求JavaScript验证表单数据的代码！如：验证日期的
求JavaScript验证表单数据的代码！如：验证日期的<body><form><asp:TextBoxID="thedate"runat="server"onblur=...
求JavaScript验证表单数据的代码！如：验证日期的 <body> <form> <asp:TextBox ID="thedate" runat="server" onblur=“OnLostFocus()” ></asp:TextBox> </from> </body> <script type="javascript"> function OnLostFocus() { 我要此处代码 } </script> 谢谢~！、 Email:Anysend@ vip.qq.com
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你可以直接用日期选择器。见下代码： <head> <script language=javascript> var lastSel = null; function change() { var sel = document.getElementsByTagName("SELECT"); var obj = eval("document.all."+document.all.select.value); obj.style.display = ''; if(lastSel != null) lastSel.style.display = "none"; lastSel = obj; } </script> <script type="text/javascript"> function HS_DateAdd(interval,number,date){ number = parseInt(number); if (typeof(date)=="string"){var date = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2])} if (typeof(date)=="object"){var date = date} switch(interval){ case "y":return new Date(date.getFullYear()+number,date.getMonth(),date.getDate()); break; case "m":return new Date(date.getFullYear(),date.getMonth()+number,checkDate(date.getFullYear(),date.getMonth()+number,date.getDate())); break; case "d":return new Date(date.getFullYear(),date.getMonth(),date.getDate()+number); break; case "w":return new Date(date.getFullYear(),date.getMonth(),7*number+date.getDate()); break; } } function checkDate(year,month,date){ var enddate = ["31","28","31","30","31","30","31","31","30","31","30","31"]; var returnDate = ""; if (year%4==0){enddate[1]="29"} if (date>enddate[month]){returnDate = enddate[month]}else{returnDate = date} return returnDate; } function WeekDay(date){ var theDate; if (typeof(date)=="string"){theDate = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2]);} if (typeof(date)=="object"){theDate = date} return theDate.getDay(); } function HS_calender(){ var lis = ""; var style = ""; /*可以把下面的css剪切出去独立一个css文件webjx.com*/ style +="<style type='text/css'>"; style +=".calender { width:170px; height:auto; font-size:12px; margin-right:14px; background:url(calenderbg.gif) no-repeat right center #fff; border:1px solid #397EAE; padding:1px}"; style +=".calender ul {list-style-type:none; margin:0; padding:0;}"; style +=".calender .day { background-color:#EDF5FF; height:20px;}"; style +=".calender .day li,.calender .date li{ float:left; width:14%; height:20px; line-height:20px; text-align:center}"; style +=".calender li a { text-decoration:none; font-family:Tahoma; font-size:11px; color:#333}"; style +=".calender li a:hover { color:#f30; text-decoration:underline}"; style +=".calender li a.hasArticle {font-weight:bold; color:#f60 !important}"; style +=".lastMonthDate, .nextMonthDate {color:#bbb;font-size:11px}"; style +=".selectThisYear a, .selectThisMonth a{text-decoration:none; margin:0 2px; color:#000; font-weight:bold}"; style +=".calender .LastMonth, .calender .NextMonth{ text-decoration:none; color:#000; font-size:18px; font-weight:bold; line-height:16px;}"; style +=".calender .LastMonth { float:left;}"; style +=".calender .NextMonth { float:right;}"; style +=".calenderBody {clear:both}"; style +=".calenderTitle {text-align:center;height:20px; line-height:20px; clear:both}"; style +=".today { background-color:#ffffaa;border:1px solid #f60; padding:2px}"; style +=".today a { color:#f30; }"; style +=".calenderBottom {clear:both; border-top:1px solid #ddd; padding: 3px 0; text-align:left}"; style +=".calenderBottom a {text-decoration:none; margin:2px !important; font-weight:bold; color:#000}"; style +=".calenderBottom a.closeCalender{float:right}"; style +=".closeCalenderBox {float:right; border:1px solid #000; background:#fff; font-size:9px; width:11px; height:11px; line-height:11px; text-align:center;overflow:hidden; font-weight:normal !important}"; style +="</style>"; var now; if (typeof(arguments[0])=="string"){ selectDate = arguments[0].split("-"); var year = selectDate[0]; var month = parseInt(selectDate[1])-1+""; var date = selectDate[2]; now = new Date(year,month,date); }else if (typeof(arguments[0])=="object"){ now = arguments[0]; } var lastMonthEndDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+now.getMonth()+"-01").getDate(); var lastMonthDate = WeekDay(now.getFullYear()+"-"+now.getMonth()+"-01"); var thisMonthLastDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+(parseInt(now.getMonth())+1).toString()+"-01"); var thisMonthEndDate = thisMonthLastDate.getDate(); var thisMonthEndDay = thisMonthLastDate.getDay(); var todayObj = new Date(); today = todayObj.getFullYear()+"-"+todayObj.getMonth()+"-"+todayObj.getDate(); for (i=0; i<lastMonthDate; i++){ // Last Month's Date lis = "<li class='lastMonthDate'>"+lastMonthEndDate+"</li>" + lis; lastMonthEndDate--; } for (i=1; i<=thisMonthEndDate; i++){ // Current Month's Date if(today == now.getFullYear()+"-"+now.getMonth()+"-"+i){ var todayString = now.getFullYear()+"-"+(parseInt(now.getMonth())+1).toString()+"-"+i; lis += "<li><a href=javascript:void(0) class='today' onclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>"; }else{ lis += "<li><a href=javascript:void(0) onclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>"; } } var j=1; for (i=thisMonthEndDay; i<6; i++){ // Next Month's Date lis += "<li class='nextMonthDate'>"+j+"</li>"; j++; } lis += style; var CalenderTitle = "<a href='javascript:void(0)' class='NextMonth' onclick=HS_calender(HS_DateAdd('m',1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Next Month'>»</a>"; CalenderTitle += "<a href='javascript:void(0)' class='LastMonth' onclick=HS_calender(HS_DateAdd('m',-1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Previous Month'>«</a>"; CalenderTitle += "<span class='selectThisYear'><a href='javascript:void(0)' onclick='CalenderselectYear(this)' title='Click here to select other year' >"+now.getFullYear()+"</a></span>年<span class='selectThisMonth'><a href='javascript:void(0)' onclick='CalenderselectMonth(this)' title='Click here to select other month'>"+(parseInt(now.getMonth())+1).toString()+"</a></span>月"; if (arguments.length>1){ arguments[1].parentNode.parentNode.getElementsByTagName("ul")[1].innerHTML = lis; arguments[1].parentNode.innerHTML = CalenderTitle; }else{ var CalenderBox = style+"<div class='calender'><div class='calenderTitle'>"+CalenderTitle+"</div><div class='calenderBody'><ul class='day'><li>日</li><li>一</li><li>二</li><li>三</li><li>四</li><li>五</li><li>六</li></ul><ul class='date' id='thisMonthDate'>"+lis+"</ul></div><div class='calenderBottom'><a href='javascript:void(0)' class='closeCalender' onclick='closeCalender(this)'>×</a><span><span><a href=javascript:void(0) onclick='_selectThisDay(this)' title='"+todayString+"'>Today</a></span></span></div></div>"; return CalenderBox; } } function _selectThisDay(d){ var boxObj = d.parentNode.parentNode.parentNode.parentNode.parentNode; boxObj.targetObj.value = d.title; boxObj.parentNode.removeChild(boxObj); } function closeCalender(d){ var boxObj = d.parentNode.parentNode.parentNode; boxObj.parentNode.removeChild(boxObj); } function CalenderselectYear(obj){ var opt = ""; var thisYear = obj.innerHTML; for (i=1970; i<=2020; i++){ if (i==thisYear){ opt += "<option value="+i+" selected>"+i+"</option>"; }else{ opt += "<option value="+i+">"+i+"</option>"; } } opt = "<select onblur='selectThisYear(this)' onchange='selectThisYear(this)' style='font-size:11px'>"+opt+"</select>"; obj.parentNode.innerHTML = opt; } function selectThisYear(obj){ HS_calender(obj.value+"-"+obj.parentNode.parentNode.getElementsByTagName("span")[1].getElementsByTagName("a")[0].innerHTML+"-1",obj.parentNode); } function CalenderselectMonth(obj){ var opt = ""; var thisMonth = obj.innerHTML; for (i=1; i<=12; i++){ if (i==thisMonth){ opt += "<option value="+i+" selected>"+i+"</option>"; }else{ opt += "<option value="+i+">"+i+"</option>"; } } opt = "<select onblur='selectThisMonth(this)' onchange='selectThisMonth(this)' style='font-size:11px'>"+opt+"</select>"; obj.parentNode.innerHTML = opt; } function selectThisMonth(obj){ HS_calender(obj.parentNode.parentNode.getElementsByTagName("span")[0].getElementsByTagName("a")[0].innerHTML+"-"+obj.value+"-1",obj.parentNode); } function HS_setDate(inputObj){ var calenderObj = document.createElement("span"); calenderObj.innerHTML = HS_calender(new Date()); calenderObj.style.position = "absolute"; calenderObj.targetObj = inputObj; inputObj.parentNode.insertBefore(calenderObj,inputObj.nextSibling); } </script> </head> <body> <form> <asp:TextBox ID="thedate" runat="server" onfocus="HS_setDate(this)" ></asp:TextBox> </from> </body>
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function checkDate(obj) //判断日期格式是不是符合 { var strDate=thedate.value; re=/\d{4}\/\d{2}\/\d{2}/g if(re.test(strDate)) //判断日期格式符合YYYY/MM/DD标准 { var DateArray=strDate.split("/"); var dateElement=new Date(DateArray[0],parseInt(DateArray[1])-1,DateArray[2]); if (!((dateElement.getFullYear()==parseInt(DateArray[0]))&&((dateElement.getMonth ()+1)==parseInt(DateArray[1]))&&(dateElement.getDate()==parseInt(DateArray [2])))) //判断日期逻辑 { alert("不符合时间逻辑") obj.value=''; } else { alert("正确") } } else { alert("格式输入错误") thedate.value=''; } }
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