本文整理汇总了VB.NET中System.Data.Linq.Table<TEntity>.AttachAll方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Table<TEntity>.AttachAll方法的具体用法?VB.NET Table<TEntity>.AttachAll怎么用?VB.NET Table<TEntity>.AttachAll使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了Table<TEntity>.AttachAll方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Northwnd
Using db As New Northwnd("")
' Get original Customer from deserialization.
Dim q1 = db.Orders.First()
Dim serializedQ As String = SerializeHelper.Serialize(q1)
Dim q2 = SerializeHelper.Deserialize(serializedQ, q1)
' Track this object for an update (not insert).
db.Orders.Attach(q2, False)
' Replay the changes.
q2.ShipRegion = "King"
q2.ShipAddress = "1 Microsoft Way"
' DataContext knows how to update the order.
db.SubmitChanges()
End Using
示例2: method7
Sub method7()
Dim c As Customer = Nothing
Using db = New Northwnd("...")
' Get both the customer c and the customer's order
' into the cache.
c = db.Customers.First()
Dim sc = c.Orders.First().ShipCity
End Using
Using nw2 = New Northwnd("...")
' Attach customers and update the address.
nw2.Customers.Attach(c, False)
c.Address = "new"
nw2.Log = Console.Out
' At SubmitChanges, you will see INSERT requests for all
' c's orders.
nw2.SubmitChanges()
End Using
示例3: Customer
Dim custA_File = New Customer()
Dim custB_File = New Customer()
Dim xmlFileA As String = ""
Dim xmlFileB As String = ""
' Get the serialized objects.
Dim A As Customer = SerializeHelper.Deserialize(Of Customer)(xmlFileA, custA_File)
Dim B As Customer = SerializeHelper.Deserialize(Of Customer)(xmlFileB, custB_File)
Dim AOrders As List(Of Order) = A.Orders.ToList()
Using db As New Northwnd("...")
'Attach all the orders belonging to Customer A all at once.
db.Orders.AttachAll(AOrders, False)
' Update the orders belonging to Customer A to show them
' as owned by Customer B
For Each o In AOrders
o.CustomerID = B.CustomerID
Next
' DataContext can now apply the change of ownership to
'the database
db.SubmitChanges()
End Using