Javascript Ajax没有';因为缺乏投入,所以不能工作
我在我的站点上实现了一个AJAX脚本,它控制一些输入,但有一种情况是,我的输入仅在使用范围滑块后显示。如果我不使用范围滑块,只使用其他输入,我的脚本将不会运行。我的AJAX如下所示:Javascript Ajax没有';因为缺乏投入,所以不能工作,javascript,jquery,ajax,Javascript,Jquery,Ajax,我在我的站点上实现了一个AJAX脚本,它控制一些输入,但有一种情况是,我的输入仅在使用范围滑块后显示。如果我不使用范围滑块,只使用其他输入,我的脚本将不会运行。我的AJAX如下所示: <script language="javascript" type="text/javascript"> <!-- //Browser Support Code function ajaxFunction(){ var ajaxRequest; // The variable that m
<script language="javascript" type="text/javascript">
<!--
//Browser Support Code
function ajaxFunction(){
var ajaxRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
ajaxRequest = new XMLHttpRequest();
}catch (e){
// Internet Explorer Browsers
try{
ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
}catch (e) {
try{
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
}catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Create a function that will receive data
// sent from the server and will update
// div section in the same page.
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
var ajaxDisplay = document.getElementById('ajaxDiv');
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
// Now get the value from user and pass it to
// server script.
var bedno = document.getElementById('bedno').value;
var district = document.getElementById('district').value;
var loc = document.getElementById('location').value;
var price1 = document.getElementById('price1').value;
var price2 = document.getElementById('price2').value;
var queryString = "?bedno=" + bedno ;
queryString += "&district=" + district + "&price1=" + price1 + "&price2=" + price2 + "&location=" + loc;
ajaxRequest.open("GET", "ajax-example.php" +
queryString, true);
ajaxRequest.send(null);
}
//-->
</script>
var price1和price2是范围滑块未使用时未定义的两个变量。我想这就是我的脚本无法运行的原因。什么会导致问题
我的滑块仅在使用滑块时生成,因此在访问者单击滑块之前,该值将丢失,但我希望在不使用滑块脚本的情况下显示该值:
$('.priceSlider').slider({
range: true,
min: 0,
max: 2000,
values: [500, 1500],
step: 100,
slide: function(event, ui) {
$('.priceSlider .sliderTooltip .stLabel').html(
'€' + ui.values[0].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$2,") +
' <span class="fa fa-arrows-h"></span> ' +
'€' + ui.values[1].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,") +
' <input type="hidden" id="price1" style="position: absolute;" onchange="ajaxFunction()" value="'+ ui.values[0].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "2") +'" />' +
' <input type="hidden" id="price2" style="position: absolute;" onchange="ajaxFunction()" value="'+ ui.values[1].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "1") +'" />'
);
var priceSliderRangeLeft = parseInt($('.priceSlider .ui-slider-range').css('left'));
var priceSliderRangeWidth = $('.priceSlider .ui-slider-range').width();
var priceSliderLeft = priceSliderRangeLeft + ( priceSliderRangeWidth / 2 ) - ( $('.priceSlider .sliderTooltip').width() / 2 );
$('.priceSlider .sliderTooltip').css('left', priceSliderLeft);
}
});
$('.priceSlider').slider({
范围:对,
分:0,,
最高:2000,
值:[5001500],
步骤:100,
幻灯片:功能(事件、用户界面){
$('.pricesslider.sliderTooltip.stLabel').html(
“€”+ui.values[0].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g,“$2.”
' ' +
“€”+ui.values[1].toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g,“$1”)+
' ' +
' '
);
var priceslideerrangeleft=parseInt($('.priceSlider.ui滑块范围').css('left'));
var pricesliderernagewidth=$('.priceSlider.ui滑块范围').width();
var priceSliderLeft=priceslideerrageleft+(priceslideerragewidth/2)-($('.priceSlider.sliderTooltip').width()/2);
$('.priceSlider.sliderTooltip').css('left',priceSliderLeft);
}
});
任何可能的解决方案都是值得赞赏的。好吧,你可以这样做,价格1和价格2
if(document.getElementById('price2')) {
var price2 = document.getElementById('price2').value;
}
else {
var price2 = 0;
}
但是,既然我看到您使用jQuery,就应该使用jQuery的Ajax方式。很抱歉,我错过了:uncaughttypeerror:无法读取nullbedno、district的属性“value”。。。确保您拥有所有这些元素。错误消息显示其中一个丢失。并确保它们是输入元素,因此它们具有“value”属性