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$.getJSON(Url, {DataKey:"Value"}, function(json){ alert(json); }); getJSON()

How to use it's very Simple:   Dim json As New JsonSerializer()   json.NullValueHandling = NullValueHandling.Ignore   Dim sb As New StringBuilder   Dim sw As New IO.StringWriter(sb)   Dim jw As New JsonTextWriter(sw)   json.Serialize(jw, ObjectToJson )   Response.Write(sb.ToString) Download JSon.net 

File upload-文件上傳 Ajax File Upload jQUploader Multiple File Upload plugin jQuery File Style Styling an input type file Progress Bar Plugin Form Validation-表單驗證 jQuery Validation Auto Help Simple jQuery form validation jQuery XAV - form validations jQuery AlphaNumeric Masked Input TypeWatch Plugin Text limiter for form fields Ajax Username Check with jQuery Form - Select Box stuff-表單－選取框 jQuery Combobox jQuery controlled dependent (or Cascadign) Select List Multiple Selects Select box manipulation Select Combo Plugin jQuery - LinkedSelect Auto-populate multiple select boxes Choose Plugin (Select Replacement) Form Basics, Input Fields, Checkboxes etc.-表單的基本輸入框，選擇框等 jQuery Form Plugin jQuery-Form jLook Nice Forms jNice Ping Plugin Toggle Form Text ToggleVal jQuery Field Plugin jQuery Form’n Field plugin jQuery Checkbox manipulation jTagging jQuery labelcheck Overlabel 3 state radio buttons ShiftCheckbox jQuery Plugin Watermark Input jQuery

fancybox ColorBox thickbox Jquery Tools http://valums.com/javascript-image-galleries/

<link rel="stylesheet" href="css/ui-lightness/jquery-ui.custom.css" type="text/css" media="all" /> <script language="JavaScript" type="text/JavaScript" src="js/jquery.min.js"></script> <script language="JavaScript" type="text/JavaScript" src="js/jquery-ui.custom.min.js"></script> <script language="JavaScript" type="text/JavaScript"> <!-- function PreviewImage(uri) {   $("#image").attr('src', uri);   $('#dialog').dialog({    hide: true,    modal: true,     resizable: false,    draggable:  true,    width: 'auto',  closeText: 'Title',   position:[200,100]     }); } ---> <div id="dialog" style="display:none; clip: rect(auto,auto,auto,15);" align="center">    <img id="image" src=""  align="absmiddle"

  $.ajax({              type: "post",              url: "URL",              data: { paraName: paraValue},              cache: "false",              success: function(result) {              } //success          });      //$.ajax JQuery Ajax http://www.w3school.com.cn/jquery/ajax_ajax.asp