本地化動態下拉數據庫使用jquery

Question

This is the language select box. 

<select name="lang" id="lang" browser="Indicated by the browser"> 
<option value="en">English</option> 
<option value="fr">French</option> 
<option value="ch">Chinese</option> 
<option value="sp">Spain</option>`enter code here` 
</select> 

This is script i have written. 

<script type="text/javascript"> 


    jQuery(document).ready(function() { 

     loadBundles('en'); 
     jQuery('#lang').change(function() { 
      var selection = jQuery('#lang option:selected').val(); 
      loadBundles(selection != 'browser' ? selection : null); 
      jQuery('#langBrowser').empty(); 
      if(selection == 'browser') {      jQuery('#langBrowser').text('('+jQuery.i18n.browserLang()+')'); 
      } 
     }); 


    }); 

    function loadBundles(lang) { 
     jQuery.i18n.properties({ 
      name:'Messages', 
      path:'bundle/', 
      mode:'both', 
      language:lang, 
      callback: function() { 
       updateExamples(); 
      } 
     }); 
    } 

    function updateExamples() { 
     var ex1 = 'Firstname'; 
     var ex2 = 'Lastname'; 
     var ex3 = 'Youremail'; 
     var ex4 = 'Reenteremail'; 
     var ex5 = 'Newpassword'; 
     var ex6 = 'Dateofbirth'; 
     var ex7 = 'Signup'; 
     var ex8 = 'Itsfreeandalwayswillbe'; 
     var ex9 = 'Birthlabel'; 
     var ex10 = 'Termslabel'; 
     var ex11 = 'Summarylabel'; 
     var ex12 = 'PersonalLabel'; 
     var ex13 = 'Interestlabel'; 
     var ex14 = 'Addlabel'; 
     var ex15 = 'Editlabel'; 
     var ex16 = 'Deletelabel'; 
     var spreadsheet_label = 'Spreadsheetlabel'; 
     var invite_google_label = 'Invitegooglelabel'; 
     var invite_facebook_label = 'Invitefacebooklabel'; 
     var upload_label = 'Uploadlabel'; 
     var subBut='Submit'; 
     var dialogTitle = 'DTitle'; 


     jQuery("#first_name_label").text(eval(ex1)); 
     jQuery("#first_name_label1").text(eval(ex1)); 
     jQuery("#last_name_label").text(eval(ex2)); 
     jQuery("#last_name_label1").text(eval(ex2)); 
     jQuery("#email_label").text(eval(ex3)); 
     jQuery("#email_label1").text(eval(ex3)); 
     jQuery("#reenter_email_label").text(eval(ex4)); 
     jQuery("#new_password_label").text(eval(ex5)); 
     jQuery("#date_of_birth_label").text(eval(ex6)); 
     jQuery("#date_of_birth_label1").text(eval(ex6)); 
     jQuery("#sign_up").text(eval(ex7)); 
     jQuery("#label1").text(eval(ex8)); 
     jQuery("#button").val(eval(ex7)); 
     jQuery("#birth_label").text(eval(ex9)); 
     jQuery("#terms_label").text(eval(ex10)); 
     jQuery("#summary_label").text(eval(ex11)); 
     jQuery("#personal_label").text(eval(ex12)); 
     jQuery("#interest_label").text(eval(ex13)); 
     jQuery("#add_label").text(eval(ex14)); 
     jQuery("#edit_label").text(eval(ex15)); 
     jQuery("#delete_label").text(eval(ex16)); 

     jQuery("#spreadsheet_label").text(eval(spreadsheet_label)); 
     jQuery("#invite_google_label").text(eval(invite_google_label)); 
     jQuery("#invite_facebook_label").text(eval(invite_facebook_label)); 
     jQuery("#upload_label").val(eval(upload_label)); 


     jQuery("#submit_button").val(eval(subBut)); 
     jQuery("#ui-dialog-title-dialog").text(eval(dialogTitle)); 


    } 
    </script> 

    Everything is working fine for the labels. But in the case of dynamic drop down i  got problem. How to localize the dynamic drop down data when the user selected the language. 
The data in the drop down is coming from the database. 



I have a language select drop down box, after selecting one language from dropdown list am able to change the text filed names and all other text in the language that is selected. 

同時我有另一個下拉，在數據從數據庫動態生成。用戶從下拉列表中選擇語言後，我必須更改此下拉列表中的數據。如果你有任何想法，請告訴我。

謝謝。

Answer 1

我建議你爲這個問題使用ajax。

您可以bind ajax首先下拉，然後通過您從後端獲得的數據填充secound下拉菜單。

Answer 2

你可以做這樣的事情：

<select name='lang'> 
<option value='eng'>Eng</option> 
<option value='french'>French</option> 

</select> 

<!-- below div is another div whose data changes as per the language selected --> 
<div id="another_div"></div>​ 

JS：

$("select[name='lang']").live({ 
change: function(e){ 
    var selected_lang = $("select[name='lang'] option:selected").html(); 

    data = {} 
    data['selected_lang'] = selected_lang; 
    $.ajax({ 
     url: "required url", 
     data: data, 
     success: function(res){ 
      $("#another_div").text(res); // if result is a direct text sent from server 
      // or 
      $("#another_div").text(res.content); //if result is an object with the required content present in the key 'content' 
     }, 
     error: function(err){ 
      alert("error occured");     
     } 

    });   


} 
});​ 

Answer 3

我會用許多層疊的jQuery下拉框之一：

http://www.ryanmwright.com/2010/10/13/cascading-drop-down-in-jquery/