public PermissionRoleStore(DbContext context)
 {
     if (context == null)
     {
         throw new ArgumentNullException(nameof(context));
     }
     this.Context = context;
     this._permissionRoleStore = new PermissionRoleStoreBase(context);
 }
 protected virtual void Dispose(bool disposing)
 {
     if (this.DisposeContext && disposing && this.Context != null)
     {
         this.Context.Dispose();
     }
     this._disposed            = true;
     this.Context              = null;
     this._permissionRoleStore = null;
 }