在json中傳遞一個數組並在mvc的控制器中訪問它

Question

我正在嘗試使數組marklistdetails發佈多個學生的詳細信息，我無法訪問控制器上的相同內容，因爲對象未初始化而出現錯誤

JSON代碼

變種MarksEntry = { Adm_Or_Name： ''， AdmissionNo： ''， 名稱： ''， CLASSID： ''， ClassSectionId： ''， RollNo： ''， MarksEntered：''， RemarksEntered：''， Subjectid： ''， ExaminationID： ''， ExamDate： ''， 至今： ''， MarksEntryDetails：[]，

}; 
var MarksEntryDetails = 
    { 
    // StudentId: '', 
     MarksEntered: '', 
    // RemarksEntered: '', 
    // Total_Oral_Marks: '', 
    // TOTAL_PRACTICAL_MARKS: '', 
     //TOTAL_PROJECT_MARKS: '', 
     //TOTAL_MARKS: '', 
    // PRESENT: '', 
    // PASS_FAIL: '', 


    }; 

function SavingRecords(url) { 
    var result = 0; 
    var Index = 0; 
    //var marksEntrylist = []; 
    MarksEntry.ClassSectionId = $("table#IntialDetails tr").find("td").eq(6).html() 
    MarksEntry.ExaminationID = $("table#IntialDetails tr").find("td").eq(7).html() 
    MarksEntry.Subjectid = $("table#IntialDetails tr").find("td").eq(8).html() 
    $('table#student_marks tr').each(function() { 

     MarksEntry.MarksEntryDetails.add(new CreateMarksEntry(this)); 
     console.log(MarksEntry.MarksEntryDetails); 
     $.getJSON(url,JSON.stringify(MarksEntry), function (data) { 
      Success = data; 
     }); 
     // return Success 
     // alert(marksEntrylist); 
     //Index = $(this).index() + 1; 
     // MarksEntry.ExamDate = Formateddate; 
     // result = result + CreateMarksEntry(this); 
    }); 
    if (result > 0) { 
     $("#Complete").html("No.of Records saved:" + result); 
     $("#Complete").dialog({ 
      resizable: false, 
      height: 140, 
      modal: true, 
      autoOpen: true, 
      buttons: { 
       'Done': function() { 
        $(this).dialog('close'); 
        var url = $("#RedirectTo").val(); 
        location.href = url; 
       } 
      } 
     }); 


    } 
    else { 

     alert('Records havent been saved'); 
    } 


    function CreateMarksEntry(objTr) { 
     var cols = $(objTr).find('td'); 
     // this.Name = $(cols[0]).html(); 
     if ($(cols[4]).html() == " ") { 
      this.MarksEntered = ""; 
     } 
     if ($(cols[5]).html() == " ") { 
      this.RemarksEntered = ""; 
     } 
     var Details={ 
      //this.RollNo = $(cols[1]).html(); 
      //this.AdmissionNo = $(cols[2]).html(); 

      MarksEntered: $(cols[4]).html(), 
      remarksentered: $(cols[5]).html() 
      } 
     // this.RemarksEntered = $(cols[5]).html(); 
     // if (this.Name == " ") { 
     //  this.Name = ""; 
     // } 
     // if (this.RollNo == " ") { 
     //  this.RollNo = ""; 
     // } 
     // if (this.AdmissionNo == " ") { 
     ///  this.AdmissionNo = ""; 
     // } 
     if (this.MarksEntered == " ") { 
      this.MarksEntered = ""; 
     } 
     if (this.RemarksEntered == " ") { 
      this.RemarksEntered = ""; 
     } 
    // $.getJSON(url, MarksEntry, function (data) { 
     //  Success = data; 
     // }); 
     // return Success 
    }; 


} 


    model 

    using System; 
    using System.Collections.Generic; 
    using System.Linq; 
    using System.Text; 

    namespace Examination.Domain.ViewModel 
    { 
     public class vmStudentMarks 
     { 
      public string ExamTypeDesc { get; set; } 
      public int Subjectid { get; set; } 
      public int ClassSectionID { get; set; } 
      public string ExamDate { get; set; } 
      public int ExaminationID { get; set; } 
      public int Id { get; set; } 
      public string SchoolId { get; set; } 
      public string SessionId { get; set; } 
      public string Name { get; set; } 
      public string AdmissionNo { get; set; } 
      public string RollNo { get; set; } 
      public string Written { get; set; } 
      public string Oral { get; set; } 
      public string Practical { get; set; } 
      public string PASS_FAIL { get; set; } 
      public string Project { get; set; } 
      public string RemarksEntered { get; set; } 
      public string MarksEntered { get; set; } 
      public string ClassSection { get; set; } 
      public string SubjectName { get; set; } 
      public string StudentId { get; set; } 
      public long EXAM_RESULT_ID{ get; set; } 
      public long EXAM_RESULT_DET_ID { get; set; } 
      public int MAX_MARKS { get; set; } 
      public bool Present { get; set; } 
      public int ENTRY_USER_ID { get; set; } 
      public int UPDATE_USER_ID { get; set; } 
      public int GRACE { get; set; } 


    //public MarksEntryDetails[] @List { get; set; } 
      public List<MarksEntryDetails> MarksEntryDetails { get; set; } 

     } 
     public class MarksEntryDetails 
     { 
      public string StudentId { get; set; } 
      public string MarksEntered { get; set; } 
      public string remarksentered { get; set; } 
      public int total_oral_marks { get; set; } 
      public int total_practical_marks { get; set; } 
      public int total_project_marks { get; set; } 
      public int total_marks { get; set; } 
      public int present { get; set; } 
      public string pass_fail { get; set; } 
      public int grace { get; set; } 
     } 
    } 
    controller 

     [AcceptVerbs(HttpVerbs.Get)] 
      public ActionResult CreateRecords(vmStudentMarks MarksEntry) 
      { 
       MarksEntry.MarksEntryDetails[0].MarksEntered.ToString();//error throws as object not intialised 
       UserProfile userProfile = SchoolSession.CurrentUser; 
       int Sucess = examScoreService.PostMARKSENTRYDETAILS(userProfile.School.Id, userProfile.CurrentSession.Id, 

    userProfile.EmployeeId,MarksEntry); 
       return Json(Sucess, JsonRequestBehavior.AllowGet); 

      } 

Answer 1

您可以使用JSON.stringify當你發佈的數據傳遞ARRY對象到控制器。

$.ajax(
{ 
    url: 'controller/CreateRecords', 
    data: JSON.stringify({MarksEntry: MarksEntry}), 
    contentType: 'application/json', 
    dataType: 'json', 
    type: 'POST', 
    success: function (data) { 
     // success 
    }, 
    error: function() { 
     // error 
    } 
}); 

請參考以下文章瞭解更多信息。

Pass Complex JavaScript Object to MVC Controller

這說明我們可以通過複雜的JavaScript對象MVC控制器。

謝謝！