System.Data.Entity.Infrastructure.DbUpdateException当一次保存多个表时

Question

我想一次插入所有这些表，一切顺利在调试器中，直到它命中SaveChanges（）方法，我得到“系统”。 Data.Entity.Infrastructure.DbUpdateException“错误！

表：

public partial class EmployementRequest 
{ 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")] 
    public EmployementRequest() 
    { 
     this.EmployeeCourses = new Collection<EmployeeCours>(); 
     this.EmployeeLanguages = new Collection<EmployeeLanguage>(); 
     this.EmployeeSkills = new Collection<EmployeeSkill>(); 
    } 

    public System.Guid PKEmploymentRequest { get; set; } 
    public Nullable<System.Guid> FKPerson { get; set; } 
    public string Name { get; set; } 
    public string Surnam { get; set; } 
    public string Father { get; set; } 
    public string IDNumber { get; set; } 
    public string IDCardNumber { get; set; } 
    public string IDCity { get; set; } 
    public string Birthday { get; set; } 
    public string Birthplace { get; set; } 
    public string Nationality { get; set; } 
    public string Religion { get; set; } 
    public string Phone { get; set; } 
    public string Cell { get; set; } 
    public string Address { get; set; } 
    public string EmergencyName { get; set; } 
    public string EmergencyPhone { get; set; } 
    public string EmergencyAddress { get; set; } 
    public string ParentedPeople { get; set; } 
    public string Gender { get; set; } 
    public string MarriageStatus { get; set; } 
    public string Residency { get; set; } 
    public string InsuranceStatus { get; set; } 
    public string InsuranceCode { get; set; } 
    public string VehicleStatus { get; set; } 
    public string VehicleType { get; set; } 
    public string MilitaryServiceStatus { get; set; } 
    public string EducationGrade { get; set; } 
    public string EducatedFrom { get; set; } 
    public string EducationField { get; set; } 
    public string Illness { get; set; } 
    public Nullable<bool> ExtraWorkCapability { get; set; } 
    public string LeisureTimeHobbies { get; set; } 
    public Nullable<decimal> Salary { get; set; } 
    public string IntroductionMethod { get; set; } 
    public string IntroducerName { get; set; } 
    public string CreatedOn { get; set; } 

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")] 
    public virtual Collection<EmployeeCours> EmployeeCourses { get; set; } 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")] 
    public virtual Collection<EmployeeLanguage> EmployeeLanguages { get; set; } 
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")] 
    public virtual Collection<EmployeeSkill> EmployeeSkills { get; set; } 
} 


    public partial class EmployeeCours 
{ 
    public System.Guid PKEmlpoyeeCourse { get; set; } 
    public Nullable<System.Guid> FKEmployementRequest { get; set; } 
    public string Course { get; set; } 
    public string Description { get; set; } 
    public Nullable<int> Duration { get; set; } 
    public string Date { get; set; } 
    public string Association { get; set; } 

    public virtual EmployementRequest EmployementRequest { get; set; } 
} 

public partial class EmployeeLanguage 
{ 
    public System.Guid PKEmployeeLanguage { get; set; } 
    public Nullable<System.Guid> FKEmploymentRequest { get; set; } 
    public string Name { get; set; } 
    public string ComprehensionLevel { get; set; } 
    public string WritingLevel { get; set; } 
    public string ConversationLevel { get; set; } 

    public virtual EmployementRequest EmployementRequest { get; set; } 
} 
    public partial class EmployeeSkill 
{ 
    public System.Guid PKEmployeeSkill { get; set; } 
    public Nullable<System.Guid> FKEmploymentRequest { get; set; } 
    public string Skill { get; set; } 
    public string Description { get; set; } 

