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Entity Framework, RIA Services 및 MVVM-Light 툴킷을 사용하여 Silverlight 4 응용 프로그램을 만듭니다. > * 자료 RIA 서비스로 삽입/업데이트 구성 속성
- 작업 : 다음과 같은 구조를 포함하는 복잡한 객체 그래프와 응용 프로그램 거래 -> * 할당
- WorkplanItems 1 -> * 할당
이 작품 벌금. 특정 작업의 루트에서 전체 그래프를로드합니다. 내가 다시 변경 사항을 제출 때, 나는 오류를 얻을
Entity for operation '0' has multiple parents
그것은 내 메타 데이터의 구성 속성이 나에게 완전한 그래프로이 제출 한 후 업데이트를 처리 할 수 있도록해야한다 무엇이라고 this post에서 나의 이해하고있다 내 실버 라이트 애플리케이션에서 한 번의 왕복으로 서버의 모든 개체를 제대로 볼 수 있습니다. 내 목표는 각 변경 사항에 변경 사항을 제출하지 않고 사용자가 작업을 여러 번 변경하고 관련 부분을 작성한 다음 제출하거나 변경 사항을 취소 할 수 있도록하는 것입니다.
내가 간과하고있는 문제점을 알고 계시다면 알려 주시기 바랍니다. 다음은 설정 한대로 메타 데이터입니다.
// The MetadataTypeAttribute identifies AssignmentMetadata as the class
// that carries additional metadata for the Assignment class.
[MetadataTypeAttribute(typeof(Assignment.AssignmentMetadata))]
public partial class Assignment
{
// This class allows you to attach custom attributes to properties
// of the Assignment class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class AssignmentMetadata
{
// Metadata classes are not meant to be instantiated.
private AssignmentMetadata()
{
}
public decimal CostBudgeted { get; set; }
public decimal CostRemaining { get; set; }
public decimal HoursBudgeted { get; set; }
public decimal HoursRemaining { get; set; }
public bool IsComplete { get; set; }
public int ItemID { get; set; }
public Job Job { get; set; }
public int JobID { get; set; }
public Resource Resource { get; set; }
public int ResourceID { get; set; }
public Workplan Workplan { get; set; }
public int WorkplanID { get; set; }
public WorkplanItem WorkplanItem { get; set; }
}
}
// The MetadataTypeAttribute identifies JobMetadata as the class
// that carries additional metadata for the Job class.
[MetadataTypeAttribute(typeof(Job.JobMetadata))]
public partial class Job
{
// This class allows you to attach custom attributes to properties
// of the Job class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class JobMetadata
{
// Metadata classes are not meant to be instantiated.
private JobMetadata()
{
}
[Display(AutoGenerateField = false)]
[Include]
[Composition]
public EntityCollection<Assignment> Assignments { get; set; }
[Display(Name="Client Job", Order=2, Description="Is this a client job?")]
[DefaultValue(true)]
public bool IsRealJob { get; set; }
[Display(AutoGenerateField = false)]
[Include]
public JobDetail JobDetail { get; set; }
[Display(AutoGenerateField = false)]
public int JoblID { get; set; }
[Display(Name="Job Title", Order=1, Description="What should this job be called?")]
public string Title { get; set; }
[Display(AutoGenerateField = false)]
[Include]
[Composition]
public EntityCollection<WorkplanItem> WorkplanItems { get; set; }
[Display(AutoGenerateField = false)]
[Include]
[Composition]
public EntityCollection<Workplan> Workplans { get; set; }
[Display(AutoGenerateField = false)]
[Include]
[Composition]
public EntityCollection<Resource> Resources { get; set; }
}
}
// The MetadataTypeAttribute identifies JobDetailMetadata as the class
// that carries additional metadata for the JobDetail class.
[MetadataTypeAttribute(typeof(JobDetail.JobDetailMetadata))]
public partial class JobDetail
{
// This class allows you to attach custom attributes to properties
// of the JobDetail class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class JobDetailMetadata
{
// Metadata classes are not meant to be instantiated.
