AssociationAttribute.ThisKey 屬性

定義

命名空間:

System.Data.Linq.Mapping

組件:

System.Data.Linq.dll

取得或設定實體類別的成員，表示關聯這一端的索引鍵值。

C#

public string ThisKey { get; set; }

屬性值

String

預設 = 包含類別的 ID。

範例

C#

[Association(Name="FK_CustomerCustomerDemo", Storage="_CustomerDemographic", ThisKey="CustomerTypeID", IsForeignKey=true)]
public CustomerDemographic CustomerDemographic
{
    get
    {
        return this._CustomerDemographic.Entity;
    }
    set
    {
        CustomerDemographic previousValue = this._CustomerDemographic.Entity;
        if (((previousValue != value)
                    || (!this._CustomerDemographic.HasLoadedOrAssignedValue )))
        {
            this.SendPropertyChanging();
            if ((previousValue != null))
            {
                this._CustomerDemographic.Entity = null;
                previousValue.CustomerCustomerDemos.Remove(this);
            }
            this._CustomerDemographic.Entity = value;
            if ((value != null))
            {
                value.CustomerCustomerDemos.Add(this);
                this._CustomerTypeID = value.CustomerTypeID;
            }
            else
            {
                this._CustomerTypeID = default(string);
            }
            this.SendPropertyChanged("CustomerDemographic");
        }
    }
}

備註

針對多個成員，請使用逗號分隔清單。

索引鍵不需要符合主鍵或外鍵，但會假設) 的用戶狀態基數 (0-1 EntityRef<TEntity> 或 0-n EntitySet<TEntity> 。

適用於