基因敲除通過Ajax調用json

我嘗試直接在Ajax調用中映射和綁定JSON數據，但沒有成功。該警報顯示所請求的數據。如果我將此警報的內容複製/粘貼到測試變量中，則映射工作正常。爲什麼我不能直接映射/綁定到結果？ 'test'和'result.d'有什麼區別？（綁定結果 - 沒有.d也不起作用）。基因敲除通過Ajax調用json

感謝您的任何幫助。

var test = { "formulier": { "titel": "test", "formulier_id": 4, "vragen": [{ "vraag_id": 5, "vraag": "Hoe gaat het?", "soortvraag_id": 4, "soortwaarde_id": 13, "verplicht": false, "antwoorden": [] }, { "vraag_id": 6, "vraag": "Dit is een kopje", "soortvraag_id": 18, "soortwaarde_id": 13, "verplicht": false, "antwoorden": [] }, { "vraag_id": 3, "vraag": "vraag 3k", "soortvraag_id": 6, "soortwaarde_id": 13, "verplicht": false, "antwoorden": [{ "antwoord": "nieuw2", "antwoord_id": 7, "vraag_id": 3, "iscorrect": true }, { "antwoord": "echt waar?", "antwoord_id": 5, "vraag_id": 3, "iscorrect": false }, { "antwoord": "nieuw 123", "antwoord_id": 2, "vraag_id": 3, "iscorrect": false }, { "antwoord": "nieuw", "antwoord_id": 6, "vraag_id": 3, "iscorrect": false }] }] } } 

      // This doesn't work 
      $.ajax({ 
         type: "POST", 
         contentType: "application/json", 
         url: "../formulierService.asmx/getLeegFormulier", 
         data: "{'id': " + 4 + "}", 
         dataType: "json", 
         success: function (result) { 
          alert(result.d); //content of alert was pasted into var test above 
          var ViewModel = ko.mapping.fromJS(result.d); 
          ko.applyBindings(ViewModel); 
         } 
      }); 

      // This does work 
      var ViewModel2 = ko.mapping.fromJS(test); 
      ko.applyBindings(ViewModel2);

來源

2013-07-29 Jeroen

在這裏，要使用fromJS，您需要將您的json字符串反序列化爲js對象。

var test = JSON.parse(result.d);

然後，撥打

var ViewModel2 = ko.mapping.fromJS(test);

另一種選擇是直接使用fromJSON，而不是fromJS：

var ViewModel2 = ko.mapping.fromJSON(result.d);

來源

2013-07-29 18:41:17 Hariprasad

是，ko.mapping.fromJSON做了招。 – Jeroen

基因敲除通過Ajax調用json

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