根据我的要求,允许用户从页面上提供的键盘输入数字。所以输入字段是只读的。
现在我试图得到的是,当用户开始输入月份时,其他文本应该保留在文本字段中,直到用户输入为止。例如05 / DD / YYYY喜欢这个。因此,文本将被隐藏。
如果我放置了占位符,那么当用户开始输入数字时,所有文字都会消失。我不希望这样。所以我在单独span tag
中采用了“MM / DD / YYYY”文本。
var Memory = "0", // initialise memory variable
Current = "", // and value of Display ("current" value)
Operation = 0, // Records code for eg * / etc.
MAXLENGTH = 8; // maximum number of digits before decimal!
function format(input, format, sep) {
var output = "";
var idx = 0;
for (var i = 0; i < format.length && idx < input.length; i++) {
output += input.substr(idx, format[i]);
if (idx + format[i] < input.length) output += sep;
idx += format[i];
}
output += input.substr(idx);
return output;
}
function AddDigit(dig) { //ADD A DIGIT TO DISPLAY (keep as 'Current')
if (Current.indexOf("!") == -1) { //if not already an error
if ((eval(Current) == undefined) &&
(Current.indexOf(".") == -1)) {
Current = dig;
document.calc.display.focus();
} else {
Current = Current + dig;
document.calc.display.focus();
}
Current = Current.toLowerCase(); //FORCE LOWER CASE
} else {
Current = "Hint! Press 'Clear'"; //Help out, if error present.
}
if (Current.length > 0) {
Current = Current.replace(/\D/g, "");
Current = format(Current, [2, 2, 4], "/");
}
document.calc.display.value = Current.substring(0, 10);
document.getElementById("cursor").style.visibility = "hidden";
}
function Clear() { //CLEAR ENTRY
Current = "";
document.calc.display.value = Current;
document.calc.display.focus();
document.getElementById("cursor").style.visibility = "visible";
//setInterval ("cursorAnimation()", 5000);
}
function backspace() {
Current = document.calc.display.value;
var num = Current;
Current = num.slice(0,num.length - 1);
document.calc.display.value = Current;
document.calc.display.focus();
document.getElementById("cursor").style.visibility = "hidden";
}
function cursorAnimation() {
$("#cursor").animate({
opacity: 0
}, "fast", "swing").animate({
opacity: 1
}, "fast", "swing");
}
//--------------------------------------------------------------->
$(document).ready(function() {
document.getElementById("cursor").style.visibility = "visible";
//setInterval ("cursorAnimation()", 1000);
});
.intxt1 {
padding: 16px;
border-radius: 3px;
/* border: 0; */
width: 1017px;
border: 1px solid #000;
font-family: Droid Sans Mono;
background: #fff;
}
.txtplaceholder {
font-family: "Droid Sans Mono";
color: #D7D7D7;
position: relative;
float: left;
left: 219px;
top: 17px;
z-index: 10 !important;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
display: inline-block;
}
#cursor {
position: relative;
z-index: 1;
left: 32px;
top: 2px;
visibility: hidden;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<form Name="calc" method="post">
<div style="position:relative">
<span id="cursor">_</span>
<span class="txtplaceholder">MM/DD/YYYY</span>
<span style="z-index:100">
<input class="intxt1" autocomplete="off" id="pt_dob" name="display" value="" type="text" readonly>
</span>
<button class="cancel-icon" type="reset" onClick="Clear()"></button>
</div>
<div class="num_keypad1" style=" margin-top:19px;">
<!-- Screen and clear key -->
<div class="num_keys">
<!-- operators and other keys -->
<span id="key1" onClick="AddDigit('1')">1</span>
<span id="key2" onClick="AddDigit('2')">2</span>
<span id="key3" onClick="AddDigit('3')">3</span>
<span id="key4" onClick="AddDigit('4')">4</span>
<span id="key5" onClick="AddDigit('5')">5</span>
<span id="key6" onClick="AddDigit('6')">6</span>
<span id="key7" onClick="AddDigit('7')">7</span>
<span id="key8" onClick="AddDigit('8')">8</span>
<span id="key9" onClick="AddDigit('9')">9</span>
<span id="key0" onClick="AddDigit('0')" style="width: 200px;">0</span>
<span id="keyback" class="clear" onClick="backspace()"> <div class="num_xBox">X</div></span>
</div>
</div>
</form>
问题出现如下:
我的数字低于文本“MM / DD / YYYY”。我不知道如何将我的数字放在该文本之上
我应该如何隐藏用户输入的文本并相应地显示其他文本,例如如果用户输入05并显示“05 / DD / YYYY”之类的其他文本,“MM”应隐藏。
有人可以帮助我吗?