private JobDetailMetadata()
{
}
[Display(Name="Client", Order=1,Description="Name of the Client")]
public string Client { get; set; }
[Display(Name = "Client Fee", Order = 5, Description = "Client Fee from Engagement Letter")]
[DisplayFormat(DataFormatString="C",NullDisplayText="<Not Set>",ApplyFormatInEditMode=true)]
public Nullable<decimal> ClientFee { get; set; }
[Display(AutoGenerateField=false)]
public int ClientIndex { get; set; }
[Display(AutoGenerateField = true)]
public string EFOLDERID { get; set; }
[Display(Name = "Engagement Name", Order = 4, Description = "Friendly name of the Engagement")]
public string Engagement { get; set; }
[Display(Name = "Eng Type", Order = 3, Description = "Type of Work being done")]
public string EngagementType { get; set; }
[Display(AutoGenerateField = false)]
public Job Job { get; set; }
[Display(AutoGenerateField = false)]
public int JobID { get; set; }
[Display(AutoGenerateField = false)]
public int PEJobID { get; set; }
[Display(Name = "Service", Order = 2, Description = "Service Type")]
public string Service { get; set; }
[Display(Name = "Timing of the Work", Order = 6, Description = "When will this work occur?")]
public string Timing { get; set; }
}
}
// The MetadataTypeAttribute identifies PendingTimesheetMetadata as the class
// that carries additional metadata for the PendingTimesheet class.
[MetadataTypeAttribute(typeof(PendingTimesheet.PendingTimesheetMetadata))]
public partial class PendingTimesheet
{
// This class allows you to attach custom attributes to properties
// of the PendingTimesheet class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class PendingTimesheetMetadata
{
// Metadata classes are not meant to be instantiated.
private PendingTimesheetMetadata()
{
}
public decimal PendingHours { get; set; }
public string UserName { get; set; }
public DateTime WorkDate { get; set; }
[Include]
public Workplan Workplan { get; set; }
public int WorkplanID { get; set; }
}
}
// The MetadataTypeAttribute identifies ResourceMetadata as the class
// that carries additional metadata for the Resource class.
[MetadataTypeAttribute(typeof(Resource.ResourceMetadata))]
public partial class Resource
{
// This class allows you to attach custom attributes to properties
// of the Resource class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class ResourceMetadata
{
// Metadata classes are not meant to be instantiated.
private ResourceMetadata()
{
}
[Include]
[Composition]
public EntityCollection<Assignment> Assignments { get; set; }
[Include]
public Job Job { get; set; }
public int JobID { get; set; }
public decimal Rate { get; set; }
public int ResourceID { get; set; }
public string Title { get; set; }
public string UserName { get; set; }
}
}
// The MetadataTypeAttribute identifies WorkplanMetadata as the class
// that carries additional metadata for the Workplan class.
[MetadataTypeAttribute(typeof(Workplan.WorkplanMetadata))]
public partial class Workplan
{
// This class allows you to attach custom attributes to properties
// of the Workplan class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class WorkplanMetadata
{
// Metadata classes are not meant to be instantiated.
private WorkplanMetadata()
{
}
[Include]
[Composition]
public EntityCollection<Assignment> Assignments { get; set; }
public string Description { get; set; }
[Include]
public Job Job { get; set; }
public int JobID { get; set; }
public EntityCollection<PendingTimesheet> PendingTimesheets { get; set; }
public Nullable<int> PETaskID { get; set; }
public decimal TtlCost { get; set; }
public decimal TtlHours { get; set; }
public DateTime WorkEnd { get; set; }
public int WorkplanID { get; set; }
[Include]
[Composition]
public EntityCollection<WorkplanItem> WorkplanItems { get; set; }
public DateTime WorkStart { get; set; }
}
}
// The MetadataTypeAttribute identifies WorkplanItemMetadata as the class
// that carries additional metadata for the WorkplanItem class.
[MetadataTypeAttribute(typeof(WorkplanItem.WorkplanItemMetadata))]
public partial class WorkplanItem
{
// This class allows you to attach custom attributes to properties
// of the WorkplanItem class.
//
// For example, the following marks the Xyz property as a
// required property and specifies the format for valid values:
// [Required]
// [RegularExpression("[A-Z][A-Za-z0-9]*")]
// [StringLength(32)]
// public string Xyz { get; set; }
internal sealed class WorkplanItemMetadata
{
// Metadata classes are not meant to be instantiated.
private WorkplanItemMetadata()
{
}
[Include]
[Composition]
public EntityCollection<Assignment> Assignments { get; set; }
public string Description { get; set; }
public int ItemID { get; set; }
[Include]
public Job Job { get; set; }
public int JobID { get; set; }
public string Notes { get; set; }
public short Ordinal { get; set; }
[Include]
public Workplan Workplan { get; set; }
public int WorkplanID { get; set; }
}
}