 0) : cal; //初始化为中文版，1为英文版 
//cal.dateFormatStyle = strFormat; // 默认显示格式为:yyyy-MM-dd ,还可显示 yyyy/MM/dd 
cal.show(obj); 
} 
/**//* 返回日期 */ 
String.prototype.toDate = function(style){ 
var y = this.substring(style.indexOf('y'),style.lastIndexOf('y')+1);//年 
var m = this.substring(style.indexOf('M'),style.lastIndexOf('M')+1);//月 
var d = this.substring(style.indexOf('d'),style.lastIndexOf('d')+1);//日 
if(isNaN(y)) y = new Date().getFullYear(); 
if(isNaN(m)) m = new Date().getMonth(); 
if(isNaN(d)) d = new Date().getDate(); 
var dt ; 
eval ("dt = new Date('"+ y+"', '"+(m-1)+"','"+ d +"')"); 
return dt; 
} 
/**//* 格式化日期 */ 
Date.prototype.format = function(style){ 
var o = { 
"M+" : this.getMonth() + 1, //month 
"d+" : this.getDate(), //day 
"h+" : this.getHours(), //hour 
"m+" : this.getMinutes(), //minute 
"s+" : this.getSeconds(), //second 
"w+" : "天一二三四五六".charAt(this.getDay()), //week 
"q+" : Math.floor((this.getMonth() + 3) / 3), //quarter 
"S" : this.getMilliseconds() //millisecond 
} 
if(/(y+)/.test(style)){ 
style = style.replace(RegExp.$1, 
(this.getFullYear() + "").substr(4 - RegExp.$1.length)); 
} 
for(var k in o){ 
if(new RegExp("("+ k +")").test(style)){ 
style = style.replace(RegExp.$1, 
RegExp.$1.length == 1 ? o[k] : 
("00" + o[k]).substr(("" + o[k]).length)); 
} 
} 
return style; 
}; 

/**//* 
* 日历类 
* @param beginYear 2009 
* @param endYear 2015 
* @param lang 0(中文)|1(英语) 可自由扩充 
* @param dateFormatStyle "yyyy-MM-dd"; 
*/ 
function Calendar(beginYear, endYear, lang, dateFormatStyle){ 
this.beginYear = 2009; 
this.endYear = 2015; 
this.lang = 0; //0(中文) | 1(英文) 
this.dateFormatStyle = "yyyy-MM-dd"; 

if (beginYear != null && endYear != null){ 
this.beginYear = beginYear; 
this.endYear = endYear; 
} 
if (lang != null){ 
this.lang = lang 
} 

if (dateFormatStyle != null){ 
this.dateFormatStyle = dateFormatStyle 
} 

this.dateControl = null; 
this.panel = this.getElementById("calendarPanel"); 
this.container = this.getElementById("ContainerPanel"); 
this.form = null; 

this.date = new Date(); 
this.year = this.date.getFullYear(); 
this.month = this.date.getMonth(); 


this.colors = { 
"cur_word" : "#FFFFFF", //当日日期文字颜色 
"cur_bg" : "#83A6F4", //当日日期单元格背影色 
"sel_bg" : "#FFCCCC", //已被选择的日期单元格背影色 
"sun_word" : "#FF0000", //星期天文字颜色 
"sat_word" : "#0000FF", //星期六文字颜色 
"td_word_light" : "#333333", //单元格文字颜色 
"td_word_dark" : "#CCCCCC", //单元格文字暗色 
"td_bg_out" : "#EFEFEF", //单元格背影色 
"td_bg_over" : "#FFCC00", //单元格背影色 
"tr_word" : "#FFFFFF", //日历头文字颜色 
"tr_bg" : "#666666", //日历头背影色 
"input_border" : "#CCCCCC", //input控件的边框颜色 
"input_bg" : "#EFEFEF" //input控件的背影色 
} 

this.draw(); 
this.bindYear(); 
this.bindMonth(); 
this.changeSelect(); 
this.bindData(); 
} 

/**//* 
* 日历类属性（语言包，可自由扩展） 
*/ 
Calendar.language ={ 
"year" : [[""], [""]], 
"months" : [["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"], 
["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"] 
], 
"weeks" : [["日","一","二","三","四","五","六"], 
["SUN","MON","TUR","WED","THU","FRI","SAT"] 
], 
"clear" : [["清空"], ["CLS"]], 
"today" : [["今天"], ["TODAY"]], 
"close" : [["关闭"], ["CLOSE"]] 
} 

