我真的很困惑。我有一个JavaScript代码，该代码发布到webmethod并获取字符串。并且有一个h1标记。我想突出显示网站上返回的单词(此处为“abc”)。所以我的aspx代码在下面。我的jquery方法(突出显示)不起作用，有人可以帮忙吗？
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master"
AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication4._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"></asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<!doctype html>
<html lang="en">
<head>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="http://www.google.com/jsapi" type="text/javascript"></script>
<script type="text/javascript">
google.load('visualization', '1.1', { packages: ['corechart', 'controls'] });
</script>
<script src="Scripts/jquery-1.11.3.min.js" type="text/javascript"></script>
<script src="Scripts/jquery-ui.min.js" type="text/javascript"></script>
</head>
<body>
<h1> abc sadaf dasfafa dsada abc afasgfa abc </h1>
<script>
var exp;
jQuery.fn.highlight = function (str, className) {
var regex = new RegExp(str, "gi");
return this.each(function () {
$(this).contents().filter(function () {
return this.nodeType == 3 && regex.test(this.nodeValue);
}).replaceWith(function () {
return (this.nodeValue || "").replace(regex, function (match) {
return "<span class=\"" + className + "\">" + match + "</span>";
});
});
});
};
$.ajax({
type: 'POST',
url: 'http://localhost:61216/Default.aspx/MyFunction',
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: function (result) {
exp = result.d;
},
error: function () {
alert('Something occured');
}
});
$(document).on('click', 'h1', function(){
$('h1').highlight(exp, "highlight");
alert("hi");
});
</script>
</body>
</html>
</asp:Content>
最佳答案
您的jquery函数正在运行，如下所示:
var exp = 'abc';
jQuery.fn.highlight = function(str, className) {
var regex = new RegExp(str, "gi");
return this.each(function() {
$(this).contents().filter(function() {
return this.nodeType == 3 && regex.test(this.nodeValue);
}).replaceWith(function() {
return (this.nodeValue || "").replace(regex, function(match) {
return "<span class=" + className + ">" + match + "</span>";
});
});
});
};
$(document).on('click', 'h1', function() {
$('h1').highlight(exp, "highlight");
});.highlight {
color: red;
background-color: yellow;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h1> abc sadaf dasfafa dsada abc afasgfa abc </h1>问题是您的ajax请求的
success回调。仅当用户单击
highlight元素时才调用h1函数。因此，当您的ajax请求结束时，您需要触发该函数以突出显示新的exp。尝试用下面的代码替换成功回调，然后重试:success: function (result) {
exp = result.d;
$('h1').highlight(exp, "highlight");
}