[英]innerHtml with ASP.NET and JQuery Mobile
I'm working on a mobile search, that uses your location to determine a zip code server side, but when trying to set two labels to the latitude and longitude to send to the server, I get an error claiming that the innerHtml is null. 我正在进行移动搜索,使用您的位置来确定邮政编码服务器端,但是当尝试将两个标签设置为纬度和经度以发送到服务器时,我收到一个错误,声称innerHtml为空。 Upon further inspection, the element is null.
进一步检查后,元素为空。 Why could this be?
为什么会这样?
<%@ Page Title="" Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Search.Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<script language="javascript" type="text/javascript">
navigator.geolocation.getCurrentPosition(foundLocation, noLocation);
var latitude;
var longitude;
function foundLocation(position) {
latitude = position.coords.latitude;
longitude = position.coords.longitude;
alert('Your location: ' + latitude + ', ' + longitude);
}
function noLocation() {
//Do something here in the case that no location is found, or user denies access
}
function getLocation() {
document.getElementById("ct100_ContentPlaceHolder1_lblLat").innerHtml = latitude;
document.getElementById("ct100_ContentPlaceHolder1_lblLong").innerHtml = longitude;
}
</script>
<div data-role="page">
<div data-role="header">
<h1>Provider Search</h1>
</div>
<div data-role="content">
<asp:Button ID="btnSearch" Text="Search" runat="server" data-role="button" OnClientClick="getLocation()" OnClick="btnSearch_Clicked"></asp:Button>
<asp:Label ID="lblLat" runat="server"></asp:Label>
<asp:Label ID="lblLong" runat="server"></asp:Label>
<p></p>
</div>
</div>
</asp:Content>
I'd like to note that everything in this document is working perfectly, except for the setting of the labels. 我想请注意,除了标签的设置外,本文档中的所有内容都完美无缺。
Also, the ID prefix ct100_ContentPlaceHolder1_ is generated by asp.net during runtime, and this can be confirmed by looking at the page source when I am debugging. 此外,ID前缀ct100_ContentPlaceHolder1_是由asp.net在运行时生成的,这可以通过在调试时查看页面源来确认。
Any help? 有帮助吗?
In your getLocation() function could you try doing the following: 在你的getLocation()函数中,你可以尝试执行以下操作:
function getLocation() {
$('#<%=lblLat.ClientID%>').html(latitude);
$('#<%=lblLong.ClientID%>').html(latitude);
}
You could also try setting the text property of both labels in a similar manner: 您也可以尝试以类似的方式设置两个标签的text属性:
function getLocation() {
$('#<%=lblLat.ClientID%>').text(latitude);
$('#<%=lblLong.ClientID%>').text(latitude);
}
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