本文整理汇总了VB.NET中System.Data.Objects.ObjectContext.GetObjectByKey方法的典型用法代码示例。如果您正苦于以下问题：VB.NET ObjectContext.GetObjectByKey方法的具体用法？VB.NET ObjectContext.GetObjectByKey怎么用？VB.NET ObjectContext.GetObjectByKey使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.Objects.ObjectContext的用法示例。
在下文中一共展示了ObjectContext.GetObjectByKey方法的1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: AdventureWorksEntities
Using context As New AdventureWorksEntities()
Try
' Define the entity key values.
Dim entityKeyValues As IEnumerable(Of KeyValuePair(Of String, Object)) = _
New KeyValuePair(Of String, Object)() {New KeyValuePair(Of String, Object)("SalesOrderID", 43680)}
' Create the key for a specific SalesOrderHeader object.
Dim key As New EntityKey("AdventureWorksEntities.SalesOrderHeaders", entityKeyValues)
' Get the object from the context or the persisted store by its key.
Dim order As SalesOrderHeader = DirectCast(context.GetObjectByKey(key), SalesOrderHeader)
Console.WriteLine("SalesOrderID: {0} Order Number: {1}", order.SalesOrderID, order.SalesOrderNumber)
Catch ex As ObjectNotFoundException
Console.WriteLine(ex.ToString())
End Try
End Using