Calendar.prototype.draw = function(){ 
calendar = this; 

var mvAry = []; 
mvAry[mvAry.length] = ' <div name="calendarForm" style="margin: 0px;">'; 
mvAry[mvAry.length] = ' <table width="100%" border="0" cellpadding="0" cellspacing="1">'; 
mvAry[mvAry.length] = ' <tr>'; 
mvAry[mvAry.length] = ' <th align="left" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="prevMonth" type="button" id="prevMonth" value="<" /></th>'; 
mvAry[mvAry.length] = ' <th align="center"width="98%"><select name="calendarYear" id="calendarYear" style="width:48%;font-size:12px;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;width:48%;"></select></th>'; 
mvAry[mvAry.length] = ' <th align="right" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="nextMonth" type="button" id="nextMonth" value=">" /></th>'; 
mvAry[mvAry.length] = ' </tr>'; 
mvAry[mvAry.length] = ' </table>'; 
mvAry[mvAry.length] = ' <table id="calendarTable" width="100%" style="border:0px solid #CCCCCC;background-color:#FFFFFF" border="0" cellpadding="3" cellspacing="1">'; 
mvAry[mvAry.length] = ' <tr>'; 
for(var i = 0; i < 7; i++){ 
mvAry[mvAry.length] = ' <th style="font-weight:normal;background-color:' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language["weeks"][this.lang][i] + '</th>'; 
} 
mvAry[mvAry.length] = ' </tr>'; 
for(var i = 0; i < 6;i++){ 
mvAry[mvAry.length] = ' <tr align="center">'; 
for(var j = 0; j < 7; j++){ 
if (j == 0){ 
mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sun_word"] + ';"></td>'; 
} else if(j == 6){ 
mvAry[mvAry.length] = ' <td style="cursor:default;color:' + calendar.colors["sat_word"] + ';"></td>'; 
} else{ 
mvAry[mvAry.length] = ' <td style="cursor:default;"></td>'; 
} 
} 
mvAry[mvAry.length] = ' </tr>'; 
} 
mvAry[mvAry.length] = ' <tr style="background-color:' + calendar.colors["input_bg"] + ';">'; 
mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
mvAry[mvAry.length] = ' <th colspan="3"><input name="calendarToday" type="button" id="calendarToday" value="' + Calendar.language["today"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
mvAry[mvAry.length] = ' <th colspan="2"><input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
mvAry[mvAry.length] = ' </tr>'; 
mvAry[mvAry.length] = ' </table>'; 
mvAry[mvAry.length] = ' </div>'; 
this.panel.innerHTML = mvAry.join(""); 

var obj = this.getElementById("prevMonth"); 
obj.onclick = function (){calendar.goPrevMonth(calendar);} 
obj.onblur = function (){calendar.onblur();} 
this.prevMonth= obj; 

obj = this.getElementById("nextMonth"); 
obj.onclick = function (){calendar.goNextMonth(calendar);} 
obj.onblur = function (){calendar.onblur();} 
this.nextMonth= obj; 


obj = this.getElementById("calendarClear"); 
obj.onclick = function (){calendar.dateControl.value = "";calendar.hide();} 
this.calendarClear = obj; 

obj = this.getElementById("calendarClose"); 
obj.onclick = function (){calendar.hide();} 
this.calendarClose = obj; 

obj = this.getElementById("calendarYear"); 
obj.onchange = function (){calendar.update(calendar);} 
obj.onblur = function (){calendar.onblur();} 
this.calendarYear = obj; 

obj = this.getElementById("calendarMonth"); 
with(obj) 
{ 
onchange = function (){calendar.update(calendar);} 
onblur = function (){calendar.onblur();} 
}this.calendarMonth = obj; 

obj = this.getElementById("calendarToday"); 
obj.onclick = function (){ 
var today = new Date(); 
calendar.date = today; 
calendar.year = today.getFullYear(); 
calendar.month = today.getMonth(); 
calendar.changeSelect(); 
calendar.bindData(); 
calendar.dateControl.value = today.format(calendar.dateFormatStyle); 
calendar.hide(); 
} 
this.calendarToday = obj; 
} 

