ObjectContext实例已经被放置,并且不能再用于需要连接的操作

问题描述

| 我的edmx设计器文件中包含以下代码:
    #region Navigation Properties

    /// <summary>
    /// No Metadata Documentation available.
    /// </summary>
    [XmlIgnoreAttribute()]
    [SoapIgnoreAttribute()]
    [DataMemberAttribute()]
    [EdmRelationshipNavigationPropertyAttribute(\"EnviroModel\",\"FK_Whiteout_Field1\",\"Field\")]
    public Field Field
    {
        get
        {
            **return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<Field>(\"EnviroModel.FK_Whiteout_Field1\",\"Field\").Value;**
        }
        set
        {
            ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<Field>(\"EnviroModel.FK_Whiteout_Field1\",\"Field\").Value = value;
        }
    }
我得到以下错误:
The ObjectContext instance has been disposed and can no longer be used for operations that require a connection.
    

解决方法

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