地理位置在HTML5 [英] geolocation in html5

问题描述

如何让asp.net当前的经纬度。我有这个code，但它并没有返回数据。它不属于警戒

 ＆LT;脚本类型=文/ JavaScript的'语言=JavaScript的＆GT;
    功能getUserLock（）{
        如果（navigator.geolocation）{            navigator.geolocation.getCurrentPosition（displayResult，displayError）;
        }
        其他{
            setMessage（地理位置是此浏览器不支持）;
        }
    }    功能displayResult（位置）{
        setMessage（纬度：+ position.coords.latitude +，经度：+ position.coords.longitude）;
        PageMethods.SendLocation（position.coords.latitude，position.coords.longitude，的onComplete，onFailed）;
        警报（'测试'）;
    }    函数setMessage（MSG）{
        // document.forms [0] = .myLoc.value味精;
    }    功能displayError（错误）{
        VAR误差= {1：'权限被拒绝'，2：位置不可用，3：'请求超时'};
        setMessage（发生错误：+错误[错误code]）;
    }    功能的onComplete（参数）{
        如果（参数）
            警报（'登录oldunuz'）;
        其他
            警报（'。İşlemBaşarısızOldu Yeniden Deneyiniz ...'）;
    }    功能onFailed（错误）{
        警报（'Yapılanişlemsırasındaaşağıdaki哈塔（LAR）oluştu\\ n \\ r'+ error.get_message（））;
    }＆LT; / SCRIPT＆GT;
 

这是按钮

 ＆LT; ASP：按钮的ID =LoginButton=服务器文本=登录的ValidationGroup =LoginUserValidationGroup
                的OnClientClick =getUserLock（）;的OnClick =LoginButton_Click/＆GT;
 

解决方案

有可能是几个问题在这里：

为了能够使用PageMethods容器在JavaScript中，你需要

首先，装点[WebMethod]属性您的方法。你只被允许使用静态方法！

  [的WebMethod]
公共静态字符串的HelloWorld（字符串名称）
{
   返回你好，世界。我在+名称;
}
 

二，启用PageMethods的支持

 ＆LT; ASP：的ScriptManager ID =ScriptManager1=服务器的EnablePageMethods =真/＆GT;
 

我也想通过提供相应的功能处理的函数添加错误处理一些支持：从PageMethods每次调用花费的调用可能取得的成果，以及其他一些参数的参数

how to get current latitude and longitude in asp.net. i have this code, but it didn't return data. it's not fall alert

  <script type='text/javascript' language="javascript">
    function getUserLock() {
        if (navigator.geolocation) {

            navigator.geolocation.getCurrentPosition(displayResult, displayError);
        }
        else {
            setMessage("Geolocation is not supported by this browser");
        }
    }

    function displayResult(position) {         
        setMessage("Latitude: " + position.coords.latitude + ", Longitude: " + position.coords.longitude);
        PageMethods.SendLocation(position.coords.latitude, position.coords.longitude, onComplete, onFailed);
        alert ('test');
    }

    function setMessage(msg) {
        //            document.forms[0].myLoc.value = msg;
    }

    function displayError(error) {
        var errors = { 1: 'Permission denied', 2: 'Position unavailable', 3: 'Request timeout' };
        setMessage("Error occured: " + errors[error.code]);
    }

    function onComplete(args) {
        if (args)
            alert('Log in oldunuz');
        else
            alert('İşlem Başarısız Oldu. Yeniden Deneyiniz...');
    }

    function onFailed(error) {
        alert('Yapılan işlem sırasında aşağıdaki hata(lar) oluştu.\n\r' + error.get_message());
    }

</script>

this is button

 <asp:Button ID="LoginButton" runat="server" Text="Log In" ValidationGroup="LoginUserValidationGroup"
                OnClientClick="getUserLock();" OnClick="LoginButton_Click" />

解决方案

There can be several issues here:

In order to be able to use PageMethods container in JavaScript you need to

First, decorate your method with [WebMethod] attribute. You are only allowed to use the static methods!

[WebMethod]
public static string HelloWorld(string name)
{
   return "Hello, World. I am " + name;
}

Second, enable the support for PageMethods

<asp:ScriptManager ID="ScriptManager1″ runat="server" EnablePageMethods="True" />

I would also add some support for error handling by providing the appropriate function handlers to the function: every invocation from PageMethods takes parameters for possible outcomes of the invocations as well as some other parameters.

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