//年份下拉框绑定数据 
Calendar.prototype.bindYear = function(){ 
var cy = this.calendarYear; 
cy.length = 0; 
for (var i = this.beginYear; i <= this.endYear; i++){ 
cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i); 
} 
} 

//月份下拉框绑定数据 
Calendar.prototype.bindMonth = function(){ 
var cm = this.calendarMonth; 
cm.length = 0; 
for (var i = 0; i < 12; i++){ 
cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i); 
} 
} 

//向前一月 
Calendar.prototype.goPrevMonth = function(e){ 
if (this.year == this.beginYear && this.month == 0){return;} 
this.month--; 
if (this.month == -1){ 
this.year--; 
this.month = 11; 
} 
this.date = new Date(this.year, this.month, 1); 
this.changeSelect(); 
this.bindData(); 
} 

//向后一月 
Calendar.prototype.goNextMonth = function(e){ 
if (this.year == this.endYear && this.month == 11){return;} 
this.month++; 
if (this.month == 12){ 
this.year++; 
this.month = 0; 
} 
this.date = new Date(this.year, this.month, 1); 
this.changeSelect(); 
this.bindData(); 
} 

//改变SELECT选中状态 
Calendar.prototype.changeSelect = function(){ 
var cy = this.calendarYear; 
var cm = this.calendarMonth; 
for (var i= 0; i < cy.length; i++){ 
if (cy.options[i].value == this.date.getFullYear()){ 
cy[i].selected = true; 
break; 
} 
} 
for (var i= 0; i < cm.length; i++){ 
if (cm.options[i].value == this.date.getMonth()){ 
cm[i].selected = true; 
break; 
} 
} 
} 

//更新年、月 
Calendar.prototype.update = function (e){ 
this.year = e.calendarYear.options[e.calendarYear.selectedIndex].value; 
this.month = e.calendarMonth.options[e.calendarMonth.selectedIndex].value; 
this.date = new Date(this.year, this.month, 1); 
this.changeSelect(); 
this.bindData(); 
} 

//绑定数据到月视图 
Calendar.prototype.bindData = function (){ 
var calendar = this; 
var dateArray = this.getMonthViewArray(this.date.getFullYear(), this.date.getMonth()); 
var tds = this.getElementById("calendarTable").getElementsByTagName("td"); 
for(var i = 0; i < tds.length; i++){ 
tds[i].style.backgroundColor = calendar.colors["td_bg_out"]; 
tds[i].onclick = function () {return;} 
tds[i].onmouseover = function () {return;} 
tds[i].onmouseout = function () {return;} 
if (i > dateArray.length - 1) break; 
tds[i].innerHTML = dateArray[i]; 
if (dateArray[i] != " "){ 
tds[i].onclick = function () { 
if (calendar.dateControl != null){ 
calendar.dateControl.value = new Date(calendar.date.getFullYear(), 
calendar.date.getMonth(), 
this.innerHTML).format(calendar.dateFormatStyle); 
} 
calendar.hide(); 
} 
tds[i].onmouseover = function () { 
this.style.backgroundColor = calendar.colors["td_bg_over"]; 
} 
tds[i].onmouseout = function () { 
this.style.backgroundColor = calendar.colors["td_bg_out"]; 
} 
if (new Date().format(calendar.dateFormatStyle) == 
new Date(calendar.date.getFullYear(), 
calendar.date.getMonth(), 
dateArray[i]).format(calendar.dateFormatStyle)) { 
tds[i].style.backgroundColor = calendar.colors["cur_bg"]; 
tds[i].onmouseover = function () { 
this.style.backgroundColor = calendar.colors["td_bg_over"]; 
} 
tds[i].onmouseout = function () { 
this.style.backgroundColor = calendar.colors["cur_bg"]; 
} 
}//end if 

//设置已被选择的日期单元格背影色 
if (calendar.dateControl != null && calendar.dateControl.value == new Date(calendar.date.getFullYear(), 
calendar.date.getMonth(), 
dateArray[i]).format(calendar.dateFormatStyle)) { 
tds[i].style.backgroundColor = calendar.colors["sel_bg"]; 
tds[i].onmouseover = function () { 
this.style.backgroundColor = calendar.colors["td_bg_over"]; 
} 
tds[i].onmouseout = function () { 
this.style.backgroundColor = calendar.colors["sel_bg"]; 
} 
} 
} 
} 
} 

