node.js - jquery ui -how to submit ajax dialog? -

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i don't understand code..i using jquery ui dialog now,i using server node.js. data db. using detail view making dialog. view page output db data click submit not work why?

my error message:typeerror: cannot read property 'name' of undefined

my code.

    $("#detail-form").dialog({      autoopen : false,     height : 600,     width : 600,     modal : true,     buttons:{         submit:function(data){             $.ajax({                 url:'/edit',                 datatype:'json',                 type:'post',                 data: $("#detail-form").serialize(),                 success:function(data){                     alert('성공');                     alert('data');                     //location.href='/';                 },                 error:function(request,status,error){                     alert("code:"+request.status+"\n"+"message:"+request.responsetext+"\n"+"error:"+error);                  }             });         }     }  }); $.ajax({      url: '/detail/' + id,      datatype : 'json',      type: 'get',      success:function(data) {         alert(data);          $.each(data, function(i, item){             $("#detail-form").empty();             var css = $("<link type=\"text/css\" href=\"/main.css\" rel=\"stylesheet\" />" +                     "<link rel=\"stylesheet\" href=\"/jquery-ui.css\" />");              var row = $("<form id=\"form\" method=\"post\" enctype=\"multipart/form-data\" action=\"/edit\"><fieldset><legend>view detail</legend><input type=\"hidden\" name=\"file_no\" value=" + item.file_no+ "><table id=\"board_write\" width=500 height=500><colgroup><col style=\"width: 250px\" /><col style=\"width: 710px\" /></colgroup><tbody>"+                     "<tr><th class=\"lside\">no.</th><td class=\"rside\"><input type=\"text\" class=\"simple-input\" value="+ item.file_no+ " disabled>" +                      "</td></tr><p><tr><th class=\"lside\">filename</th><td class=\"rside\"><input type=\"text\" class=\"simple-input\" value="+item.file_name+">" +                      "</td></tr><tr><th class=\"lside\">filemodel</th><td class=\"rside\"><a href=\"/download/item.file_model\" class=\"simple-input\">" + item.file_model +                      "</td><tr><tr><th class=\"lside\">file</th><td class=\"rside\"><input type=\"file\" name=\"file_model\" id=\"series\" value="+ item.file_model +">" +                     "</td></tr><tr><th class=\"lside\">filecontent</th><td class=\"rside\"><input type=\"text\" class=\"simple-input\" value="+ item.file_content+"></td></tr></tbody></table>");             var btn = $("<button id=\"edit\" name=\"save\">edit</button></fieldset></form>");               $("#detail-form").append(css);              $("#detail-form").append(row);             $("#detail-form").append(btn);         });          $("#detail-form").dialog("open");        },          error:function(request,status,error){         alert("code:"+request.status+"\n"+"message:"+request.responsetext+"\n"+"error:"+error);      } });    }


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