[英]My jquery method doesn't work
I really get confused . 我真的很困惑。 I have a javascript code that's posting to webmethod and getting string.
我有一个javascript代码,发布到webmethod并获取字符串。 And there is a
h1
tag . 并且有一个
h1
标签。 I want to highlight the returning words at website (that's "abc" here). 我想强调网站上的返回单词(这里是“abc”)。 So my aspx code is below .
所以我的aspx代码如下。 My jquery method (highlight) doesn't work.Can anyone help with this ?
我的jquery方法(突出显示)不起作用。任何人都可以帮忙吗?
<%@ 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>
Your jquery function is working, as you can see below: 你的jquery函数正常工作,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>
The problem is the success
callback of your ajax request. 问题是你的ajax请求
success
回调。 The highlight
function is only being called when the user clicks on a h1
element. 只有在用户单击
h1
元素时才会调用highlight
功能。 So when your ajax request ends you need to trigger the function to highlight the new exp
. 因此,当您的ajax请求结束时,您需要触发该功能以突出显示新的
exp
。 Try replacing the success callback with the code bellow and try again: 尝试使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");
}
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