//根据年、月得到月视图数据(数组形式) 
Calendar.prototype.getMonthViewArray = function (y, m) { 
var mvArray = []; 
var dayOfFirstDay = new Date(y, m, 1).getDay(); 
var daysOfMonth = new Date(y, m + 1, 0).getDate(); 
for (var i = 0; i < 42; i++) { 
mvArray[i] = " "; 
} 
for (var i = 0; i < daysOfMonth; i++){ 
mvArray[i + dayOfFirstDay] = i + 1; 
} 
return mvArray; 
} 

//扩展 document.getElementById(id) 多浏览器兼容性 from meizz tree source 
Calendar.prototype.getElementById = function(id){ 
if (typeof(id) != "string" || id == "") return null; 
if (document.getElementById) return document.getElementById(id); 
if (document.all) return document.all(id); 
try {return eval(id);} catch(e){ return null;} 
} 

//扩展 object.getElementsByTagName(tagName) 
Calendar.prototype.getElementsByTagName = function(object, tagName){ 
if (document.getElementsByTagName) return document.getElementsByTagName(tagName); 
if (document.all) return document.all.tags(tagName); 
} 

//取得HTML控件绝对位置 
Calendar.prototype.getAbsPoint = function (e){ 
var x = e.offsetLeft; 
var y = e.offsetTop; 
while(e = e.offsetParent){ 
x += e.offsetLeft; 
y += e.offsetTop; 
} 
return {"x": x, "y": y}; 
} 

//显示日历 
Calendar.prototype.show = function (dateObj, popControl) { 
if (dateObj == null){ 
throw new Error("arguments[0] is necessary") 
} 
this.dateControl = dateObj; 

this.date = (dateObj.value.length > 0) ? new Date(dateObj.value.toDate(this.dateFormatStyle)) : new Date() ;//若为空则显示当前月份 
this.year = this.date.getFullYear(); 
this.month = this.date.getMonth(); 
this.changeSelect(); 
this.bindData(); 
if (popControl == null){ 
popControl = dateObj; 
} 
var xy = this.getAbsPoint(popControl); 
this.panel.style.left = xy.x -25 + "px"; 
this.panel.style.top = (xy.y + dateObj.offsetHeight) + "px"; 

this.panel.style.display = ""; 
this.container.style.display = ""; 

dateObj.onblur = function(){calendar.onblur();} 
this.container.onmouseover = function(){isFocus=true;} 
this.container.onmouseout = function(){isFocus=false;} 
} 

//隐藏日历 
Calendar.prototype.hide = function() { 
this.panel.style.display = "none"; 
this.container.style.display = "none"; 
isFocus=false; 
} 

//焦点转移时隐藏日历 
Calendar.prototype.onblur = function() { 
if(!isFocus){this.hide();} 
} 
document.write('<div id="ContainerPanel" style="display:none;"><div id="calendarPanel" style="position: absolute;display: none;z-index: 9999;'); 
document.write('background-color: #FFFFFF;border: 1px solid #CCCCCC;width:175px;font-size:12px;margin-left:25px;"></div>'); 
if(document.all) 
{ 
document.write('<iframe style="position:absolute;z-index:2000;width:expression(this.previousSibling.offsetWidth);'); 
document.write('height:expression(this.previousSibling.offsetHeight);'); 
document.write('left:expression(this.previousSibling.offsetLeft);top:expression(this.previousSibling.offsetTop);'); 
document.write('display:expression(this.previousSibling.style.display);" scrolling="no" frameborder="no"></iframe>'); 
} 
document.write('</div>'); 
 
3.保存文件后，即完成了js日历控件的编写。 

4.在相应需要日历控件的源处写在head标签下面写 
 代码如下:

<script type="text/javascript" src="../js/calendar.js"></script> 
 
其中，src是你JavaScript的位置 

5.所有填写日期的TextBox，加这两个属性：ReadOnly="True" onclick="SelectDate(this)"
            
            


           
                
                                                

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