本文整理匯總了VB.NET中System.Data.Objects.ObjectContext.GetObjectByKey方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET ObjectContext.GetObjectByKey方法的具體用法？VB.NET ObjectContext.GetObjectByKey怎麽用？VB.NET ObjectContext.GetObjectByKey使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Data.Objects.ObjectContext的用法示例。
在下文中一共展示了ObjectContext.GetObjectByKey方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
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