    public virtual EmployementRequest EmployementRequest { get; set; } 
} 

JQuery的AJAX功能来检索形式插入的数据：

function addEmployementRequest() { 
     var emp = {}; 
     var el = {}; 
     var es = {}; 
     var ec = {}; 
     emp.name = $("#inputName").val(); 
     emp.surnam = $('#inputSurname').val(); 
     emp.father = $('#inputFather').val(); 
     emp.idNumber = $('#inputIDNumber').val(); 
     emp.idCardNumber = $('#inputIDCardNumber').val(); 
     emp.idCity = $('#inputIDCity').val(); 
     emp.birthday = $('#inputBirthday').val(); 
     emp.birthplace = $('#inputBirthplace').val(); 
     emp.Nationality = $('#inputNationality').val(); 
     emp.Religion = $('#inputReligion').val(); 
     emp.Phone = $('#inputPhone').val(); 
     emp.Cell = $('#inputCell').val(); 
     emp.Address = $('#inputAddress').val(); 
     emp.emergencyName = $('#inputEmergencyName').val(); 
     emp.emergencyPhone = $('#inputEmergencyPhone').val(); 
     emp.emergencyAddress = $('#inputEmergencyAddress').val(); 
     emp.parentedPeople = $('#inputParentedPeople').val(); 
     emp.gender = $("input[name='radioGender']:checked").val(); 
     emp.marriageStatus = $('#inputParentedPeople').val(); 
     emp.Residency = $('#selectResidenceStatus option:selected').val(); 
     emp.insuranceStatus = $('#radioInsurance:checked').val(); 
     emp.insuranceCode = $('#inputInsuranceCode').val(); 
     emp.vehicleType = $('#selectVehicleType option:selected').text(); 
     emp.educationGrade = $('#selectEducationGrade option:selected').text(); 
     emp.educatedFrom = $('#inputEducatedFrom').val(); 
     emp.educationField = $('#inputEducationField').val(); 
     emp.illness = $('#inputllness').val(); 
     emp.ExtraWorkCapability = $('#checkboxExtraWorkCapability').is(':checked'); 
     emp.leisureTimeHobbies = $('#inputLeisureTimeHobbies').val(); 
     emp.salary = $('#inputSalary').val(); 
     emp.introductionMethod = $('#inputIntroductionMethod').val(); 
     emp.introducerName = $('#inputIntroducerName').val(); 
     var today = new Date(); 
     emp.createdOn = today.toLocaleDateString("Eng-US"); 
     emp.startDate = $('#startDate').val(); 
     emp.endDate = $('#endDate').val(); 
     emp.position = $('#position').val(); 
     emp.prevSalary = $('#prevsalary').val(); 
     emp.separationReason = $('#separationReason').val(); 

     el.Name = $('#langName').val(), 
      el.ComprehensionLevel = $('#comprehensionLevel').val(), 
      el.WritingLevel = $('#writingLevel').val(), 
      el.ConversationLevel = $('#conversationLevel').val(); 
     ec.Date = $('#courseDate').val(), 
      ec.Course = $('#course').val(), 
      ec.Duration = $('#duration').val(), 
      ec.Association = $('#association').val(), 
      ec.Description = $('#courseDescription').val(); 
     es.Skill = $('#skill').val(), 
      es.skillDescription = $('#skillDescription').val(); 
     //emp.EmployeeCourses = [ 
     //{ 
     // Course: $('#course').val(), 
     // Description: $('#courseDescription'), 
     // Duration: $('#duration').val(), 
     // Date: $('#courseDate').val(), 
     // Association: $('#association').val 
     //} 
     //]; 
     //emp.EmployeeSkills = [ 
     //{ 
     // skill: $('#skill').val(), 
     // skillDescription:$('#skillDescription').val() 
     //}]; 
     $.ajax({ 
      url: 'EmployementRequestPage.asmx/AddEmployementRequest', 
      method: 'post', 
      data: '{emp:' + JSON.stringify(emp) + ',el:' + JSON.stringify(el) + ',es:' + JSON.stringify(es) + ',ec:' + JSON.stringify(ec) + '}', 
      contentType: "application/json; charset=utf-8", 
      success: function() { 
       alert("Success!"); 
      }, 
      error: function (err) { 
       alert(err); 
      } 
     }); 