注意:使用输入类型=日期或任何其他插件,我可以实现上述功能,但我的要求是不同的。我必须使用HTML,CSS,JS来实现这一点。
答案 0 :(得分:2)
我会为这种事情使用现成的数据选择器,因为它将内置所有错误检查以确保您以正确的格式输入日期。
你这样做的方式,在你进入月份之前,你无法检查这一天是否有效,到那时用户必须退格,这将是一个非常缓慢而笨重的过程,而不是用户友好。
无论如何,如果你坚持使用数字键盘,我就是这样做的。
以下是上述
的一个非常简单的例子
var dateBits = ["D", "D", "M", "M", "Y", "Y", "Y", "Y"],
letters = ["D", "D", "M", "M", "Y", "Y", "Y", "Y"],
input = document.getElementById('pt_dob'),
currentIndex = 0;
function makeDate() {
return dateBits[0] + dateBits[1] + "/" + dateBits[2] + dateBits[3] + "/" + dateBits[4] + dateBits[5] + dateBits[6] + dateBits[7];
}
function AddDigit(number) {
dateBits[currentIndex] = number;
if (currentIndex < 8) {
currentIndex++;
}
input.value = makeDate();
}
function RemoveDigit() {
if (currentIndex > 0) {
currentIndex--;
}
dateBits[currentIndex] = letters[currentIndex];
input.value = makeDate();
}
function Clear() {
for (i = 0; i < letters.length; i++) {
dateBits[i] = letters[i];
}
currentIndex = 0;
input.value = makeDate();
}
input.value = makeDate(); // run this line onload or include this whole script at the bottom of the page to get your input to start with your text
&#13;
.intxt1 {
padding: 16px;
border-radius: 3px;
/* border: 0; */
width: 1017px;
border: 1px solid #000;
font-family: Droid Sans Mono;
background: #fff;
}
#cursor {
position: relative;
z-index: 1;
left: 32px;
top: 2px;
visibility: hidden;
}
.num_keys > span {
display: inline-flex;
width: 2em;
height: 2em;
align-items: center;
justify-content: center;
cursor: pointer;
border: 1px solid black;
}
&#13;
<form Name="calc" method="post">
<div style="position:relative"><span id="cursor">_</span>
<span class="txtplaceholder">MM/DD/YYYY</span><span style="z-index:100"><input class="intxt1" autocomplete="off" id="pt_dob" name="display" value="" type="text" autocomplete="off" readonly></span>
<button class="cancel-icon" type="reset" onClick="Clear(); return false;">clear</button>
</div>
<div class="num_keypad1" style=" margin-top:19px;">
<!-- Screen and clear key -->
<div class="num_keys">
<!-- operators and other keys -->
<span id="key1" onClick="AddDigit('1')">1</span>
<span id="key2" onClick="AddDigit('2')">2</span>
<span id="key3" onClick="AddDigit('3')">3</span>
<span id="key4" onClick="AddDigit('4')">4</span>
<span id="key5" onClick="AddDigit('5')">5</span>
<span id="key6" onClick="AddDigit('6')">6</span>
<span id="key7" onClick="AddDigit('7')">7</span>
<span id="key8" onClick="AddDigit('8')">8</span>
<span id="key9" onClick="AddDigit('9')">9</span>
<span id="key0" onClick="AddDigit('0')" style="width: 200px;">0</span>
<span id="keyback" class="clear" onClick="RemoveDigit()"> <div class="num_xBox">X</div></span>
</div>
</div>
</form>
&#13;
答案 1 :(得分:0)
var text = "DD/MM/YYYY";
$(".textbox").on("focus blur", function(){
$(".wrapper").toggleClass("focused");
});
$(".wrapper").click(function (e) {
if (e.target == this) {
var b = $(".textbox", this).focus();
}
}).trigger("click");
$(".wrapper > .textbox").on("input", function(){
var ipt = $(this).text().replace(/\u00A0/g, " ");
$(".gray").text(text.substr(ipt.length, text.length));
}).trigger("input");
答案 2 :(得分:-1)
如果我理解得很好。我认为一种解决方案是将用户输入存储在隐藏字段中。然后获取此输入以分割数字并返回由分割值等组成的可见输入值。