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POHow to get javascript values on code behind in c#
 

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    <p>I need to get javascript values on code behind in c#.I know i can use hidden field but there is no server control on page for postback.Please tell me how can get vales in code behind.</p> <p>Here is my code:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;Facebook Get Logged in User Details UserName,Email,Profile Image&lt;/title&gt; &lt;script src="jquery-1.6.2.min.js" type="text/javascript"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"&gt;&lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;script&gt; // Load the SDK Asynchronously (function (d) { var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0]; if (d.getElementById(id)) { return; } js = d.createElement('script'); js.id = id; js.async = true; js.src = "//connect.facebook.net/en_US/all.js"; ref.parentNode.insertBefore(js, ref); } (document)); // Init the SDK upon load window.fbAsyncInit = function () { FB.init({ appId: 'APPID', // App ID channelUrl: '//' + window.location.hostname + '/channel', // Path to your Channel File status: true, // check login status cookie: true, // enable cookies to allow the server to access the session xfbml: true // parse XFBML }); // listen for and handle auth.statusChange events FB.Event.subscribe('auth.statusChange', function (response) { if (response.authResponse) { // user has auth'd your app and is logged into Facebook var uid = "http://graph.facebook.com/" + response.authResponse.userID + "/picture"; FB.api('/me', function (me) { document.getElementById('auth-displayname').innerHTML = me.name; document.getElementById('myJSString').value = me.name; alert(document.getElementById('myJSString').value); document.getElementById('Email').innerHTML = me.email; document.getElementById('profileImg').src = uid; // document.getElementById('ctl00_CPHDefault_tcTPS_TPProd_ctl01_tcProduction_TPNewT‌​itlesStatus_ChangedRowsIndicesHiddenField').value = uid; // alert('yyy'); }) document.getElementById('auth-loggedout').style.display = 'none'; document.getElementById('auth-loggedin').style.display = 'block'; } else { // user has not auth'd your app, or is not logged into Facebook document.getElementById('auth-loggedout').style.display = 'block'; document.getElementById('auth-loggedin').style.display = 'none'; } }); $("#auth-logoutlink").click(function () { FB.logout(function () { window.location.reload(); }); }); } &lt;/script&gt; &lt;h1&gt; Facebook Login Authentication Example&lt;/h1&gt; &lt;div id="auth-status"&gt; &lt;div id="auth-loggedout"&gt; &lt;div id="Result" class="fb-login-button" autologoutlink="true" scope="email,user_checkins"&gt;Login&lt;/div&gt; &lt;/div&gt; &lt;div id="auth-loggedin" style="display: none"&gt; Name: &lt;b&gt;&lt;span id="auth-displayname"&gt;&lt;/span&gt;&lt;/b&gt;(&lt;a href="#" id="auth-logoutlink"&gt;logout&lt;/a&gt;)&lt;br /&gt; Email: &lt;b&gt;&lt;span id="Email"&gt;&lt;/span&gt;&lt;/b&gt;&lt;br /&gt; Profile Image: &lt;img id="profileImg" /&gt; &lt;form runat="server"&gt; &lt;asp:HiddenField runat="server" id="myJSString" /&gt; &lt;/form&gt; &lt;/div&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>You can see there is no server control so how i can get NAME,UID variables in code behind.</p> <p>Thanks</p>
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