    }; 

Mehod

[WebMethod] 
    public void AddEmployementRequest(EmployementRequest emp,EmployeeLanguage el,EmployeeSkill es,EmployeeCours ec) 
    { 
     emp.PKEmploymentRequest = Guid.NewGuid(); 

     EmployeeSkill employeeSkill = new EmployeeSkill 
     { 
      PKEmployeeSkill = new Guid(), 
      FKEmploymentRequest = emp.PKEmploymentRequest, 
      Skill = es.Skill, 
      Description = es.Description 
     }; 
     EmployeeLanguage employeeLanguage = new EmployeeLanguage 
     { 
      FKEmploymentRequest = emp.PKEmploymentRequest, 
      PKEmployeeLanguage = Guid.NewGuid(), 
      ComprehensionLevel = el.ComprehensionLevel, 
      ConversationLevel = el.ConversationLevel, 
      WritingLevel = el.WritingLevel, 
      Name = el.Name 
     }; 
     EmployeeCours employeeCours = new EmployeeCours 
     { 
      PKEmlpoyeeCourse = Guid.NewGuid(), 
      FKEmployementRequest = emp.PKEmploymentRequest, 
      Date = ec.Date , 
      Course = ec.Course, 
      Duration = ec.Duration, 
      Association = ec.Association, 
      Description = ec.Description 
     }; 
     EmployementRequest employementRequest = new EmployementRequest 
     { 
      Name = emp.Name, 
      Address = emp.Address, 
      Surnam = emp.Surnam, 
      Father = emp.Father, 
      IDNumber = emp.IDNumber, 
      IDCardNumber = emp.IDNumber, 
      IDCity = emp.IDCity, 
      Birthday = emp.Birthday, 
      Birthplace = emp.Birthplace, 
      Nationality = emp.Nationality, 
      Religion = emp.Religion, 
      Phone = emp.Phone, 
      Cell = emp.Cell, 
      EmergencyAddress = emp.EmergencyAddress, 
      EmergencyName = emp.EmergencyName, 
      EmergencyPhone = emp.EmergencyPhone, 
      ParentedPeople = emp.ParentedPeople, 
      Gender = emp.Gender, 
      MarriageStatus = emp.MarriageStatus, 
      Residency = emp.Residency, 
      InsuranceCode = emp.InsuranceCode, 
      InsuranceStatus = emp.InsuranceStatus, 
      VehicleType = emp.VehicleType, 
      MilitaryServiceStatus = emp.MilitaryServiceStatus, 
      EducatedFrom = emp.EducatedFrom, 
      EducationField = emp.EducationField, 
      EducationGrade = emp.EducationGrade, 
      ExtraWorkCapability = emp.ExtraWorkCapability, 
      LeisureTimeHobbies = emp.LeisureTimeHobbies, 
      Salary = emp.Salary, 
      IntroducerName = emp.IntroducerName, 
      IntroductionMethod = emp.IntroductionMethod, 
      Illness = emp.Illness, 
      VehicleStatus = emp.VehicleStatus, 
     }; 
     employementRequest.EmployeeLanguages.Add(employeeLanguage); 
     employementRequest.EmployeeSkills.Add(employeeSkill); 
     employementRequest.EmployeeCourses.Add(employeeCours); 
     using (var db = new UKN_DBNAMEEntities()) 
     { 

      db.EmployementRequests.Add(employementRequest); 
      db.SaveChanges(); 
     } 
    } 


} 

Answer 1

尝试在尝试捕捉与更新异常附上您的代码或DbValidationException ex：

try 
{ 
    using (var db = new UKN_DBNAMEEntities()) 
     { 

      db.EmployementRequests.Add(employementRequest); 
      db.SaveChanges(); 
     } 
} 
catch(DbEntityValidationException ex) 
{ 
    //get exception and debug 
} 
catch(UpdateException ex) 
{ 
    //get exception and debug 
}